VirtuosoDatabaseMetaData (virtjdbc4

java.lang.Object
- virtuoso.jdbc4.VirtuosoDatabaseMetaData

All Implemented Interfaces:

java.sql.DatabaseMetaData, java.sql.Wrapper
```
public class VirtuosoDatabaseMetaData
extends java.lang.Object
implements java.sql.DatabaseMetaData
```
The DatabaseMetaData class is an implementation of the DatabaseMetaData interface in the JDBC API which represents the database meta data. You can have one with:
```
   DatabaseMetaData metaData = connection.getMetaData()
 
```
See Also:

DatabaseMetaData, Connection.getMetaData(), VirtuosoResultSet

Field Summary

Fields
Modifier and Type	Field	Description
`static java.lang.String`	`fk_text_casemode_0`
`static java.lang.String`	`fk_text_casemode_2`
`static java.lang.String`	`fk_textw_casemode_0`
`static java.lang.String`	`fk_textw_casemode_2`
`static java.lang.String`	`getBestRowIdText_case0`
`static java.lang.String`	`getBestRowIdText_case2`
`static java.lang.String`	`getBestVersionColsText_case0`
`static java.lang.String`	`getBestVersionColsText_case2`
`static java.lang.String`	`getWideBestRowIdText_case0`
`static java.lang.String`	`getWideBestRowIdText_case2`
`static java.lang.String`	`getWideBestVersionColsText_case0`
`static java.lang.String`	`getWideBestVersionColsText_case2`
`static java.lang.String`	`sql_statistics_text_casemode_0`
`static java.lang.String`	`sql_statistics_text_casemode_2`
`static java.lang.String`	`sql_statistics_textw_casemode_0`
`static java.lang.String`	`sql_statistics_textw_casemode_2`
`static int`	`VARCHAR_UNSPEC_SIZE`

Fields inherited from interface java.sql.DatabaseMetaData
attributeNoNulls, attributeNullable, attributeNullableUnknown, bestRowNotPseudo, bestRowPseudo, bestRowSession, bestRowTemporary, bestRowTransaction, bestRowUnknown, columnNoNulls, columnNullable, columnNullableUnknown, functionColumnIn, functionColumnInOut, functionColumnOut, functionColumnResult, functionColumnUnknown, functionNoNulls, functionNoTable, functionNullable, functionNullableUnknown, functionResultUnknown, functionReturn, functionReturnsTable, importedKeyCascade, importedKeyInitiallyDeferred, importedKeyInitiallyImmediate, importedKeyNoAction, importedKeyNotDeferrable, importedKeyRestrict, importedKeySetDefault, importedKeySetNull, procedureColumnIn, procedureColumnInOut, procedureColumnOut, procedureColumnResult, procedureColumnReturn, procedureColumnUnknown, procedureNoNulls, procedureNoResult, procedureNullable, procedureNullableUnknown, procedureResultUnknown, procedureReturnsResult, sqlStateSQL, sqlStateSQL99, sqlStateXOpen, tableIndexClustered, tableIndexHashed, tableIndexOther, tableIndexStatistic, typeNoNulls, typeNullable, typeNullableUnknown, typePredBasic, typePredChar, typePredNone, typeSearchable, versionColumnNotPseudo, versionColumnPseudo, versionColumnUnknown

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`allProceduresAreCallable()`	Can all the procedures returned by getProcedures be called by the current user?
`boolean`	`allTablesAreSelectable()`	Can all the tables returned by getTable be SELECTed by the current user?
`boolean`	`autoCommitFailureClosesAllResultSets()`	Retrieves whether a `SQLException` while autoCommit is `true` inidcates that all open ResultSets are closed, even ones that are holdable.
`boolean`	`dataDefinitionCausesTransactionCommit()`	Does a data definition statement within a transaction force the transaction to commit?
`boolean`	`dataDefinitionIgnoredInTransactions()`	Is a data definition statement within a transaction ignored?
`boolean`	`deletesAreDetected(int type)`	Indicates whether or not a visible row delete can be detected by calling ResultSet.rowDeleted().
`boolean`	`doesMaxRowSizeIncludeBlobs()`	Did getMaxRowSize() include LONGVARCHAR and LONGVARBINARY blobs?
`boolean`	`generatedKeyAlwaysReturned()`	Retrieves whether a generated key will always be returned if the column name(s) or index(es) specified for the auto generated key column(s) are valid and the statement succeeds.
`java.sql.ResultSet`	`getAttributes(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String typeNamePattern, java.lang.String attributeNamePattern)`	Retrieves a description of the given attribute of the given type for a user-defined type (UDT) that is available in the given schema and catalog.
`java.sql.ResultSet`	`getBestRowIdentifier(java.lang.String catalog, java.lang.String schema, java.lang.String table, int scope, boolean nullable)`	Gets a description of a table's optimal set of columns that uniquely identifies a row.
`java.sql.ResultSet`	`getCatalogs()`	Gets the catalog names available in this database.
`java.lang.String`	`getCatalogSeparator()`	What's the separator between catalog and table name?
`java.lang.String`	`getCatalogTerm()`	What's the database vendor's preferred term for "catalog"?
`java.sql.ResultSet`	`getClientInfoProperties()`	Retrieves a list of the client info properties that the driver supports.
`java.sql.ResultSet`	`getColumnPrivileges(java.lang.String catalog, java.lang.String schema, java.lang.String table, java.lang.String columnNamePattern)`	Gets a description of the access rights for a table's columns.
`java.sql.ResultSet`	`getColumns(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern, java.lang.String columnNamePattern)`	Gets a description of table columns available in the specified catalog.
`java.sql.Connection`	`getConnection()`	Retrieves the connection that produced this metadata object.
`java.sql.ResultSet`	`getCrossReference(java.lang.String primaryCatalog, java.lang.String primarySchema, java.lang.String primaryTable, java.lang.String foreignCatalog, java.lang.String foreignSchema, java.lang.String foreignTable)`	Gets a description of the foreign key columns in the foreign key table that reference the primary key columns of the primary key table (describe how one table imports anothere is key.) This should normally return a single foreign key/primary key pair (most tables only import a foreign key from a table once.) They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.
`int`	`getDatabaseMajorVersion()`	Retrieves the major version number of the underlying database.
`int`	`getDatabaseMinorVersion()`	Retrieves the minor version number of the underlying database.
`java.lang.String`	`getDatabaseProductName()`	Returns the name of this database product.
`java.lang.String`	`getDatabaseProductVersion()`	Returns the version of this database product.
`int`	`getDefaultTransactionIsolation()`	What's the database's default transaction isolation level? The values are defined in `java.sql.Connection`.
`int`	`getDriverMajorVersion()`	Returns the JDBC driver's major version number.
`int`	`getDriverMinorVersion()`	Returns the JDBC driver's minor version number.
`java.lang.String`	`getDriverName()`	Returns the name of this JDBC driver.
`java.lang.String`	`getDriverVersion()`	Returns the version of this JDBC driver.
`java.sql.ResultSet`	`getExportedKeys(java.lang.String catalog, java.lang.String schema, java.lang.String table)`	Gets a description of the foreign key columns that reference a table's primary key columns (the foreign keys exported by a table).
`java.lang.String`	`getExtraNameCharacters()`	Gets all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, A-Z, 0-9 and _).
`java.sql.ResultSet`	`getFunctionColumns(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String functionNamePattern, java.lang.String columnNamePattern)`	Retrieves a description of the given catalog's system or user function parameters and return type.
`java.sql.ResultSet`	`getFunctions(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String functionNamePattern)`	Retrieves a description of the system and user functions available in the given catalog.
`java.lang.String`	`getIdentifierQuoteString()`	Retrieves the string used to quote SQL identifiers.
`java.sql.ResultSet`	`getImportedKeys(java.lang.String catalog, java.lang.String schema, java.lang.String table)`	Gets a description of the primary key columns that are referenced by a table's foreign key columns (the primary keys imported by a table).
`java.sql.ResultSet`	`getIndexInfo(java.lang.String catalog, java.lang.String schema, java.lang.String table, boolean unique, boolean approximate)`	Gets a description of a table's indices and statistics.
`int`	`getJDBCMajorVersion()`	Retrieves the major JDBC version number for this driver.
`int`	`getJDBCMinorVersion()`	Retrieves the minor JDBC version number for this driver.
`int`	`getMaxBinaryLiteralLength()`	How many hex characters can you have in an inline binary literal?
`int`	`getMaxCatalogNameLength()`	What's the maximum length of a catalog name?
`int`	`getMaxCharLiteralLength()`	What's the max length for a character literal?
`int`	`getMaxColumnNameLength()`	What's the limit on column name length?
`int`	`getMaxColumnsInGroupBy()`	What's the maximum number of columns in a "GROUP BY" clause?
`int`	`getMaxColumnsInIndex()`	What's the maximum number of columns allowed in an index?
`int`	`getMaxColumnsInOrderBy()`	What's the maximum number of columns in an "ORDER BY" clause?
`int`	`getMaxColumnsInSelect()`	What's the maximum number of columns in a "SELECT" list?
`int`	`getMaxColumnsInTable()`	What's the maximum number of columns in a table?
`int`	`getMaxConnections()`	How many active connections can we have at a time to this database?
`int`	`getMaxCursorNameLength()`	What's the maximum cursor name length?
`int`	`getMaxIndexLength()`	What's the maximum length of an index (in bytes)?
`int`	`getMaxProcedureNameLength()`	What's the maximum length of a procedure name?
`int`	`getMaxRowSize()`	What's the maximum length of a single row?
`int`	`getMaxSchemaNameLength()`	What's the maximum length allowed for a schema name?
`int`	`getMaxStatementLength()`	What's the maximum length of a SQL statement?
`int`	`getMaxStatements()`	How many active statements can we have open at one time to this database?
`int`	`getMaxTableNameLength()`	What's the maximum length of a table name?
`int`	`getMaxTablesInSelect()`	What's the maximum number of tables in a SELECT statement?
`int`	`getMaxUserNameLength()`	What's the maximum length of a user name?
`java.lang.String`	`getNumericFunctions()`	Gets a comma-separated list of math functions.
`java.sql.ResultSet`	`getPrimaryKeys(java.lang.String catalog, java.lang.String schema, java.lang.String table)`	Gets a description of a table's primary key columns.
`java.sql.ResultSet`	`getProcedureColumns(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String procedureNamePattern, java.lang.String columnNamePattern)`	Gets a description of a catalog's stored procedure parameters and result columns.
`java.sql.ResultSet`	`getProcedures(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String procedureNamePattern)`	Gets a description of the stored procedures available in a catalog.
`java.lang.String`	`getProcedureTerm()`	What's the database vendor's preferred term for "procedure"?
`java.sql.ResultSet`	`getPseudoColumns(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern, java.lang.String columnNamePattern)`	Retrieves a description of the pseudo or hidden columns available in a given table within the specified catalog and schema.
`int`	`getResultSetHoldability()`	Retrieves the default holdability of this `ResultSet` object.
`java.sql.RowIdLifetime`	`getRowIdLifetime()`	Indicates whether or not this data source supports the SQL `ROWID` type, and if so the lifetime for which a `RowId` object remains valid.
`java.sql.ResultSet`	`getSchemas()`	Gets the schema names available in this database.
`java.sql.ResultSet`	`getSchemas(java.lang.String catalog, java.lang.String schemaPattern)`	Retrieves the schema names available in this database.
`java.lang.String`	`getSchemaTerm()`	What's the database vendor's preferred term for "schema"?
`java.lang.String`	`getSearchStringEscape()`	Gets the string that can be used to escape wildcard characters.
`java.lang.String`	`getSQLKeywords()`	Gets a comma-separated list of all a database's SQL keywords that are NOT also SQL92 keywords.
`int`	`getSQLStateType()`	Indicates whether the SQLSTATEs returned by `SQLException.getSQLState` is X/Open (now known as Open Group) SQL CLI or SQL99.
`java.lang.String`	`getStringFunctions()`	Gets a comma-separated list of string functions.
`java.sql.ResultSet`	`getSuperTables(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern)`	Retrieves a description of the table hierarchies defined in a particular schema in this database.
`java.sql.ResultSet`	`getSuperTypes(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String typeNamePattern)`	Retrieves a description of the user-defined type (UDT) hierarchies defined in a particular schema in this database.
`java.lang.String`	`getSystemFunctions()`	Gets a comma-separated list of system functions.
`java.sql.ResultSet`	`getTablePrivileges(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern)`	Gets a description of the access rights for each table available in a catalog.
`java.sql.ResultSet`	`getTables(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern, java.lang.String[] types)`	Gets a description of tables available in a catalog.
`java.sql.ResultSet`	`getTableTypes()`	Gets the table types available in this database.
`java.lang.String`	`getTimeDateFunctions()`	Gets a comma-separated list of time and date functions.
`java.sql.ResultSet`	`getTypeInfo()`	Gets a description of all the standard SQL types supported by this database.
`java.sql.ResultSet`	`getUDTs(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String typeNamePattern, int[] types)`	Gets a description of the user-defined types defined in a particular schema.
`java.lang.String`	`getURL()`	Returns the URL which permits to access the database.
`java.lang.String`	`getUserName()`	Returns the user name as known to the database.
`java.sql.ResultSet`	`getVersionColumns(java.lang.String catalog, java.lang.String schema, java.lang.String table)`	Gets a description of a table's columns that are automatically updated when any value in a row is updated.
`boolean`	`insertsAreDetected(int type)`	Indicates whether or not a visible row insert can be detected by calling ResultSet.rowInserted().
`boolean`	`isCatalogAtStart()`	Does a catalog appear at the start of a qualified table name? (Otherwise it appears at the end)
`boolean`	`isReadOnly()`	Is the database in read-only mode?
`boolean`	`isWrapperFor(java.lang.Class<?> iface)`	Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does.
`boolean`	`locatorsUpdateCopy()`	Indicates whether updates made to a LOB are made on a copy or directly to the LOB.
`boolean`	`nullPlusNonNullIsNull()`	Retrieves whether this database supports concatenations between `NULL` and non-`NULL` values being `NULL`.
`boolean`	`nullsAreSortedAtEnd()`	Are NULL values sorted at the end regardless of sort order?
`boolean`	`nullsAreSortedAtStart()`	Are NULL values sorted at the start regardless of sort order?
`boolean`	`nullsAreSortedHigh()`	Are NULL values sorted high?
`boolean`	`nullsAreSortedLow()`	Are NULL values sorted low?
`boolean`	`othersDeletesAreVisible(int type)`	Indicates whether deletes made by others are visible.
`boolean`	`othersInsertsAreVisible(int type)`	Indicates whether inserts made by others are visible.
`boolean`	`othersUpdatesAreVisible(int type)`	Indicates whether updates made by others are visible.
`boolean`	`ownDeletesAreVisible(int type)`	Indicates whether a result set's own deletes are visible.
`boolean`	`ownInsertsAreVisible(int type)`	Indicates whether a result set's own inserts are visible.
`boolean`	`ownUpdatesAreVisible(int type)`	Indicates whether a result set's own updates are visible.
`boolean`	`storesLowerCaseIdentifiers()`	Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in lower case?
`boolean`	`storesLowerCaseQuotedIdentifiers()`	Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in lower case?
`boolean`	`storesMixedCaseIdentifiers()`	Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in mixed case?
`boolean`	`storesMixedCaseQuotedIdentifiers()`	Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in mixed case?
`boolean`	`storesUpperCaseIdentifiers()`	Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in upper case?
`boolean`	`storesUpperCaseQuotedIdentifiers()`	Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in upper case?
`boolean`	`supportsAlterTableWithAddColumn()`	Is "ALTER TABLE" with add column supported?
`boolean`	`supportsAlterTableWithDropColumn()`	Is "ALTER TABLE" with drop column supported?
`boolean`	`supportsANSI92EntryLevelSQL()`	Retrieves whether this database supports the ANSI92 entry level SQL grammar.
`boolean`	`supportsANSI92FullSQL()`	Is the ANSI92 full SQL grammar supported?
`boolean`	`supportsANSI92IntermediateSQL()`	Is the ANSI92 intermediate SQL grammar supported?
`boolean`	`supportsBatchUpdates()`	Indicates whether the driver supports batch updates.
`boolean`	`supportsCatalogsInDataManipulation()`	Can a catalog name be used in a data manipulation statement?
`boolean`	`supportsCatalogsInIndexDefinitions()`	Can a catalog name be used in an index definition statement?
`boolean`	`supportsCatalogsInPrivilegeDefinitions()`	Can a catalog name be used in a privilege definition statement?
`boolean`	`supportsCatalogsInProcedureCalls()`	Can a catalog name be used in a procedure call statement?
`boolean`	`supportsCatalogsInTableDefinitions()`	Can a catalog name be used in a table definition statement?
`boolean`	`supportsColumnAliasing()`	Retrieves whether this database supports column aliasing.
`boolean`	`supportsConvert()`	Is the CONVERT function between SQL types supported?
`boolean`	`supportsConvert(int fromType, int toType)`	Is CONVERT between the given SQL types supported?
`boolean`	`supportsCoreSQLGrammar()`	Is the ODBC Core SQL grammar supported?
`boolean`	`supportsCorrelatedSubqueries()`	Retrieves whether this database supports correlated subqueries.
`boolean`	`supportsDataDefinitionAndDataManipulationTransactions()`	Are both data definition and data manipulation statements within a transaction supported?
`boolean`	`supportsDataManipulationTransactionsOnly()`	Are only data manipulation statements within a transaction supported?
`boolean`	`supportsDifferentTableCorrelationNames()`	If table correlation names are supported, are they restricted to be different from the names of the tables?
`boolean`	`supportsExpressionsInOrderBy()`	Are expressions in "ORDER BY" lists supported?
`boolean`	`supportsExtendedSQLGrammar()`	Is the ODBC Extended SQL grammar supported?
`boolean`	`supportsFullOuterJoins()`	Are full nested outer joins supported?
`boolean`	`supportsGetGeneratedKeys()`	Retrieves whether auto-generated keys can be retrieved after a statement has been executed.
`boolean`	`supportsGroupBy()`	Is some form of "GROUP BY" clause supported?
`boolean`	`supportsGroupByBeyondSelect()`	Can a "GROUP BY" clause add columns not in the SELECT provided it specifies all the columns in the SELECT?
`boolean`	`supportsGroupByUnrelated()`	Can a "GROUP BY" clause use columns not in the SELECT?
`boolean`	`supportsIntegrityEnhancementFacility()`	Is the SQL Integrity Enhancement Facility supported?
`boolean`	`supportsLikeEscapeClause()`	Retrieves whether this database supports specifying a `LIKE` escape clause.
`boolean`	`supportsLimitedOuterJoins()`	Is there limited support for outer joins? (This will be true if supportFullOuterJoins is true.)
`boolean`	`supportsMinimumSQLGrammar()`	Retrieves whether this database supports the ODBC Minimum SQL grammar.
`boolean`	`supportsMixedCaseIdentifiers()`	Retrieves whether this database treats mixed case unquoted SQL identifiers as case sensitive and as a result stores them in mixed case.
`boolean`	`supportsMixedCaseQuotedIdentifiers()`	Retrieves whether this database treats mixed case quoted SQL identifiers as case sensitive and as a result stores them in mixed case.
`boolean`	`supportsMultipleOpenResults()`	Retrieves whether it is possible to have multiple `ResultSet` objects returned from a `CallableStatement` object simultaneously.
`boolean`	`supportsMultipleResultSets()`	Are multiple ResultSets from a single execute supported?
`boolean`	`supportsMultipleTransactions()`	Can we have multiple transactions open at once (on different connections)?
`boolean`	`supportsNamedParameters()`	Retrieves whether this database supports named parameters to callable statements.
`boolean`	`supportsNonNullableColumns()`	Retrieves whether columns in this database may be defined as non-nullable.
`boolean`	`supportsOpenCursorsAcrossCommit()`	Can cursors remain open across commits?
`boolean`	`supportsOpenCursorsAcrossRollback()`	Can cursors remain open across rollbacks?
`boolean`	`supportsOpenStatementsAcrossCommit()`	Can statements remain open across commits?
`boolean`	`supportsOpenStatementsAcrossRollback()`	Can statements remain open across rollbacks?
`boolean`	`supportsOrderByUnrelated()`	Can an "ORDER BY" clause use columns not in the SELECT statement?
`boolean`	`supportsOuterJoins()`	Is some form of outer join supported?
`boolean`	`supportsPositionedDelete()`	Is positioned DELETE supported?
`boolean`	`supportsPositionedUpdate()`	Is positioned UPDATE supported?
`boolean`	`supportsResultSetConcurrency(int type, int concurrency)`	Does the database support the concurrency type in combination with the given result set type?
`boolean`	`supportsResultSetHoldability(int holdability)`	Retrieves whether this database supports the given result set holdability.
`boolean`	`supportsResultSetType(int type)`	Does the database support the given result set type?
`boolean`	`supportsSavepoints()`	Retrieves whether this database supports savepoints.
`boolean`	`supportsSchemasInDataManipulation()`	Can a schema name be used in a data manipulation statement?
`boolean`	`supportsSchemasInIndexDefinitions()`	Can a schema name be used in an index definition statement?
`boolean`	`supportsSchemasInPrivilegeDefinitions()`	Can a schema name be used in a privilege definition statement?
`boolean`	`supportsSchemasInProcedureCalls()`	Can a schema name be used in a procedure call statement?
`boolean`	`supportsSchemasInTableDefinitions()`	Can a schema name be used in a table definition statement?
`boolean`	`supportsSelectForUpdate()`	Is SELECT for UPDATE supported?
`boolean`	`supportsStatementPooling()`	Retrieves weather this database supports statement pooling.
`boolean`	`supportsStoredFunctionsUsingCallSyntax()`	Retrieves whether this database supports invoking user-defined or vendor functions using the stored procedure escape syntax.
`boolean`	`supportsStoredProcedures()`	Are stored procedure calls using the stored procedure escape syntax supported?
`boolean`	`supportsSubqueriesInComparisons()`	Retrieves whether this database supports subqueries in comparison expressions.
`boolean`	`supportsSubqueriesInExists()`	Retrieves whether this database supports subqueries in `EXISTS` expressions.
`boolean`	`supportsSubqueriesInIns()`	Retrieves whether this database supports subqueries in `IN` expressions.
`boolean`	`supportsSubqueriesInQuantifieds()`	Retrieves whether this database supports subqueries in quantified expressions.
`boolean`	`supportsTableCorrelationNames()`	Retrieves whether this database supports table correlation names.
`boolean`	`supportsTransactionIsolationLevel(int level)`	Does this database support the given transaction isolation level?
`boolean`	`supportsTransactions()`	Are transactions supported? If not, invoking the method `commit` is a noop and the isolation level is TRANSACTION_NONE.
`boolean`	`supportsUnion()`	Is SQL UNION supported?
`boolean`	`supportsUnionAll()`	Is SQL UNION ALL supported?
`<T> T`	`unwrap(java.lang.Class<T> iface)`	Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.
`boolean`	`updatesAreDetected(int type)`	Indicates whether or not a visible row update can be detected by calling the method `ResultSet.rowUpdated`.
`boolean`	`usesLocalFilePerTable()`	Does the database use a file for each table?
`boolean`	`usesLocalFiles()`	Does the database store tables in a local file?

Methods inherited from interface java.sql.DatabaseMetaData
getMaxLogicalLobSize, supportsRefCursors, supportsSharding

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - VARCHAR_UNSPEC_SIZE
```
public static final int VARCHAR_UNSPEC_SIZE
```
    See Also:
    
    Constant Field Values
  - getWideBestRowIdText_case0
```
public static final java.lang.String getWideBestRowIdText_case0
```
    See Also:
    
    Constant Field Values
  - getWideBestRowIdText_case2
```
public static final java.lang.String getWideBestRowIdText_case2
```
    See Also:
    
    Constant Field Values
  - getBestRowIdText_case0
```
public static final java.lang.String getBestRowIdText_case0
```
    See Also:
    
    Constant Field Values
  - getBestRowIdText_case2
```
public static final java.lang.String getBestRowIdText_case2
```
    See Also:
    
    Constant Field Values
  - getWideBestVersionColsText_case0
```
public static final java.lang.String getWideBestVersionColsText_case0
```
    See Also:
    
    Constant Field Values
  - getWideBestVersionColsText_case2
```
public static final java.lang.String getWideBestVersionColsText_case2
```
    See Also:
    
    Constant Field Values
  - getBestVersionColsText_case0
```
public static final java.lang.String getBestVersionColsText_case0
```
    See Also:
    
    Constant Field Values
  - getBestVersionColsText_case2
```
public static final java.lang.String getBestVersionColsText_case2
```
    See Also:
    
    Constant Field Values
  - fk_text_casemode_0
```
public static final java.lang.String fk_text_casemode_0
```
    See Also:
    
    Constant Field Values
  - fk_text_casemode_2
```
public static final java.lang.String fk_text_casemode_2
```
    See Also:
    
    Constant Field Values
  - fk_textw_casemode_0
```
public static final java.lang.String fk_textw_casemode_0
```
    See Also:
    
    Constant Field Values
  - fk_textw_casemode_2
```
public static final java.lang.String fk_textw_casemode_2
```
    See Also:
    
    Constant Field Values
  - sql_statistics_text_casemode_0
```
public static final java.lang.String sql_statistics_text_casemode_0
```
    See Also:
    
    Constant Field Values
  - sql_statistics_text_casemode_2
```
public static final java.lang.String sql_statistics_text_casemode_2
```
    See Also:
    
    Constant Field Values
  - sql_statistics_textw_casemode_0
```
public static final java.lang.String sql_statistics_textw_casemode_0
```
    See Also:
    
    Constant Field Values
  - sql_statistics_textw_casemode_2
```
public static final java.lang.String sql_statistics_textw_casemode_2
```
    See Also:
    
    Constant Field Values
- Method Detail
  - getURL
```
public java.lang.String getURL()
                        throws VirtuosoException
```
    Returns the URL which permits to access the database.
    
    Specified by:
    
    getURL in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the url or null if it cannot be generated.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getUserName
```
public java.lang.String getUserName()
                             throws VirtuosoException
```
    Returns the user name as known to the database.
    
    Specified by:
    
    getUserName in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the database user name used.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - isReadOnly
```
public boolean isReadOnly()
                   throws VirtuosoException
```
    Is the database in read-only mode?
    
    Specified by:
    
    isReadOnly in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - nullsAreSortedHigh
```
public boolean nullsAreSortedHigh()
                           throws VirtuosoException
```
    Are NULL values sorted high?
    
    Specified by:
    
    nullsAreSortedHigh in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - nullsAreSortedLow
```
public boolean nullsAreSortedLow()
                          throws VirtuosoException
```
    Are NULL values sorted low?
    
    Specified by:
    
    nullsAreSortedLow in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - nullsAreSortedAtStart
```
public boolean nullsAreSortedAtStart()
                              throws VirtuosoException
```
    Are NULL values sorted at the start regardless of sort order?
    
    Specified by:
    
    nullsAreSortedAtStart in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - nullsAreSortedAtEnd
```
public boolean nullsAreSortedAtEnd()
                            throws VirtuosoException
```
    Are NULL values sorted at the end regardless of sort order?
    
    Specified by:
    
    nullsAreSortedAtEnd in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getDatabaseProductName
```
public java.lang.String getDatabaseProductName()
                                        throws VirtuosoException
```
    Returns the name of this database product. In our case it is OpenLink Virtuoso DBMS.
    
    Specified by:
    
    getDatabaseProductName in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the database product name.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getDatabaseProductVersion
```
public java.lang.String getDatabaseProductVersion()
                                           throws VirtuosoException
```
    Returns the version of this database product.
    
    Specified by:
    
    getDatabaseProductVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the database version.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getDriverName
```
public java.lang.String getDriverName()
                               throws VirtuosoException
```
    Returns the name of this JDBC driver. In our case it is OpenLink Virtuoso JDBC pure Java.
    
    Specified by:
    
    getDriverName in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the JDBC driver name.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getDriverVersion
```
public java.lang.String getDriverVersion()
                                  throws VirtuosoException
```
    Returns the version of this JDBC driver.
    
    Specified by:
    
    getDriverVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the JDBC driver version.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getDriverMajorVersion
```
public int getDriverMajorVersion()
```
    Returns the JDBC driver's major version number.
    
    Specified by:
    
    getDriverMajorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the JDBC driver major version.
  - getDriverMinorVersion
```
public int getDriverMinorVersion()
```
    Returns the JDBC driver's minor version number.
    
    Specified by:
    
    getDriverMinorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the JDBC driver minor version.
  - usesLocalFiles
```
public boolean usesLocalFiles()
                       throws VirtuosoException
```
    Does the database store tables in a local file?
    
    Specified by:
    
    usesLocalFiles in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - usesLocalFilePerTable
```
public boolean usesLocalFilePerTable()
                              throws VirtuosoException
```
    Does the database use a file for each table?
    
    Specified by:
    
    usesLocalFilePerTable in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if the database uses a local file for each table.
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsMixedCaseIdentifiers
```
public boolean supportsMixedCaseIdentifiers()
                                     throws VirtuosoException
```
    Retrieves whether this database treats mixed case unquoted SQL identifiers as case sensitive and as a result stores them in mixed case.
    
    Specified by:
    
    supportsMixedCaseIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - storesUpperCaseIdentifiers
```
public boolean storesUpperCaseIdentifiers()
                                   throws VirtuosoException
```
    Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in upper case?
    
    Specified by:
    
    storesUpperCaseIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - storesLowerCaseIdentifiers
```
public boolean storesLowerCaseIdentifiers()
                                   throws VirtuosoException
```
    Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in lower case?
    
    Specified by:
    
    storesLowerCaseIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - storesMixedCaseIdentifiers
```
public boolean storesMixedCaseIdentifiers()
                                   throws VirtuosoException
```
    Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in mixed case?
    
    Specified by:
    
    storesMixedCaseIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsMixedCaseQuotedIdentifiers
```
public boolean supportsMixedCaseQuotedIdentifiers()
                                           throws VirtuosoException
```
    Retrieves whether this database treats mixed case quoted SQL identifiers as case sensitive and as a result stores them in mixed case.
    
    Specified by:
    
    supportsMixedCaseQuotedIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - storesUpperCaseQuotedIdentifiers
```
public boolean storesUpperCaseQuotedIdentifiers()
                                         throws VirtuosoException
```
    Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in upper case?
    
    Specified by:
    
    storesUpperCaseQuotedIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - storesLowerCaseQuotedIdentifiers
```
public boolean storesLowerCaseQuotedIdentifiers()
                                         throws VirtuosoException
```
    Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in lower case?
    
    Specified by:
    
    storesLowerCaseQuotedIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - storesMixedCaseQuotedIdentifiers
```
public boolean storesMixedCaseQuotedIdentifiers()
                                         throws VirtuosoException
```
    Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in mixed case?
    
    Specified by:
    
    storesMixedCaseQuotedIdentifiers in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getIdentifierQuoteString
```
public java.lang.String getIdentifierQuoteString()
                                          throws VirtuosoException
```
    Retrieves the string used to quote SQL identifiers. This method returns a space " " if identifier quoting is not supported.
    
    Specified by:
    
    getIdentifierQuoteString in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the quoting string
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getSQLKeywords
```
public java.lang.String getSQLKeywords()
                                throws VirtuosoException
```
    Gets a comma-separated list of all a database's SQL keywords that are NOT also SQL92 keywords.
    
    Specified by:
    
    getSQLKeywords in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the list
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getNumericFunctions
```
public java.lang.String getNumericFunctions()
                                     throws VirtuosoException
```
    Gets a comma-separated list of math functions. These are the X/Open CLI math function names used in the JDBC function escape clause.
    
    Specified by:
    
    getNumericFunctions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the list
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getStringFunctions
```
public java.lang.String getStringFunctions()
                                    throws VirtuosoException
```
    Gets a comma-separated list of string functions. These are the X/Open CLI string function names used in the JDBC function escape clause.
    
    Specified by:
    
    getStringFunctions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the list
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getSystemFunctions
```
public java.lang.String getSystemFunctions()
                                    throws VirtuosoException
```
    Gets a comma-separated list of system functions. These are the X/Open CLI system function names used in the JDBC function escape clause.
    
    Specified by:
    
    getSystemFunctions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the list
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getTimeDateFunctions
```
public java.lang.String getTimeDateFunctions()
                                      throws VirtuosoException
```
    Gets a comma-separated list of time and date functions.
    
    Specified by:
    
    getTimeDateFunctions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the list
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getSearchStringEscape
```
public java.lang.String getSearchStringEscape()
                                       throws VirtuosoException
```
    Gets the string that can be used to escape wildcard characters. This is the string that can be used to escape '_' or '%' in the string pattern style catalog search parameters.
    The '_' character represents any single character.
    The '%' character represents any sequence of zero or more characters.
    
    Specified by:
    
    getSearchStringEscape in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the string used to escape wildcard characters
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getExtraNameCharacters
```
public java.lang.String getExtraNameCharacters()
                                        throws VirtuosoException
```
    Gets all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, A-Z, 0-9 and _).
    
    Specified by:
    
    getExtraNameCharacters in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the string containing the extra characters
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsAlterTableWithAddColumn
```
public boolean supportsAlterTableWithAddColumn()
                                        throws VirtuosoException
```
    Is "ALTER TABLE" with add column supported?
    
    Specified by:
    
    supportsAlterTableWithAddColumn in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsAlterTableWithDropColumn
```
public boolean supportsAlterTableWithDropColumn()
                                         throws VirtuosoException
```
    Is "ALTER TABLE" with drop column supported?
    
    Specified by:
    
    supportsAlterTableWithDropColumn in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsColumnAliasing
```
public boolean supportsColumnAliasing()
                               throws VirtuosoException
```
    Retrieves whether this database supports column aliasing.
    If so, the SQL AS clause can be used to provide names for computed columns or to provide alias names for columns as required.
    
    Specified by:
    
    supportsColumnAliasing in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - nullPlusNonNullIsNull
```
public boolean nullPlusNonNullIsNull()
                              throws VirtuosoException
```
    Retrieves whether this database supports concatenations between NULL and non-NULL values being NULL.
    
    Specified by:
    
    nullPlusNonNullIsNull in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsConvert
```
public boolean supportsConvert()
                        throws VirtuosoException
```
    Is the CONVERT function between SQL types supported?
    
    Specified by:
    
    supportsConvert in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsConvert
```
public boolean supportsConvert(int fromType,
                               int toType)
                        throws VirtuosoException
```
    Is CONVERT between the given SQL types supported?
    
    Specified by:
    
    supportsConvert in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    fromType - the type to convert from
    
    toType - the type to convert to
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsTableCorrelationNames
```
public boolean supportsTableCorrelationNames()
                                      throws VirtuosoException
```
    Retrieves whether this database supports table correlation names.
    
    Specified by:
    
    supportsTableCorrelationNames in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsDifferentTableCorrelationNames
```
public boolean supportsDifferentTableCorrelationNames()
                                               throws VirtuosoException
```
    If table correlation names are supported, are they restricted to be different from the names of the tables?
    
    Specified by:
    
    supportsDifferentTableCorrelationNames in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsExpressionsInOrderBy
```
public boolean supportsExpressionsInOrderBy()
                                     throws VirtuosoException
```
    Are expressions in "ORDER BY" lists supported?
    
    Specified by:
    
    supportsExpressionsInOrderBy in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsOrderByUnrelated
```
public boolean supportsOrderByUnrelated()
                                 throws VirtuosoException
```
    Can an "ORDER BY" clause use columns not in the SELECT statement?
    
    Specified by:
    
    supportsOrderByUnrelated in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsGroupBy
```
public boolean supportsGroupBy()
                        throws VirtuosoException
```
    Is some form of "GROUP BY" clause supported?
    
    Specified by:
    
    supportsGroupBy in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsGroupByUnrelated
```
public boolean supportsGroupByUnrelated()
                                 throws VirtuosoException
```
    Can a "GROUP BY" clause use columns not in the SELECT?
    
    Specified by:
    
    supportsGroupByUnrelated in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsGroupByBeyondSelect
```
public boolean supportsGroupByBeyondSelect()
                                    throws VirtuosoException
```
    Can a "GROUP BY" clause add columns not in the SELECT provided it specifies all the columns in the SELECT?
    
    Specified by:
    
    supportsGroupByBeyondSelect in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsLikeEscapeClause
```
public boolean supportsLikeEscapeClause()
                                 throws VirtuosoException
```
    Retrieves whether this database supports specifying a LIKE escape clause.
    
    Specified by:
    
    supportsLikeEscapeClause in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsMultipleResultSets
```
public boolean supportsMultipleResultSets()
                                   throws VirtuosoException
```
    Are multiple ResultSets from a single execute supported?
    
    Specified by:
    
    supportsMultipleResultSets in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsMultipleTransactions
```
public boolean supportsMultipleTransactions()
                                     throws VirtuosoException
```
    Can we have multiple transactions open at once (on different connections)?
    
    Specified by:
    
    supportsMultipleTransactions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsNonNullableColumns
```
public boolean supportsNonNullableColumns()
                                   throws VirtuosoException
```
    Retrieves whether columns in this database may be defined as non-nullable.
    
    Specified by:
    
    supportsNonNullableColumns in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsMinimumSQLGrammar
```
public boolean supportsMinimumSQLGrammar()
                                  throws VirtuosoException
```
    Retrieves whether this database supports the ODBC Minimum SQL grammar.
    
    Specified by:
    
    supportsMinimumSQLGrammar in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsCoreSQLGrammar
```
public boolean supportsCoreSQLGrammar()
                               throws VirtuosoException
```
    Is the ODBC Core SQL grammar supported?
    
    Specified by:
    
    supportsCoreSQLGrammar in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsExtendedSQLGrammar
```
public boolean supportsExtendedSQLGrammar()
                                   throws VirtuosoException
```
    Is the ODBC Extended SQL grammar supported?
    
    Specified by:
    
    supportsExtendedSQLGrammar in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsANSI92EntryLevelSQL
```
public boolean supportsANSI92EntryLevelSQL()
                                    throws VirtuosoException
```
    Retrieves whether this database supports the ANSI92 entry level SQL grammar.
    
    Specified by:
    
    supportsANSI92EntryLevelSQL in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsANSI92IntermediateSQL
```
public boolean supportsANSI92IntermediateSQL()
                                      throws VirtuosoException
```
    Is the ANSI92 intermediate SQL grammar supported?
    
    Specified by:
    
    supportsANSI92IntermediateSQL in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsANSI92FullSQL
```
public boolean supportsANSI92FullSQL()
                              throws VirtuosoException
```
    Is the ANSI92 full SQL grammar supported?
    
    Specified by:
    
    supportsANSI92FullSQL in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsIntegrityEnhancementFacility
```
public boolean supportsIntegrityEnhancementFacility()
                                             throws java.sql.SQLException
```
    Is the SQL Integrity Enhancement Facility supported?
    
    Specified by:
    
    supportsIntegrityEnhancementFacility in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
    
    java.sql.SQLException
  - supportsOuterJoins
```
public boolean supportsOuterJoins()
                           throws VirtuosoException
```
    Is some form of outer join supported?
    
    Specified by:
    
    supportsOuterJoins in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsFullOuterJoins
```
public boolean supportsFullOuterJoins()
                               throws VirtuosoException
```
    Are full nested outer joins supported?
    
    Specified by:
    
    supportsFullOuterJoins in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsLimitedOuterJoins
```
public boolean supportsLimitedOuterJoins()
                                  throws VirtuosoException
```
    Is there limited support for outer joins? (This will be true if supportFullOuterJoins is true.)
    
    Specified by:
    
    supportsLimitedOuterJoins in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getSchemaTerm
```
public java.lang.String getSchemaTerm()
                               throws VirtuosoException
```
    What's the database vendor's preferred term for "schema"?
    
    Specified by:
    
    getSchemaTerm in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the vendor term
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getProcedureTerm
```
public java.lang.String getProcedureTerm()
                                  throws VirtuosoException
```
    What's the database vendor's preferred term for "procedure"?
    
    Specified by:
    
    getProcedureTerm in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the vendor term
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getCatalogTerm
```
public java.lang.String getCatalogTerm()
                                throws VirtuosoException
```
    What's the database vendor's preferred term for "catalog"?
    
    Specified by:
    
    getCatalogTerm in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the vendor term
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - isCatalogAtStart
```
public boolean isCatalogAtStart()
                         throws VirtuosoException
```
    Does a catalog appear at the start of a qualified table name? (Otherwise it appears at the end)
    
    Specified by:
    
    isCatalogAtStart in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if it appears at the start
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getCatalogSeparator
```
public java.lang.String getCatalogSeparator()
                                     throws VirtuosoException
```
    What's the separator between catalog and table name?
    
    Specified by:
    
    getCatalogSeparator in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the separator string
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsSchemasInDataManipulation
```
public boolean supportsSchemasInDataManipulation()
                                          throws VirtuosoException
```
    Can a schema name be used in a data manipulation statement?
    
    Specified by:
    
    supportsSchemasInDataManipulation in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsSchemasInProcedureCalls
```
public boolean supportsSchemasInProcedureCalls()
                                        throws VirtuosoException
```
    Can a schema name be used in a procedure call statement?
    
    Specified by:
    
    supportsSchemasInProcedureCalls in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsSchemasInTableDefinitions
```
public boolean supportsSchemasInTableDefinitions()
                                          throws VirtuosoException
```
    Can a schema name be used in a table definition statement?
    
    Specified by:
    
    supportsSchemasInTableDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsSchemasInIndexDefinitions
```
public boolean supportsSchemasInIndexDefinitions()
                                          throws VirtuosoException
```
    Can a schema name be used in an index definition statement?
    
    Specified by:
    
    supportsSchemasInIndexDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsSchemasInPrivilegeDefinitions
```
public boolean supportsSchemasInPrivilegeDefinitions()
                                              throws VirtuosoException
```
    Can a schema name be used in a privilege definition statement?
    
    Specified by:
    
    supportsSchemasInPrivilegeDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsCatalogsInDataManipulation
```
public boolean supportsCatalogsInDataManipulation()
                                           throws VirtuosoException
```
    Can a catalog name be used in a data manipulation statement?
    
    Specified by:
    
    supportsCatalogsInDataManipulation in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsCatalogsInProcedureCalls
```
public boolean supportsCatalogsInProcedureCalls()
                                         throws VirtuosoException
```
    Can a catalog name be used in a procedure call statement?
    
    Specified by:
    
    supportsCatalogsInProcedureCalls in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsCatalogsInTableDefinitions
```
public boolean supportsCatalogsInTableDefinitions()
                                           throws VirtuosoException
```
    Can a catalog name be used in a table definition statement?
    
    Specified by:
    
    supportsCatalogsInTableDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsCatalogsInIndexDefinitions
```
public boolean supportsCatalogsInIndexDefinitions()
                                           throws VirtuosoException
```
    Can a catalog name be used in an index definition statement?
    
    Specified by:
    
    supportsCatalogsInIndexDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsCatalogsInPrivilegeDefinitions
```
public boolean supportsCatalogsInPrivilegeDefinitions()
                                               throws VirtuosoException
```
    Can a catalog name be used in a privilege definition statement?
    
    Specified by:
    
    supportsCatalogsInPrivilegeDefinitions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsPositionedDelete
```
public boolean supportsPositionedDelete()
                                 throws VirtuosoException
```
    Is positioned DELETE supported?
    
    Specified by:
    
    supportsPositionedDelete in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsPositionedUpdate
```
public boolean supportsPositionedUpdate()
                                 throws VirtuosoException
```
    Is positioned UPDATE supported?
    
    Specified by:
    
    supportsPositionedUpdate in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsSelectForUpdate
```
public boolean supportsSelectForUpdate()
                                throws VirtuosoException
```
    Is SELECT for UPDATE supported?
    
    Specified by:
    
    supportsSelectForUpdate in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsStoredProcedures
```
public boolean supportsStoredProcedures()
                                 throws VirtuosoException
```
    Are stored procedure calls using the stored procedure escape syntax supported?
    
    Specified by:
    
    supportsStoredProcedures in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsSubqueriesInComparisons
```
public boolean supportsSubqueriesInComparisons()
                                        throws VirtuosoException
```
    Retrieves whether this database supports subqueries in comparison expressions.
    
    Specified by:
    
    supportsSubqueriesInComparisons in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsSubqueriesInExists
```
public boolean supportsSubqueriesInExists()
                                   throws VirtuosoException
```
    Retrieves whether this database supports subqueries in EXISTS expressions.
    
    Specified by:
    
    supportsSubqueriesInExists in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsSubqueriesInIns
```
public boolean supportsSubqueriesInIns()
                                throws VirtuosoException
```
    Retrieves whether this database supports subqueries in IN expressions.
    
    Specified by:
    
    supportsSubqueriesInIns in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsSubqueriesInQuantifieds
```
public boolean supportsSubqueriesInQuantifieds()
                                        throws VirtuosoException
```
    Retrieves whether this database supports subqueries in quantified expressions.
    
    Specified by:
    
    supportsSubqueriesInQuantifieds in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsCorrelatedSubqueries
```
public boolean supportsCorrelatedSubqueries()
                                     throws VirtuosoException
```
    Retrieves whether this database supports correlated subqueries.
    
    Specified by:
    
    supportsCorrelatedSubqueries in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsUnion
```
public boolean supportsUnion()
                      throws VirtuosoException
```
    Is SQL UNION supported?
    
    Specified by:
    
    supportsUnion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsUnionAll
```
public boolean supportsUnionAll()
                         throws VirtuosoException
```
    Is SQL UNION ALL supported?
    
    Specified by:
    
    supportsUnionAll in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsOpenCursorsAcrossCommit
```
public boolean supportsOpenCursorsAcrossCommit()
                                        throws VirtuosoException
```
    Can cursors remain open across commits?
    
    Specified by:
    
    supportsOpenCursorsAcrossCommit in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if cursors always remain open; false if they might not remain open
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsOpenCursorsAcrossRollback
```
public boolean supportsOpenCursorsAcrossRollback()
                                          throws VirtuosoException
```
    Can cursors remain open across rollbacks?
    
    Specified by:
    
    supportsOpenCursorsAcrossRollback in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if cursors always remain open; false if they might not remain open
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsOpenStatementsAcrossCommit
```
public boolean supportsOpenStatementsAcrossCommit()
                                           throws VirtuosoException
```
    Can statements remain open across commits?
    
    Specified by:
    
    supportsOpenStatementsAcrossCommit in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if statements always remain open; false if they might not remain open
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsOpenStatementsAcrossRollback
```
public boolean supportsOpenStatementsAcrossRollback()
                                             throws VirtuosoException
```
    Can statements remain open across rollbacks?
    
    Specified by:
    
    supportsOpenStatementsAcrossRollback in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if statements always remain open; false if they might not remain open
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxBinaryLiteralLength
```
public int getMaxBinaryLiteralLength()
                              throws VirtuosoException
```
    How many hex characters can you have in an inline binary literal?
    
    Specified by:
    
    getMaxBinaryLiteralLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max binary literal length in hex characters; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxCharLiteralLength
```
public int getMaxCharLiteralLength()
                            throws VirtuosoException
```
    What's the max length for a character literal?
    
    Specified by:
    
    getMaxCharLiteralLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max literal length; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxColumnNameLength
```
public int getMaxColumnNameLength()
                           throws VirtuosoException
```
    What's the limit on column name length?
    
    Specified by:
    
    getMaxColumnNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max column name length; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxColumnsInGroupBy
```
public int getMaxColumnsInGroupBy()
                           throws VirtuosoException
```
    What's the maximum number of columns in a "GROUP BY" clause?
    
    Specified by:
    
    getMaxColumnsInGroupBy in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max number of columns; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxColumnsInIndex
```
public int getMaxColumnsInIndex()
                         throws VirtuosoException
```
    What's the maximum number of columns allowed in an index?
    
    Specified by:
    
    getMaxColumnsInIndex in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max number of columns; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxColumnsInOrderBy
```
public int getMaxColumnsInOrderBy()
                           throws VirtuosoException
```
    What's the maximum number of columns in an "ORDER BY" clause?
    
    Specified by:
    
    getMaxColumnsInOrderBy in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max number of columns; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxColumnsInSelect
```
public int getMaxColumnsInSelect()
                          throws VirtuosoException
```
    What's the maximum number of columns in a "SELECT" list?
    
    Specified by:
    
    getMaxColumnsInSelect in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max number of columns; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxColumnsInTable
```
public int getMaxColumnsInTable()
                         throws VirtuosoException
```
    What's the maximum number of columns in a table?
    
    Specified by:
    
    getMaxColumnsInTable in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max number of columns; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxConnections
```
public int getMaxConnections()
                      throws VirtuosoException
```
    How many active connections can we have at a time to this database?
    
    Specified by:
    
    getMaxConnections in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max number of active connections; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxCursorNameLength
```
public int getMaxCursorNameLength()
                           throws VirtuosoException
```
    What's the maximum cursor name length?
    
    Specified by:
    
    getMaxCursorNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max cursor name length in bytes; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxIndexLength
```
public int getMaxIndexLength()
                      throws VirtuosoException
```
    What's the maximum length of an index (in bytes)?
    
    Specified by:
    
    getMaxIndexLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max index length in bytes; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxSchemaNameLength
```
public int getMaxSchemaNameLength()
                           throws VirtuosoException
```
    What's the maximum length allowed for a schema name?
    
    Specified by:
    
    getMaxSchemaNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max name length in bytes; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxProcedureNameLength
```
public int getMaxProcedureNameLength()
                              throws VirtuosoException
```
    What's the maximum length of a procedure name?
    
    Specified by:
    
    getMaxProcedureNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max name length in bytes; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxCatalogNameLength
```
public int getMaxCatalogNameLength()
                            throws VirtuosoException
```
    What's the maximum length of a catalog name?
    
    Specified by:
    
    getMaxCatalogNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max name length in bytes; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxRowSize
```
public int getMaxRowSize()
                  throws VirtuosoException
```
    What's the maximum length of a single row?
    
    Specified by:
    
    getMaxRowSize in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max row size in bytes; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - doesMaxRowSizeIncludeBlobs
```
public boolean doesMaxRowSizeIncludeBlobs()
                                   throws VirtuosoException
```
    Did getMaxRowSize() include LONGVARCHAR and LONGVARBINARY blobs?
    
    Specified by:
    
    doesMaxRowSizeIncludeBlobs in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxStatementLength
```
public int getMaxStatementLength()
                          throws VirtuosoException
```
    What's the maximum length of a SQL statement?
    
    Specified by:
    
    getMaxStatementLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max length in bytes; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxStatements
```
public int getMaxStatements()
                     throws VirtuosoException
```
    How many active statements can we have open at one time to this database?
    
    Specified by:
    
    getMaxStatements in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the maximum number of statements that can be open at one time; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxTableNameLength
```
public int getMaxTableNameLength()
                          throws VirtuosoException
```
    What's the maximum length of a table name?
    
    Specified by:
    
    getMaxTableNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max name length in bytes; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxTablesInSelect
```
public int getMaxTablesInSelect()
                         throws VirtuosoException
```
    What's the maximum number of tables in a SELECT statement?
    
    Specified by:
    
    getMaxTablesInSelect in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the maximum number of tables allowed in a SELECT statement; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getMaxUserNameLength
```
public int getMaxUserNameLength()
                         throws VirtuosoException
```
    What's the maximum length of a user name?
    
    Specified by:
    
    getMaxUserNameLength in interface java.sql.DatabaseMetaData
    
    Returns:
    
    max user name length in bytes; a result of zero means that there is no limit or the limit is not known
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getDefaultTransactionIsolation
```
public int getDefaultTransactionIsolation()
                                   throws VirtuosoException
```
    What's the database's default transaction isolation level? The values are defined in java.sql.Connection.
    
    Specified by:
    
    getDefaultTransactionIsolation in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the default isolation level
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
    
    See Also:
    
    Connection
  - supportsTransactions
```
public boolean supportsTransactions()
                             throws VirtuosoException
```
    Are transactions supported? If not, invoking the method commit is a noop and the isolation level is TRANSACTION_NONE.
    
    Specified by:
    
    supportsTransactions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if transactions are supported; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsTransactionIsolationLevel
```
public boolean supportsTransactionIsolationLevel(int level)
                                          throws VirtuosoException
```
    Does this database support the given transaction isolation level?
    
    Specified by:
    
    supportsTransactionIsolationLevel in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    level - the values are defined in java.sql.Connection
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
    
    See Also:
    
    Connection
  - supportsDataDefinitionAndDataManipulationTransactions
```
public boolean supportsDataDefinitionAndDataManipulationTransactions()
                                                              throws VirtuosoException
```
    Are both data definition and data manipulation statements within a transaction supported?
    
    Specified by:
    
    supportsDataDefinitionAndDataManipulationTransactions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - supportsDataManipulationTransactionsOnly
```
public boolean supportsDataManipulationTransactionsOnly()
                                                 throws VirtuosoException
```
    Are only data manipulation statements within a transaction supported?
    
    Specified by:
    
    supportsDataManipulationTransactionsOnly in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - dataDefinitionCausesTransactionCommit
```
public boolean dataDefinitionCausesTransactionCommit()
                                              throws VirtuosoException
```
    Does a data definition statement within a transaction force the transaction to commit?
    
    Specified by:
    
    dataDefinitionCausesTransactionCommit in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - dataDefinitionIgnoredInTransactions
```
public boolean dataDefinitionIgnoredInTransactions()
                                            throws VirtuosoException
```
    Is a data definition statement within a transaction ignored?
    
    Specified by:
    
    dataDefinitionIgnoredInTransactions in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - allProceduresAreCallable
```
public boolean allProceduresAreCallable()
                                 throws VirtuosoException
```
    Can all the procedures returned by getProcedures be called by the current user?
    
    Specified by:
    
    allProceduresAreCallable in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - allTablesAreSelectable
```
public boolean allTablesAreSelectable()
                               throws VirtuosoException
```
    Can all the tables returned by getTable be SELECTed by the current user?
    
    Specified by:
    
    allTablesAreSelectable in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - No errors returned (just an implementation question).
  - getProcedures
```
public java.sql.ResultSet getProcedures(java.lang.String catalog,
                                        java.lang.String schemaPattern,
                                        java.lang.String procedureNamePattern)
                                 throws java.sql.SQLException
```
    Gets a description of the stored procedures available in a catalog.
    Only procedure descriptions matching the schema and procedure name criteria are returned. They are ordered by PROCEDURE_SCHEM, and PROCEDURE_NAME.
    Each procedure description has the following columns:
    1. PROCEDURE_CAT String => procedure catalog (may be null)
    2. PROCEDURE_SCHEM String => procedure schema (may be null)
    3. PROCEDURE_NAME String => procedure name
    4. reserved for future use
    5. reserved for future use
    6. reserved for future use
    7. REMARKS String => explanatory comment on the procedure
    8. PROCEDURE_TYPE short => kind of procedure:
      
      procedureResultUnknown - May return a result
      procedureNoResult - Does not return a result
      procedureReturnsResult - Returns a result
    Specified by:
    
    getProcedures in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    procedureNamePattern - a procedure name pattern
    
    Returns:
    
    ResultSet - each row is a procedure description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
    
    See Also:
    
    getSearchStringEscape()
  - getProcedureColumns
```
public java.sql.ResultSet getProcedureColumns(java.lang.String catalog,
                                              java.lang.String schemaPattern,
                                              java.lang.String procedureNamePattern,
                                              java.lang.String columnNamePattern)
                                       throws java.sql.SQLException
```
    Gets a description of a catalog's stored procedure parameters and result columns.
    Only descriptions matching the schema, procedure and parameter name criteria are returned. They are ordered by PROCEDURE_SCHEM and PROCEDURE_NAME. Within this, the return value, if any, is first. Next are the parameter descriptions in call order. The column descriptions follow in column number order.
    Each row in the ResultSet is a parameter description or column description with the following fields:
    1. PROCEDURE_CAT String => procedure catalog (may be null)
    2. PROCEDURE_SCHEM String => procedure schema (may be null)
    3. PROCEDURE_NAME String => procedure name
    4. COLUMN_NAME String => column/parameter name
    5. COLUMN_TYPE Short => kind of column/parameter:
      
      procedureColumnUnknown - nobody knows
      procedureColumnIn - IN parameter
      procedureColumnInOut - INOUT parameter
      procedureColumnOut - OUT parameter
      procedureColumnReturn - procedure return value
      procedureColumnResult - result column in ResultSet
    6. DATA_TYPE short => SQL type from java.sql.Types
    7. TYPE_NAME String => SQL type name, for a UDT type the type name is fully qualified
    8. PRECISION int => precision
    9. LENGTH int => length in bytes of data
    10. SCALE short => scale
    11. RADIX short => radix
    12. NULLABLE short => can it contain NULL?
      
      procedureNoNulls - does not allow NULL values
      procedureNullable - allows NULL values
      procedureNullableUnknown - nullability unknown
    13. REMARKS String => comment describing parameter/column
    Note: Some databases may not return the column descriptions for a procedure. Additional columns beyond REMARKS can be defined by the database.
    Specified by:
    
    getProcedureColumns in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    procedureNamePattern - a procedure name pattern
    
    columnNamePattern - a column name pattern
    
    Returns:
    
    ResultSet - each row describes a stored procedure parameter or column
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
    
    See Also:
    
    getSearchStringEscape()
  - getTables
```
public java.sql.ResultSet getTables(java.lang.String catalog,
                                    java.lang.String schemaPattern,
                                    java.lang.String tableNamePattern,
                                    java.lang.String[] types)
                             throws java.sql.SQLException
```
    Gets a description of tables available in a catalog.
    Only table descriptions matching the catalog, schema, table name and type criteria are returned. They are ordered by TABLE_TYPE, TABLE_SCHEM and TABLE_NAME.
    Each table description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
    5. REMARKS String => explanatory comment on the table
    Note: Some databases may not return information for all tables.
    Specified by:
    
    getTables in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    tableNamePattern - a table name pattern
    
    types - a list of table types to include; null returns all types
    
    Returns:
    
    ResultSet - each row is a table description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
    
    See Also:
    
    getSearchStringEscape()
  - getSchemas
```
public java.sql.ResultSet getSchemas()
                              throws java.sql.SQLException
```
    Gets the schema names available in this database. The results are ordered by schema name.
    The schema column is:
    1. TABLE_SCHEM String => schema name
    Specified by:
    
    getSchemas in interface java.sql.DatabaseMetaData
    
    Returns:
    
    ResultSet - each row has a single String column that is a schema name
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
  - getCatalogs
```
public java.sql.ResultSet getCatalogs()
                               throws java.sql.SQLException
```
    Gets the catalog names available in this database. The results are ordered by catalog name.
    The catalog column is:
    1. TABLE_CAT String => catalog name
    Specified by:
    
    getCatalogs in interface java.sql.DatabaseMetaData
    
    Returns:
    
    ResultSet - each row has a single String column that is a catalog name
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
  - getTableTypes
```
public java.sql.ResultSet getTableTypes()
                                 throws java.sql.SQLException
```
    Gets the table types available in this database. The results are ordered by table type.
    The table type is:
    1. TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
    Specified by:
    
    getTableTypes in interface java.sql.DatabaseMetaData
    
    Returns:
    
    ResultSet - each row has a single String column that is a table type
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
  - getColumns
```
public java.sql.ResultSet getColumns(java.lang.String catalog,
                                     java.lang.String schemaPattern,
                                     java.lang.String tableNamePattern,
                                     java.lang.String columnNamePattern)
                              throws java.sql.SQLException
```
    Gets a description of table columns available in the specified catalog.
    Only column descriptions matching the catalog, schema, table and column name criteria are returned. They are ordered by TABLE_SCHEM, TABLE_NAME and ORDINAL_POSITION.
    Each column description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. COLUMN_NAME String => column name
    5. DATA_TYPE short => SQL type from java.sql.Types
    6. TYPE_NAME String => Data source dependent type name, for a UDT the type name is fully qualified
    7. COLUMN_SIZE int => column size. For char or date types this is the maximum number of characters, for numeric or decimal types this is precision.
    8. BUFFER_LENGTH is not used.
    9. DECIMAL_DIGITS int => the number of fractional digits
    10. NUM_PREC_RADIX int => Radix (typically either 10 or 2)
    11. NULLABLE int => is NULL allowed?
      
      columnNoNulls - might not allow NULL values
      columnNullable - definitely allows NULL values
      columnNullableUnknown - nullability unknown
    12. REMARKS String => comment describing column (may be null)
    13. COLUMN_DEF String => default value (may be null)
    14. SQL_DATA_TYPE int => unused
    15. SQL_DATETIME_SUB int => unused
    16. CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column
    17. ORDINAL_POSITION int => index of column in table (starting at 1)
    18. IS_NULLABLE String => "NO" means column definitely does not allow NULL values; "YES" means the column might allow NULL values. An empty string means nobody knows.
    Specified by:
    
    getColumns in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    tableNamePattern - a table name pattern
    
    columnNamePattern - a column name pattern
    
    Returns:
    
    ResultSet - each row is a column description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
    
    See Also:
    
    getSearchStringEscape()
  - getColumnPrivileges
```
public java.sql.ResultSet getColumnPrivileges(java.lang.String catalog,
                                              java.lang.String schema,
                                              java.lang.String table,
                                              java.lang.String columnNamePattern)
                                       throws java.sql.SQLException
```
    Gets a description of the access rights for a table's columns.
    Only privileges matching the column name criteria are returned. They are ordered by COLUMN_NAME and PRIVILEGE.
    Each privilege description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. COLUMN_NAME String => column name
    5. GRANTOR => grantor of access (may be null)
    6. GRANTEE String => grantee of access
    7. PRIVILEGE String => name of access (SELECT, INSERT, UPDATE, REFERENCES, ...)
    8. IS_GRANTABLE String => "YES" if grantee is permitted to grant to others; "NO" if not; null if unknown
    Specified by:
    
    getColumnPrivileges in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    columnNamePattern - a column name pattern
    
    Returns:
    
    ResultSet - each row is a column privilege description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
    
    See Also:
    
    getSearchStringEscape()
  - getTablePrivileges
```
public java.sql.ResultSet getTablePrivileges(java.lang.String catalog,
                                             java.lang.String schemaPattern,
                                             java.lang.String tableNamePattern)
                                      throws VirtuosoException
```
    Gets a description of the access rights for each table available in a catalog. Note that a table privilege applies to one or more columns in the table. It would be wrong to assume that this privilege applies to all columns (this may be true for some systems but is not true for all.)
    Only privileges matching the schema and table name criteria are returned. They are ordered by TABLE_SCHEM, TABLE_NAME, and PRIVILEGE.
    Each privilege description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. GRANTOR => grantor of access (may be null)
    5. GRANTEE String => grantee of access
    6. PRIVILEGE String => name of access (SELECT, INSERT, UPDATE, REFERENCES, ...)
    7. IS_GRANTABLE String => "YES" if grantee is permitted to grant to others; "NO" if not; null if unknown
    Specified by:
    
    getTablePrivileges in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    tableNamePattern - a table name pattern
    
    Returns:
    
    ResultSet - each row is a table privilege description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    See Also:
    
    getSearchStringEscape()
  - getBestRowIdentifier
```
public java.sql.ResultSet getBestRowIdentifier(java.lang.String catalog,
                                               java.lang.String schema,
                                               java.lang.String table,
                                               int scope,
                                               boolean nullable)
                                        throws VirtuosoException
```
    Gets a description of a table's optimal set of columns that uniquely identifies a row. They are ordered by SCOPE.
    Each column description has the following columns:
    1. SCOPE short => actual scope of result
      
      bestRowTemporary - very temporary, while using row
      bestRowTransaction - valid for remainder of current transaction
      bestRowSession - valid for remainder of current session
    2. COLUMN_NAME String => column name
    3. DATA_TYPE short => SQL data type from java.sql.Types
    4. TYPE_NAME String => Data source dependent type name, for a UDT the type name is fully qualified
    5. COLUMN_SIZE int => precision
    6. BUFFER_LENGTH int => not used
    7. DECIMAL_DIGITS short => scale
    8. PSEUDO_COLUMN short => is this a pseudo column like an Oracle ROWID
      
      bestRowUnknown - may or may not be pseudo column
      bestRowNotPseudo - is NOT a pseudo column
      bestRowPseudo - is a pseudo column
    Specified by:
    
    getBestRowIdentifier in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    scope - the scope of interest; use same values as SCOPE
    
    nullable - include columns that are nullable?
    
    Returns:
    
    ResultSet - each row is a column description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - getVersionColumns
```
public java.sql.ResultSet getVersionColumns(java.lang.String catalog,
                                            java.lang.String schema,
                                            java.lang.String table)
                                     throws VirtuosoException
```
    Gets a description of a table's columns that are automatically updated when any value in a row is updated. They are unordered.
    Each column description has the following columns:
    1. SCOPE short => is not used
    2. COLUMN_NAME String => column name
    3. DATA_TYPE short => SQL data type from java.sql.Types
    4. TYPE_NAME String => Data source dependent type name
    5. COLUMN_SIZE int => precision
    6. BUFFER_LENGTH int => length of column value in bytes
    7. DECIMAL_DIGITS short => scale
    8. PSEUDO_COLUMN short => is this a pseudo column like an Oracle ROWID
      
      versionColumnUnknown - may or may not be pseudo column
      versionColumnNotPseudo - is NOT a pseudo column
      versionColumnPseudo - is a pseudo column
    Specified by:
    
    getVersionColumns in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet - each row is a column description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - getPrimaryKeys
```
public java.sql.ResultSet getPrimaryKeys(java.lang.String catalog,
                                         java.lang.String schema,
                                         java.lang.String table)
                                  throws java.sql.SQLException
```
    Gets a description of a table's primary key columns. They are ordered by COLUMN_NAME.
    Each primary key column description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. COLUMN_NAME String => column name
    5. KEY_SEQ short => sequence number within primary key
    6. PK_NAME String => primary key name (may be null)
    Specified by:
    
    getPrimaryKeys in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet - each row is a primary key column description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
  - getImportedKeys
```
public java.sql.ResultSet getImportedKeys(java.lang.String catalog,
                                          java.lang.String schema,
                                          java.lang.String table)
                                   throws java.sql.SQLException
```
    Gets a description of the primary key columns that are referenced by a table's foreign key columns (the primary keys imported by a table). They are ordered by PKTABLE_CAT, PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ.
    Each primary key column description has the following columns:
    1. PKTABLE_CAT String => primary key table catalog being imported (may be null)
    2. PKTABLE_SCHEM String => primary key table schema being imported (may be null)
    3. PKTABLE_NAME String => primary key table name being imported
    4. PKCOLUMN_NAME String => primary key column name being imported
    5. FKTABLE_CAT String => foreign key table catalog (may be null)
    6. FKTABLE_SCHEM String => foreign key table schema (may be null)
    7. FKTABLE_NAME String => foreign key table name
    8. FKCOLUMN_NAME String => foreign key column name
    9. KEY_SEQ short => sequence number within foreign key
    10. UPDATE_RULE short => What happens to foreign key when primary is updated:
      
      importedNoAction - do not allow update of primary key if it has been imported
      importedKeyCascade - change imported key to agree with primary key update
      importedKeySetNull - change imported key to NULL if its primary key has been updated
      importedKeySetDefault - change imported key to default values if its primary key has been updated
      importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    11. DELETE_RULE short => What happens to the foreign key when primary is deleted.
      
      importedKeyNoAction - do not allow delete of primary key if it has been imported
      importedKeyCascade - delete rows that import a deleted key
      importedKeySetNull - change imported key to NULL if its primary key has been deleted
      importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
      importedKeySetDefault - change imported key to default if its primary key has been deleted
    12. FK_NAME String => foreign key name (may be null)
    13. PK_NAME String => primary key name (may be null)
    14. DEFERRABILITY short => can the evaluation of foreign key constraints be deferred until commit
      
      importedKeyInitiallyDeferred - see SQL92 for definition
      importedKeyInitiallyImmediate - see SQL92 for definition
      importedKeyNotDeferrable - see SQL92 for definition
    Specified by:
    
    getImportedKeys in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet - each row is a primary key column description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
    
    See Also:
    
    getExportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getExportedKeys
```
public java.sql.ResultSet getExportedKeys(java.lang.String catalog,
                                          java.lang.String schema,
                                          java.lang.String table)
                                   throws java.sql.SQLException
```
    Gets a description of the foreign key columns that reference a table's primary key columns (the foreign keys exported by a table). They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.
    Each foreign key column description has the following columns:
    1. PKTABLE_CAT String => primary key table catalog (may be null)
    2. PKTABLE_SCHEM String => primary key table schema (may be null)
    3. PKTABLE_NAME String => primary key table name
    4. PKCOLUMN_NAME String => primary key column name
    5. FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
    6. FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
    7. FKTABLE_NAME String => foreign key table name being exported
    8. FKCOLUMN_NAME String => foreign key column name being exported
    9. KEY_SEQ short => sequence number within foreign key
    10. UPDATE_RULE short => What happens to foreign key when primary is updated:
      
      importedNoAction - do not allow update of primary key if it has been imported
      importedKeyCascade - change imported key to agree with primary key update
      importedKeySetNull - change imported key to NULL if its primary key has been updated
      importedKeySetDefault - change imported key to default values if its primary key has been updated
      importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    11. DELETE_RULE short => What happens to the foreign key when primary is deleted.
      
      importedKeyNoAction - do not allow delete of primary key if it has been imported
      importedKeyCascade - delete rows that import a deleted key
      importedKeySetNull - change imported key to NULL if its primary key has been deleted *
      importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
      importedKeySetDefault - change imported key to default if its primary key has been deleted
    12. FK_NAME String => foreign key name (may be null)
    13. PK_NAME String => primary key name (may be null)
    14. DEFERRABILITY short => can the evaluation of foreign key constraints be deferred until commit
      
      importedKeyInitiallyDeferred - see SQL92 for definition
      importedKeyInitiallyImmediate - see SQL92 for definition
      importedKeyNotDeferrable - see SQL92 for definition
    Specified by:
    
    getExportedKeys in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet - each row is a foreign key column description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
    
    See Also:
    
    getImportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getCrossReference
```
public java.sql.ResultSet getCrossReference(java.lang.String primaryCatalog,
                                            java.lang.String primarySchema,
                                            java.lang.String primaryTable,
                                            java.lang.String foreignCatalog,
                                            java.lang.String foreignSchema,
                                            java.lang.String foreignTable)
                                     throws VirtuosoException
```
    Gets a description of the foreign key columns in the foreign key table that reference the primary key columns of the primary key table (describe how one table imports anothere is key.) This should normally return a single foreign key/primary key pair (most tables only import a foreign key from a table once.) They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.
    Each foreign key column description has the following columns:
    1. PKTABLE_CAT String => primary key table catalog (may be null)
    2. PKTABLE_SCHEM String => primary key table schema (may be null)
    3. PKTABLE_NAME String => primary key table name
    4. PKCOLUMN_NAME String => primary key column name
    5. FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
    6. FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
    7. FKTABLE_NAME String => foreign key table name being exported
    8. FKCOLUMN_NAME String => foreign key column name being exported
    9. KEY_SEQ short => sequence number within foreign key
    10. UPDATE_RULE short => What happens to foreign key when primary is updated:
      
      importedNoAction - do not allow update of primary key if it has been imported
      importedKeyCascade - change imported key to agree with primary key update
      importedKeySetNull - change imported key to NULL if its primary key has been updated
      importedKeySetDefault - change imported key to default values if its primary key has been updated
      importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    11. DELETE_RULE short => What happens to the foreign key when primary is deleted.
      
      importedKeyNoAction - do not allow delete of primary key if it has been imported
      importedKeyCascade - delete rows that import a deleted key
      importedKeySetNull - change imported key to NULL if its primary key has been deleted
      importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
      importedKeySetDefault - change imported key to default if its primary key has been deleted
    12. FK_NAME String => foreign key name (may be null)
    13. PK_NAME String => primary key name (may be null)
    14. DEFERRABILITY short => can the evaluation of foreign key constraints be deferred until commit
      
      importedKeyInitiallyDeferred - see SQL92 for definition
      importedKeyInitiallyImmediate - see SQL92 for definition
      importedKeyNotDeferrable - see SQL92 for definition
    Specified by:
    
    getCrossReference in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    primaryCatalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    primarySchema - a schema name; "" retrieves those without a schema
    
    primaryTable - the table name that exports the key
    
    foreignCatalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    foreignSchema - a schema name; "" retrieves those without a schema
    
    foreignTable - the table name that imports the key
    
    Returns:
    
    ResultSet - each row is a foreign key column description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    See Also:
    
    getImportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getTypeInfo
```
public java.sql.ResultSet getTypeInfo()
                               throws java.sql.SQLException
```
    Gets a description of all the standard SQL types supported by this database. They are ordered by DATA_TYPE and then by how closely the data type maps to the corresponding JDBC SQL type.
    Each type description has the following columns:
    1. TYPE_NAME String => Type name
    2. DATA_TYPE short => SQL data type from java.sql.Types
    3. PRECISION int => maximum precision
    4. LITERAL_PREFIX String => prefix used to quote a literal (may be null)
    5. LITERAL_SUFFIX String => suffix used to quote a literal (may be null)
    6. CREATE_PARAMS String => parameters used in creating the type (may be null)
    7. NULLABLE short => can you use NULL for this type?
      
      typeNoNulls - does not allow NULL values
      typeNullable - allows NULL values
      typeNullableUnknown - nullability unknown
    8. CASE_SENSITIVE boolean=> is it case sensitive?
    9. SEARCHABLE short => can you use "WHERE" based on this type:
      
      typePredNone - No support
      typePredChar - Only supported with WHERE .. LIKE
      typePredBasic - Supported except for WHERE .. LIKE
      typeSearchable - Supported for all WHERE ..
    10. UNSIGNED_ATTRIBUTE boolean => is it unsigned?
    11. FIXED_PREC_SCALE boolean => can it be a money value?
    12. AUTO_INCREMENT boolean => can it be used for an auto-increment value?
    13. LOCAL_TYPE_NAME String => localized version of type name (may be null)
    14. MINIMUM_SCALE short => minimum scale supported
    15. MAXIMUM_SCALE short => maximum scale supported
    16. SQL_DATA_TYPE int => unused
    17. SQL_DATETIME_SUB int => unused
    18. NUM_PREC_RADIX int => usually 2 or 10
    Specified by:
    
    getTypeInfo in interface java.sql.DatabaseMetaData
    
    Returns:
    
    ResultSet - each row is a SQL type description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    java.sql.SQLException
  - getIndexInfo
```
public java.sql.ResultSet getIndexInfo(java.lang.String catalog,
                                       java.lang.String schema,
                                       java.lang.String table,
                                       boolean unique,
                                       boolean approximate)
                                throws VirtuosoException
```
    Gets a description of a table's indices and statistics. They are ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION.
    Each index column description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. NON_UNIQUE boolean => Can index values be non-unique? false when TYPE is tableIndexStatistic
    5. INDEX_QUALIFIER String => index catalog (may be null); null when TYPE is tableIndexStatistic
    6. INDEX_NAME String => index name; null when TYPE is tableIndexStatistic
    7. TYPE short => index type:
      
      tableIndexStatistic - this identifies table statistics that are returned in conjunction with a table's index descriptions
      tableIndexClustered - this is a clustered index
      tableIndexHashed - this is a hashed index
      tableIndexOther - this is some other style of index
    8. ORDINAL_POSITION short => column sequence number within index; zero when TYPE is tableIndexStatistic
    9. COLUMN_NAME String => column name; null when TYPE is tableIndexStatistic
    10. ASC_OR_DESC String => column sort sequence, "A" => ascending, "D" => descending, may be null if sort sequence is not supported; null when TYPE is tableIndexStatistic
    11. CARDINALITY int => When TYPE is tableIndexStatistic, then this is the number of rows in the table; otherwise, it is the number of unique values in the index.
    12. PAGES int => When TYPE is tableIndexStatistic then this is the number of pages used for the table, otherwise it is the number of pages used for the current index.
    13. FILTER_CONDITION String => Filter condition, if any. (may be null)
    Specified by:
    
    getIndexInfo in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    unique - when true, return only indices for unique values; when false, return indices regardless of whether unique or not
    
    approximate - when true, result is allowed to reflect approximate or out of data values; when false, results are requested to be accurate
    
    Returns:
    
    ResultSet - each row is an index column description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - getConnection
```
public java.sql.Connection getConnection()
                                  throws VirtuosoException
```
    Retrieves the connection that produced this metadata object.
    
    Specified by:
    
    getConnection in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the connection that produced this metadata object
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - supportsResultSetType
```
public boolean supportsResultSetType(int type)
                              throws VirtuosoException
```
    Does the database support the given result set type?
    
    Specified by:
    
    supportsResultSetType in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - defined in java.sql.ResultSet
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - supportsResultSetConcurrency
```
public boolean supportsResultSetConcurrency(int type,
                                            int concurrency)
                                     throws VirtuosoException
```
    Does the database support the concurrency type in combination with the given result set type?
    
    Specified by:
    
    supportsResultSetConcurrency in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - defined in java.sql.ResultSet
    
    concurrency - type defined in java.sql.ResultSet
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    VirtuosoException - if a database access error occurs
    
    See Also:
    
    Connection
  - ownUpdatesAreVisible
```
public boolean ownUpdatesAreVisible(int type)
                             throws VirtuosoException
```
    Indicates whether a result set's own updates are visible.
    
    Specified by:
    
    ownUpdatesAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if updates are visible for the result set type; false otherwise
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - ownDeletesAreVisible
```
public boolean ownDeletesAreVisible(int type)
                             throws VirtuosoException
```
    Indicates whether a result set's own deletes are visible.
    
    Specified by:
    
    ownDeletesAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if deletes are visible for the result set type; false otherwise
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - ownInsertsAreVisible
```
public boolean ownInsertsAreVisible(int type)
                             throws VirtuosoException
```
    Indicates whether a result set's own inserts are visible.
    
    Specified by:
    
    ownInsertsAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if inserts are visible for the result set type; false otherwise
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - othersUpdatesAreVisible
```
public boolean othersUpdatesAreVisible(int type)
                                throws VirtuosoException
```
    Indicates whether updates made by others are visible.
    
    Specified by:
    
    othersUpdatesAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if updates made by others are visible for the result set type; false otherwise
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - othersDeletesAreVisible
```
public boolean othersDeletesAreVisible(int type)
                                throws VirtuosoException
```
    Indicates whether deletes made by others are visible.
    
    Specified by:
    
    othersDeletesAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if deletes made by others are visible for the result set type; false otherwise
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - othersInsertsAreVisible
```
public boolean othersInsertsAreVisible(int type)
                                throws VirtuosoException
```
    Indicates whether inserts made by others are visible.
    
    Specified by:
    
    othersInsertsAreVisible in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if updates are visible for the result set type
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - updatesAreDetected
```
public boolean updatesAreDetected(int type)
                           throws VirtuosoException
```
    Indicates whether or not a visible row update can be detected by calling the method ResultSet.rowUpdated.
    
    Specified by:
    
    updatesAreDetected in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if changes are detected by the result set type; false otherwise
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - deletesAreDetected
```
public boolean deletesAreDetected(int type)
                           throws VirtuosoException
```
    Indicates whether or not a visible row delete can be detected by calling ResultSet.rowDeleted(). If deletesAreDetected() returns false, then deleted rows are removed from the result set.
    
    Specified by:
    
    deletesAreDetected in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if changes are detected by the resultset type
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - insertsAreDetected
```
public boolean insertsAreDetected(int type)
                           throws VirtuosoException
```
    Indicates whether or not a visible row insert can be detected by calling ResultSet.rowInserted().
    
    Specified by:
    
    insertsAreDetected in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    type - set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if changes are detected by the resultset type
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - supportsBatchUpdates
```
public boolean supportsBatchUpdates()
                             throws VirtuosoException
```
    Indicates whether the driver supports batch updates.
    
    Specified by:
    
    supportsBatchUpdates in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if the driver supports batch updates; false otherwise
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - getUDTs
```
public java.sql.ResultSet getUDTs(java.lang.String catalog,
                                  java.lang.String schemaPattern,
                                  java.lang.String typeNamePattern,
                                  int[] types)
                           throws VirtuosoException
```
    Gets a description of the user-defined types defined in a particular schema. Schema-specific UDTs may have type JAVA_OBJECT, STRUCT, or DISTINCT.
    Only types matching the catalog, schema, type name and type criteria are returned. They are ordered by DATA_TYPE, TYPE_SCHEM and TYPE_NAME. The type name parameter may be a fully-qualified name. In this case, the catalog and schemaPattern parameters are ignored.
    Each type description has the following columns:
    1. TYPE_CAT String => the type's catalog (may be null)
    2. TYPE_SCHEM String => type's schema (may be null)
    3. TYPE_NAME String => type name
    4. CLASS_NAME String => Java class name
    5. DATA_TYPE String => type value defined in java.sql.Types. One of JAVA_OBJECT, STRUCT, or DISTINCT
    6. REMARKS String => explanatory comment on the type
    Note: If the driver does not support UDTs, an empty result set is returned.
    Specified by:
    
    getUDTs in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    typeNamePattern - a type name pattern; may be a fully-qualified name
    
    types - a list of user-named types to include (JAVA_OBJECT, STRUCT, or DISTINCT); null returns all types
    
    Returns:
    
    ResultSet - each row is a type description
    
    Throws:
    
    VirtuosoException - if a database access error occurs
  - supportsSavepoints
```
public boolean supportsSavepoints()
                           throws java.sql.SQLException
```
    Retrieves whether this database supports savepoints.
    
    Specified by:
    
    supportsSavepoints in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if savepoints are supported; false otherwise
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - supportsNamedParameters
```
public boolean supportsNamedParameters()
                                throws java.sql.SQLException
```
    Retrieves whether this database supports named parameters to callable statements.
    
    Specified by:
    
    supportsNamedParameters in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if named parameters are supported; false otherwise
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - supportsMultipleOpenResults
```
public boolean supportsMultipleOpenResults()
                                    throws java.sql.SQLException
```
    Retrieves whether it is possible to have multiple ResultSet objects returned from a CallableStatement object simultaneously.
    
    Specified by:
    
    supportsMultipleOpenResults in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if a CallableStatement object can return multiple ResultSet objects simultaneously; false otherwise
    
    Throws:
    
    java.sql.SQLException - if a datanase access error occurs
    
    Since:
    
    1.4
  - supportsGetGeneratedKeys
```
public boolean supportsGetGeneratedKeys()
                                 throws java.sql.SQLException
```
    Retrieves whether auto-generated keys can be retrieved after a statement has been executed.
    
    Specified by:
    
    supportsGetGeneratedKeys in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if auto-generated keys can be retrieved after a statement has executed; false otherwise
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - getSuperTypes
```
public java.sql.ResultSet getSuperTypes(java.lang.String catalog,
                                        java.lang.String schemaPattern,
                                        java.lang.String typeNamePattern)
                                 throws java.sql.SQLException
```
    Retrieves a description of the user-defined type (UDT) hierarchies defined in a particular schema in this database. Only the immediate super type/ sub type relationship is modeled.
    Only supertype information for UDTs matching the catalog, schema, and type name is returned. The type name parameter may be a fully-qualified name. When the UDT name supplied is a fully-qualified name, the catalog and schemaPattern parameters are ignored.
    If a UDT does not have a direct super type, it is not listed here. A row of the ResultSet object returned by this method describes the designated UDT and a direct supertype. A row has the following columns:
    1. TYPE_CAT String => the UDT's catalog (may be null)
    2. TYPE_SCHEM String => UDT's schema (may be null)
    3. TYPE_NAME String => type name of the UDT
    4. SUPERTYPE_CAT String => the direct super type's catalog (may be null)
    5. SUPERTYPE_SCHEM String => the direct super type's schema (may be null)
    6. SUPERTYPE_NAME String => the direct super type's name
    Note: If the driver does not support type hierarchies, an empty result set is returned.
    Specified by:
    
    getSuperTypes in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    typeNamePattern - a UDT name pattern; may be a fully-qualified name
    
    Returns:
    
    a ResultSet object in which a row gives information about the designated UDT
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - getSuperTables
```
public java.sql.ResultSet getSuperTables(java.lang.String catalog,
                                         java.lang.String schemaPattern,
                                         java.lang.String tableNamePattern)
                                  throws java.sql.SQLException
```
    Retrieves a description of the table hierarchies defined in a particular schema in this database.
    Only supertable information for tables matching the catalog, schema and table name are returned. The table name parameter may be a fully- qualified name, in which case, the catalog and schemaPattern parameters are ignored. If a table does not have a super table, it is not listed here. Supertables have to be defined in the same catalog and schema as the sub tables. Therefore, the type description does not need to include this information for the supertable.
    Each type description has the following columns:
    1. TABLE_CAT String => the type's catalog (may be null)
    2. TABLE_SCHEM String => type's schema (may be null)
    3. TABLE_NAME String => type name
    4. SUPERTABLE_NAME String => the direct super type's name
    Note: If the driver does not support type hierarchies, an empty result set is returned.
    Specified by:
    
    getSuperTables in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    tableNamePattern - a table name pattern; may be a fully-qualified name
    
    Returns:
    
    a ResultSet object in which each row is a type description
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - getAttributes
```
public java.sql.ResultSet getAttributes(java.lang.String catalog,
                                        java.lang.String schemaPattern,
                                        java.lang.String typeNamePattern,
                                        java.lang.String attributeNamePattern)
                                 throws java.sql.SQLException
```
    Retrieves a description of the given attribute of the given type for a user-defined type (UDT) that is available in the given schema and catalog.
    Descriptions are returned only for attributes of UDTs matching the catalog, schema, type, and attribute name criteria. They are ordered by TYPE_SCHEM, TYPE_NAME and ORDINAL_POSITION. This description does not contain inherited attributes.
    The ResultSet object that is returned has the following columns:
    1. TYPE_CAT String => type catalog (may be null)
    2. TYPE_SCHEM String => type schema (may be null)
    3. TYPE_NAME String => type name
    4. ATTR_NAME String => attribute name
    5. DATA_TYPE short => attribute type SQL type from java.sql.Types
    6. ATTR_TYPE_NAME String => Data source dependent type name. For a UDT, the type name is fully qualified. For a REF, the type name is fully qualified and represents the target type of the reference type.
    7. ATTR_SIZE int => column size. For char or date types this is the maximum number of characters; for numeric or decimal types this is precision.
    8. DECIMAL_DIGITS int => the number of fractional digits
    9. NUM_PREC_RADIX int => Radix (typically either 10 or 2)
    10. NULLABLE int => whether NULL is allowed
      
      attributeNoNulls - might not allow NULL values
      attributeNullable - definitely allows NULL values
      attributeNullableUnknown - nullability unknown
    11. REMARKS String => comment describing column (may be null)
    12. ATTR_DEF String => default value (may be null)
    13. SQL_DATA_TYPE int => unused
    14. SQL_DATETIME_SUB int => unused
    15. CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column
    16. ORDINAL_POSITION int => index of column in table (starting at 1)
    17. IS_NULLABLE String => "NO" means column definitely does not allow NULL values; "YES" means the column might allow NULL values. An empty string means unknown.
    18. SCOPE_CATALOG String => catalog of table that is the scope of a reference attribute (null if DATA_TYPE is not REF)
    19. SCOPE_SCHEMA String => schema of table that is the scope of a reference attribute (null if DATA_TYPE is not REF)
    20. SCOPE_TABLE String => table name that is the scope of a reference attribute (null if the DATA_TYPE is not REF)
    21. SOURCE_DATA_TYPE short => source type of a distinct type or user-generated Ref type,SQL type from java.sql.Types (null if DATA_TYPE is not DISTINCT or user-generated REF)
    Specified by:
    
    getAttributes in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means that the catalog name should not be used to narrow the search
    
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema; null means that the schema name should not be used to narrow the search
    
    typeNamePattern - a type name pattern; must match the type name as it is stored in the database
    
    attributeNamePattern - an attribute name pattern; must match the attribute name as it is declared in the database
    
    Returns:
    
    a ResultSet object in which each row is an attribute description
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - supportsResultSetHoldability
```
public boolean supportsResultSetHoldability(int holdability)
                                     throws java.sql.SQLException
```
    Retrieves whether this database supports the given result set holdability.
    
    Specified by:
    
    supportsResultSetHoldability in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    holdability - one of the following constants: ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
    
    See Also:
    
    Connection
  - getResultSetHoldability
```
public int getResultSetHoldability()
                            throws java.sql.SQLException
```
    Retrieves the default holdability of this ResultSet object.
    
    Specified by:
    
    getResultSetHoldability in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the default holdability; either ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - getDatabaseMajorVersion
```
public int getDatabaseMajorVersion()
                            throws java.sql.SQLException
```
    Retrieves the major version number of the underlying database.
    
    Specified by:
    
    getDatabaseMajorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the underlying database's major version
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - getDatabaseMinorVersion
```
public int getDatabaseMinorVersion()
                            throws java.sql.SQLException
```
    Retrieves the minor version number of the underlying database.
    
    Specified by:
    
    getDatabaseMinorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    underlying database's minor version
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - getJDBCMajorVersion
```
public int getJDBCMajorVersion()
                        throws java.sql.SQLException
```
    Retrieves the major JDBC version number for this driver.
    
    Specified by:
    
    getJDBCMajorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    JDBC version major number
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - getJDBCMinorVersion
```
public int getJDBCMinorVersion()
                        throws java.sql.SQLException
```
    Retrieves the minor JDBC version number for this driver.
    
    Specified by:
    
    getJDBCMinorVersion in interface java.sql.DatabaseMetaData
    
    Returns:
    
    JDBC version minor number
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - getSQLStateType
```
public int getSQLStateType()
                    throws java.sql.SQLException
```
    Indicates whether the SQLSTATEs returned by SQLException.getSQLState is X/Open (now known as Open Group) SQL CLI or SQL99.
    
    Specified by:
    
    getSQLStateType in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the type of SQLSTATEs, one of: sqlStateXOpen or sqlStateSQL99
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - locatorsUpdateCopy
```
public boolean locatorsUpdateCopy()
                           throws java.sql.SQLException
```
    Indicates whether updates made to a LOB are made on a copy or directly to the LOB.
    
    Specified by:
    
    locatorsUpdateCopy in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if updates are made to a copy of the LOB; false if updates are made directly to the LOB
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - supportsStatementPooling
```
public boolean supportsStatementPooling()
                                 throws java.sql.SQLException
```
    Retrieves weather this database supports statement pooling.
    
    Specified by:
    
    supportsStatementPooling in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true is so; false otherwise
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.4
  - getRowIdLifetime
```
public java.sql.RowIdLifetime getRowIdLifetime()
                                        throws java.sql.SQLException
```
    Indicates whether or not this data source supports the SQL ROWID type, and if so the lifetime for which a RowId object remains valid.
    The returned int values have the following relationship:
```
     ROWID_UNSUPPORTED < ROWID_VALID_OTHER < ROWID_VALID_TRANSACTION
         < ROWID_VALID_SESSION < ROWID_VALID_FOREVER
 
```
    so conditional logic such as
```
     if (metadata.getRowIdLifetime() > DatabaseMetaData.ROWID_VALID_TRANSACTION)
 
```
    can be used. Valid Forever means valid across all Sessions, and valid for a Session means valid across all its contained Transactions.
    Specified by:
    
    getRowIdLifetime in interface java.sql.DatabaseMetaData
    
    Returns:
    
    the status indicating the lifetime of a RowId
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.6
  - getSchemas
```
public java.sql.ResultSet getSchemas(java.lang.String catalog,
                                     java.lang.String schemaPattern)
                              throws java.sql.SQLException
```
    Retrieves the schema names available in this database. The results are ordered by TABLE_CATALOG and TABLE_SCHEM.
    The schema columns are:
    1. TABLE_SCHEM String => schema name
    2. TABLE_CATALOG String => catalog name (may be null)
    Specified by:
    
    getSchemas in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; must match the catalog name as it is stored in the database;"" retrieves those without a catalog; null means catalog name should not be used to narrow down the search.
    
    schemaPattern - a schema name; must match the schema name as it is stored in the database; null means schema name should not be used to narrow down the search.
    
    Returns:
    
    a ResultSet object in which each row is a schema description
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.6
    
    See Also:
    
    getSearchStringEscape()
  - supportsStoredFunctionsUsingCallSyntax
```
public boolean supportsStoredFunctionsUsingCallSyntax()
                                               throws java.sql.SQLException
```
    Retrieves whether this database supports invoking user-defined or vendor functions using the stored procedure escape syntax.
    
    Specified by:
    
    supportsStoredFunctionsUsingCallSyntax in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.6
  - autoCommitFailureClosesAllResultSets
```
public boolean autoCommitFailureClosesAllResultSets()
                                             throws java.sql.SQLException
```
    Retrieves whether a SQLException while autoCommit is true inidcates that all open ResultSets are closed, even ones that are holdable. When a SQLException occurs while autocommit is true, it is vendor specific whether the JDBC driver responds with a commit operation, a rollback operation, or by doing neither a commit nor a rollback. A potential result of this difference is in whether or not holdable ResultSets are closed.
    
    Specified by:
    
    autoCommitFailureClosesAllResultSets in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.6
  - getClientInfoProperties
```
public java.sql.ResultSet getClientInfoProperties()
                                           throws java.sql.SQLException
```
    Retrieves a list of the client info properties that the driver supports. The result set contains the following columns
    1. NAME String=> The name of the client info property
    2. MAX_LEN int=> The maximum length of the value for the property
    3. DEFAULT_VALUE String=> The default value of the property
    4. DESCRIPTION String=> A description of the property. This will typically contain information as to where this property is stored in the database.
    The ResultSet is sorted by the NAME column
    Specified by:
    
    getClientInfoProperties in interface java.sql.DatabaseMetaData
    
    Returns:
    
    A ResultSet object; each row is a supported client info property
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.6
  - getFunctions
```
public java.sql.ResultSet getFunctions(java.lang.String catalog,
                                       java.lang.String schemaPattern,
                                       java.lang.String functionNamePattern)
                                throws java.sql.SQLException
```
    Retrieves a description of the system and user functions available in the given catalog.
    Only system and user function descriptions matching the schema and function name criteria are returned. They are ordered by FUNCTION_CAT, FUNCTION_SCHEM, FUNCTION_NAME and SPECIFIC_ NAME.
    Each function description has the the following columns:
    1. FUNCTION_CAT String => function catalog (may be null)
    2. FUNCTION_SCHEM String => function schema (may be null)
    3. FUNCTION_NAME String => function name. This is the name used to invoke the function
    4. REMARKS String => explanatory comment on the function
    5. FUNCTION_TYPE short => kind of function:
      
      functionResultUnknown - Cannot determine if a return value or table will be returned
      functionNoTable- Does not return a table
      functionReturnsTable - Returns a table
    6. SPECIFIC_NAME String => the name which uniquely identifies this function within its schema. This is a user specified, or DBMS generated, name that may be different then the FUNCTION_NAME for example with overload functions
    A user may not have permission to execute any of the functions that are returned by getFunctions
    Specified by:
    
    getFunctions in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means that the catalog name should not be used to narrow the search
    
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema; null means that the schema name should not be used to narrow the search
    
    functionNamePattern - a function name pattern; must match the function name as it is stored in the database
    
    Returns:
    
    ResultSet - each row is a function description
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.6
    
    See Also:
    
    getSearchStringEscape()
  - getFunctionColumns
```
public java.sql.ResultSet getFunctionColumns(java.lang.String catalog,
                                             java.lang.String schemaPattern,
                                             java.lang.String functionNamePattern,
                                             java.lang.String columnNamePattern)
                                      throws java.sql.SQLException
```
    Retrieves a description of the given catalog's system or user function parameters and return type.
    Only descriptions matching the schema, function and parameter name criteria are returned. They are ordered by FUNCTION_CAT, FUNCTION_SCHEM, FUNCTION_NAME and SPECIFIC_ NAME. Within this, the return value, if any, is first. Next are the parameter descriptions in call order. The column descriptions follow in column number order.
    Each row in the ResultSet is a parameter description, column description or return type description with the following fields:
    1. FUNCTION_CAT String => function catalog (may be null)
    2. FUNCTION_SCHEM String => function schema (may be null)
    3. FUNCTION_NAME String => function name. This is the name used to invoke the function
    4. COLUMN_NAME String => column/parameter name
    5. COLUMN_TYPE Short => kind of column/parameter:
      
      functionColumnUnknown - nobody knows
      functionColumnIn - IN parameter
      functionColumnInOut - INOUT parameter
      functionColumnOut - OUT parameter
      functionColumnReturn - function return value
      functionColumnResult - Indicates that the parameter or column is a column in the ResultSet
    6. DATA_TYPE int => SQL type from java.sql.Types
    7. TYPE_NAME String => SQL type name, for a UDT type the type name is fully qualified
    8. PRECISION int => precision
    9. LENGTH int => length in bytes of data
    10. SCALE short => scale - null is returned for data types where SCALE is not applicable.
    11. RADIX short => radix
    12. NULLABLE short => can it contain NULL.
      
      functionNoNulls - does not allow NULL values
      functionNullable - allows NULL values
      functionNullableUnknown - nullability unknown
    13. REMARKS String => comment describing column/parameter
    14. CHAR_OCTET_LENGTH int => the maximum length of binary and character based parameters or columns. For any other datatype the returned value is a NULL
    15. ORDINAL_POSITION int => the ordinal position, starting from 1, for the input and output parameters. A value of 0 is returned if this row describes the function's return value. For result set columns, it is the ordinal position of the column in the result set starting from 1.
    16. IS_NULLABLE String => ISO rules are used to determine the nullability for a parameter or column.
      
      YES --- if the parameter or column can include NULLs
      NO --- if the parameter or column cannot include NULLs
      empty string --- if the nullability for the parameter or column is unknown
    17. SPECIFIC_NAME String => the name which uniquely identifies this function within its schema. This is a user specified, or DBMS generated, name that may be different then the FUNCTION_NAME for example with overload functions
    The PRECISION column represents the specified column size for the given parameter or column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
    Specified by:
    
    getFunctionColumns in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means that the catalog name should not be used to narrow the search
    
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema; null means that the schema name should not be used to narrow the search
    
    functionNamePattern - a procedure name pattern; must match the function name as it is stored in the database
    
    columnNamePattern - a parameter name pattern; must match the parameter or column name as it is stored in the database
    
    Returns:
    
    ResultSet - each row describes a user function parameter, column or return type
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.6
    
    See Also:
    
    getSearchStringEscape()
  - unwrap
```
public <T> T unwrap(java.lang.Class<T> iface)
             throws java.sql.SQLException
```
    Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy. If the receiver implements the interface then the result is the receiver or a proxy for the receiver. If the receiver is a wrapper and the wrapped object implements the interface then the result is the wrapped object or a proxy for the wrapped object. Otherwise return the the result of calling unwrap recursively on the wrapped object or a proxy for that result. If the receiver is not a wrapper and does not implement the interface, then an SQLException is thrown.
    
    Specified by:
    
    unwrap in interface java.sql.Wrapper
    
    Parameters:
    
    iface - A Class defining an interface that the result must implement.
    
    Returns:
    
    an object that implements the interface. May be a proxy for the actual implementing object.
    
    Throws:
    
    java.sql.SQLException - If no object found that implements the interface
    
    Since:
    
    1.6
  - isWrapperFor
```
public boolean isWrapperFor(java.lang.Class<?> iface)
                     throws java.sql.SQLException
```
    Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does. Returns false otherwise. If this implements the interface then return true, else if this is a wrapper then return the result of recursively calling isWrapperFor on the wrapped object. If this does not implement the interface and is not a wrapper, return false. This method should be implemented as a low-cost operation compared to unwrap so that callers can use this method to avoid expensive unwrap calls that may fail. If this method returns true then calling unwrap with the same argument should succeed.
    
    Specified by:
    
    isWrapperFor in interface java.sql.Wrapper
    
    Parameters:
    
    iface - a Class defining an interface.
    
    Returns:
    
    true if this implements the interface or directly or indirectly wraps an object that does.
    
    Throws:
    
    java.sql.SQLException - if an error occurs while determining whether this is a wrapper for an object with the given interface.
    
    Since:
    
    1.6
  - getPseudoColumns
```
public java.sql.ResultSet getPseudoColumns(java.lang.String catalog,
                                           java.lang.String schemaPattern,
                                           java.lang.String tableNamePattern,
                                           java.lang.String columnNamePattern)
                                    throws java.sql.SQLException
```
    Retrieves a description of the pseudo or hidden columns available in a given table within the specified catalog and schema. Pseudo or hidden columns may not always be stored within a table and are not visible in a ResultSet unless they are specified in the query's outermost SELECT list. Pseudo or hidden columns may not necessarily be able to be modified. If there are no pseudo or hidden columns, an empty ResultSet is returned.
    Only column descriptions matching the catalog, schema, table and column name criteria are returned. They are ordered by TABLE_CAT,TABLE_SCHEM, TABLE_NAME and COLUMN_NAME.
    Each column description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. COLUMN_NAME String => column name
    5. DATA_TYPE int => SQL type from java.sql.Types
    6. COLUMN_SIZE int => column size.
    7. DECIMAL_DIGITS int => the number of fractional digits. Null is returned for data types where DECIMAL_DIGITS is not applicable.
    8. NUM_PREC_RADIX int => Radix (typically either 10 or 2)
    9. COLUMN_USAGE String => The allowed usage for the column. The value returned will correspond to the enum name returned by PseudoColumnUsage#name
    10. REMARKS String => comment describing column (may be null)
    11. CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column
    12. IS_NULLABLE String => ISO rules are used to determine the nullability for a column.
      
      YES --- if the column can include NULLs
      NO --- if the column cannot include NULLs
      empty string --- if the nullability for the column is unknown
    The COLUMN_SIZE column specifies the column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
    Specified by:
    
    getPseudoColumns in interface java.sql.DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means that the catalog name should not be used to narrow the search
    
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema; null means that the schema name should not be used to narrow the search
    
    tableNamePattern - a table name pattern; must match the table name as it is stored in the database
    
    columnNamePattern - a column name pattern; must match the column name as it is stored in the database
    
    Returns:
    
    ResultSet - each row is a column description
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.7
  - generatedKeyAlwaysReturned
```
public boolean generatedKeyAlwaysReturned()
                                   throws java.sql.SQLException
```
    Retrieves whether a generated key will always be returned if the column name(s) or index(es) specified for the auto generated key column(s) are valid and the statement succeeds. The key that is returned may or may not be based on the column(s) for the auto generated key. Consult your JDBC driver documentation for additional details.
    
    Specified by:
    
    generatedKeyAlwaysReturned in interface java.sql.DatabaseMetaData
    
    Returns:
    
    true if so; false otherwise
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    Since:
    
    1.7

Class VirtuosoDatabaseMetaData

Field Summary

Fields inherited from interface java.sql.DatabaseMetaData

Method Summary

Methods inherited from interface java.sql.DatabaseMetaData

Methods inherited from class java.lang.Object

Field Detail

VARCHAR_UNSPEC_SIZE

getWideBestRowIdText_case0

getWideBestRowIdText_case2

getBestRowIdText_case0

getBestRowIdText_case2

getWideBestVersionColsText_case0

getWideBestVersionColsText_case2

getBestVersionColsText_case0

getBestVersionColsText_case2

fk_text_casemode_0

fk_text_casemode_2

fk_textw_casemode_0

fk_textw_casemode_2

sql_statistics_text_casemode_0

sql_statistics_text_casemode_2

sql_statistics_textw_casemode_0

sql_statistics_textw_casemode_2

Method Detail

getURL

getUserName

isReadOnly

nullsAreSortedHigh

nullsAreSortedLow

nullsAreSortedAtStart

nullsAreSortedAtEnd

getDatabaseProductName

getDatabaseProductVersion

getDriverName

getDriverVersion

getDriverMajorVersion

getDriverMinorVersion

usesLocalFiles

usesLocalFilePerTable

supportsMixedCaseIdentifiers

storesUpperCaseIdentifiers

storesLowerCaseIdentifiers

storesMixedCaseIdentifiers

supportsMixedCaseQuotedIdentifiers

storesUpperCaseQuotedIdentifiers

storesLowerCaseQuotedIdentifiers

storesMixedCaseQuotedIdentifiers

getIdentifierQuoteString

getSQLKeywords

getNumericFunctions

getStringFunctions

getSystemFunctions

getTimeDateFunctions

getSearchStringEscape

getExtraNameCharacters

supportsAlterTableWithAddColumn

supportsAlterTableWithDropColumn

supportsColumnAliasing

nullPlusNonNullIsNull

supportsConvert

supportsConvert

supportsTableCorrelationNames

supportsDifferentTableCorrelationNames

supportsExpressionsInOrderBy

supportsOrderByUnrelated

supportsGroupBy

supportsGroupByUnrelated

supportsGroupByBeyondSelect

supportsLikeEscapeClause

supportsMultipleResultSets

supportsMultipleTransactions

supportsNonNullableColumns

supportsMinimumSQLGrammar

supportsCoreSQLGrammar

supportsExtendedSQLGrammar

supportsANSI92EntryLevelSQL

supportsANSI92IntermediateSQL

supportsANSI92FullSQL

supportsIntegrityEnhancementFacility