DatabaseMetaData (Java 2 Platform SE 5.0) (original) (raw)

java.sql

Interface DatabaseMetaData

public interface DatabaseMetaData

Comprehensive information about the database as a whole.

This interface is implemented by driver vendors to let users know the capabilities of a Database Management System (DBMS) in combination with the driver based on JDBCTM technology ("JDBC driver") that is used with it. Different relational DBMSs often support different features, implement features in different ways, and use different data types. In addition, a driver may implement a feature on top of what the DBMS offers. Information returned by methods in this interface applies to the capabilities of a particular driver and a particular DBMS working together. Note that as used in this documentation, the term "database" is used generically to refer to both the driver and DBMS.

A user for this interface is commonly a tool that needs to discover how to deal with the underlying DBMS. This is especially true for applications that are intended to be used with more than one DBMS. For example, a tool might use the method getTypeInfo to find out what data types can be used in aCREATE TABLE statement. Or a user might call the methodsupportsCorrelatedSubqueries to see if it is possible to use a correlated subquery or supportsBatchUpdates to see if it is possible to use batch updates.

Some DatabaseMetaData methods return lists of information in the form of ResultSet objects. Regular ResultSet methods, such asgetString and getInt, can be used to retrieve the data from these ResultSet objects. If a given form of metadata is not available, the ResultSet getter methods throw an SQLException.

Some DatabaseMetaData methods take arguments that are String patterns. These arguments all have names such as fooPattern. Within a pattern String, "%" means match any substring of 0 or more characters, and "_" means match any one character. Only metadata entries matching the search pattern are returned. If a search pattern argument is set to null, that argument's criterion will be dropped from the search.

A method that gets information about a feature that the driver does not support will throw an SQLException. In the case of methods that return a ResultSet object, either a ResultSet object (which may be empty) is returned or an SQLException is thrown.

Field Summary
static short	attributeNoNulls Indicates that NULL values might not be allowed.
static short	attributeNullable Indicates that NULL values are definitely allowed.
static short	attributeNullableUnknown Indicates that whether NULL values are allowed is not known.
static int	bestRowNotPseudo Indicates that the best row identifier is NOT a pseudo column.
static int	bestRowPseudo Indicates that the best row identifier is a pseudo column.
static int	bestRowSession Indicates that the scope of the best row identifier is the remainder of the current session.
static int	bestRowTemporary Indicates that the scope of the best row identifier is very temporary, lasting only while the row is being used.
static int	bestRowTransaction Indicates that the scope of the best row identifier is the remainder of the current transaction.
static int	bestRowUnknown Indicates that the best row identifier may or may not be a pseudo column.
static int	columnNoNulls Indicates that the column might not allow NULL values.
static int	columnNullable Indicates that the column definitely allows NULL values.
static int	columnNullableUnknown Indicates that the nullability of columns is unknown.
static int	importedKeyCascade For the column UPDATE_RULE, indicates that when the primary key is updated, the foreign key (imported key) is changed to agree with it.
static int	importedKeyInitiallyDeferred Indicates deferrability.
static int	importedKeyInitiallyImmediate Indicates deferrability.
static int	importedKeyNoAction For the columns UPDATE_RULE and DELETE_RULE, indicates that if the primary key has been imported, it cannot be updated or deleted.
static int	importedKeyNotDeferrable Indicates deferrability.
static int	importedKeyRestrict For the column UPDATE_RULE, indicates that a primary key may not be updated if it has been imported by another table as a foreign key.
static int	importedKeySetDefault For the columns UPDATE_RULE and DELETE_RULE, indicates that if the primary key is updated or deleted, the foreign key (imported key) is set to the default value.
static int	importedKeySetNull For the columns UPDATE_RULE and DELETE_RULE, indicates that when the primary key is updated or deleted, the foreign key (imported key) is changed to NULL.
static int	procedureColumnIn Indicates that the column stores IN parameters.
static int	procedureColumnInOut Indicates that the column stores INOUT parameters.
static int	procedureColumnOut Indicates that the column stores OUT parameters.
static int	procedureColumnResult Indicates that the column stores results.
static int	procedureColumnReturn Indicates that the column stores return values.
static int	procedureColumnUnknown Indicates that type of the column is unknown.
static int	procedureNoNulls Indicates that NULL values are not allowed.
static int	procedureNoResult Indicates that the procedure does not return a result.
static int	procedureNullable Indicates that NULL values are allowed.
static int	procedureNullableUnknown Indicates that whether NULL values are allowed is unknown.
static int	procedureResultUnknown Indicates that it is not known whether the procedure returns a result.
static int	procedureReturnsResult Indicates that the procedure returns a result.
static int	sqlStateSQL99 Indicates that the value is an SQL99 SQLSTATE value.
static int	sqlStateXOpen Indicates that the value is an X/Open (now know as Open Group) SQL CLI SQLSTATE value.
static short	tableIndexClustered Indicates that this table index is a clustered index.
static short	tableIndexHashed Indicates that this table index is a hashed index.
static short	tableIndexOther Indicates that this table index is not a clustered index, a hashed index, or table statistics; it is something other than these.
static short	tableIndexStatistic Indicates that this column contains table statistics that are returned in conjunction with a table's index descriptions.
static int	typeNoNulls Indicates that a NULL value is NOT allowed for this data type.
static int	typeNullable Indicates that a NULL value is allowed for this data type.
static int	typeNullableUnknown Indicates that it is not known whether a NULL value is allowed for this data type.
static int	typePredBasic Indicates that one can base all WHERE search clauses except WHERE .
static int	typePredChar Indicates that the only WHERE search clause that can be based on this type is WHERE .
static int	typePredNone Indicates that WHERE search clauses are not supported for this type.
static int	typeSearchable Indicates that all WHERE search clauses can be based on this type.
static int	versionColumnNotPseudo Indicates that this version column is NOT a pseudo column.
static int	versionColumnPseudo Indicates that this version column is a pseudo column.
static int	versionColumnUnknown Indicates that this version column may or may not be a pseudo column.

Method Summary
boolean	allProceduresAreCallable() Retrieves whether the current user can call all the procedures returned by the method getProcedures.
boolean	allTablesAreSelectable() Retrieves whether the current user can use all the tables returned by the method getTables in a SELECT statement.
boolean	dataDefinitionCausesTransactionCommit() Retrieves whether a data definition statement within a transaction forces the transaction to commit.
boolean	dataDefinitionIgnoredInTransactions() Retrieves whether this database ignores a data definition statement within a transaction.
boolean	deletesAreDetected(int type) Retrieves whether or not a visible row delete can be detected by calling the method ResultSet.rowDeleted.
boolean	doesMaxRowSizeIncludeBlobs() Retrieves whether the return value for the method getMaxRowSize includes the SQL data types LONGVARCHAR and LONGVARBINARY.
ResultSet	[getAttributes](../../java/sql/DatabaseMetaData.html#getAttributes%28java.lang.String, java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schemaPattern,String typeNamePattern,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.
ResultSet	[getBestRowIdentifier](../../java/sql/DatabaseMetaData.html#getBestRowIdentifier%28java.lang.String, java.lang.String, java.lang.String, int, boolean%29)(String catalog,String schema,String table, int scope, boolean nullable) Retrieves a description of a table's optimal set of columns that uniquely identifies a row.
ResultSet	getCatalogs() Retrieves the catalog names available in this database.
String	getCatalogSeparator() Retrieves the String that this database uses as the separator between a catalog and table name.
String	getCatalogTerm() Retrieves the database vendor's preferred term for "catalog".
ResultSet	[getColumnPrivileges](../../java/sql/DatabaseMetaData.html#getColumnPrivileges%28java.lang.String, java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schema,String table,String columnNamePattern) Retrieves a description of the access rights for a table's columns.
ResultSet	[getColumns](../../java/sql/DatabaseMetaData.html#getColumns%28java.lang.String, java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schemaPattern,String tableNamePattern,String columnNamePattern) Retrieves a description of table columns available in the specified catalog.
Connection	getConnection() Retrieves the connection that produced this metadata object.
ResultSet	[getCrossReference](../../java/sql/DatabaseMetaData.html#getCrossReference%28java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String%29)(String primaryCatalog,String primarySchema,String primaryTable,String foreignCatalog,String foreignSchema,String foreignTable) Retrieves a description of the foreign key columns in the given foreign key table that reference the primary key columns of the given primary key table (describe how one table imports another's key).
int	getDatabaseMajorVersion() Retrieves the major version number of the underlying database.
int	getDatabaseMinorVersion() Retrieves the minor version number of the underlying database.
String	getDatabaseProductName() Retrieves the name of this database product.
String	getDatabaseProductVersion() Retrieves the version number of this database product.
int	getDefaultTransactionIsolation() Retrieves this database's default transaction isolation level.
int	getDriverMajorVersion() Retrieves this JDBC driver's major version number.
int	getDriverMinorVersion() Retrieves this JDBC driver's minor version number.
String	getDriverName() Retrieves the name of this JDBC driver.
String	getDriverVersion() Retrieves the version number of this JDBC driver as a String.
ResultSet	[getExportedKeys](../../java/sql/DatabaseMetaData.html#getExportedKeys%28java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schema,String table) Retrieves a description of the foreign key columns that reference the given table's primary key columns (the foreign keys exported by a table).
String	getExtraNameCharacters() Retrieves all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, A-Z, 0-9 and _).
String	getIdentifierQuoteString() Retrieves the string used to quote SQL identifiers.
ResultSet	[getImportedKeys](../../java/sql/DatabaseMetaData.html#getImportedKeys%28java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schema,String table) Retrieves a description of the primary key columns that are referenced by a table's foreign key columns (the primary keys imported by a table).
ResultSet	[getIndexInfo](../../java/sql/DatabaseMetaData.html#getIndexInfo%28java.lang.String, java.lang.String, java.lang.String, boolean, boolean%29)(String catalog,String schema,String table, boolean unique, boolean approximate) Retrieves a description of the given 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() Retrieves the maximum number of hex characters this database allows in an inline binary literal.
int	getMaxCatalogNameLength() Retrieves the maximum number of characters that this database allows in a catalog name.
int	getMaxCharLiteralLength() Retrieves the maximum number of characters this database allows for a character literal.
int	getMaxColumnNameLength() Retrieves the maximum number of characters this database allows for a column name.
int	getMaxColumnsInGroupBy() Retrieves the maximum number of columns this database allows in a GROUP BY clause.
int	getMaxColumnsInIndex() Retrieves the maximum number of columns this database allows in an index.
int	getMaxColumnsInOrderBy() Retrieves the maximum number of columns this database allows in an ORDER BY clause.
int	getMaxColumnsInSelect() Retrieves the maximum number of columns this database allows in a SELECT list.
int	getMaxColumnsInTable() Retrieves the maximum number of columns this database allows in a table.
int	getMaxConnections() Retrieves the maximum number of concurrent connections to this database that are possible.
int	getMaxCursorNameLength() Retrieves the maximum number of characters that this database allows in a cursor name.
int	getMaxIndexLength() Retrieves the maximum number of bytes this database allows for an index, including all of the parts of the index.
int	getMaxProcedureNameLength() Retrieves the maximum number of characters that this database allows in a procedure name.
int	getMaxRowSize() Retrieves the maximum number of bytes this database allows in a single row.
int	getMaxSchemaNameLength() Retrieves the maximum number of characters that this database allows in a schema name.
int	getMaxStatementLength() Retrieves the maximum number of characters this database allows in an SQL statement.
int	getMaxStatements() Retrieves the maximum number of active statements to this database that can be open at the same time.
int	getMaxTableNameLength() Retrieves the maximum number of characters this database allows in a table name.
int	getMaxTablesInSelect() Retrieves the maximum number of tables this database allows in aSELECT statement.
int	getMaxUserNameLength() Retrieves the maximum number of characters this database allows in a user name.
String	getNumericFunctions() Retrieves a comma-separated list of math functions available with this database.
ResultSet	[getPrimaryKeys](../../java/sql/DatabaseMetaData.html#getPrimaryKeys%28java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schema,String table) Retrieves a description of the given table's primary key columns.
ResultSet	[getProcedureColumns](../../java/sql/DatabaseMetaData.html#getProcedureColumns%28java.lang.String, java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schemaPattern,String procedureNamePattern,String columnNamePattern) Retrieves a description of the given catalog's stored procedure parameter and result columns.
ResultSet	[getProcedures](../../java/sql/DatabaseMetaData.html#getProcedures%28java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schemaPattern,String procedureNamePattern) Retrieves a description of the stored procedures available in the given catalog.
String	getProcedureTerm() Retrieves the database vendor's preferred term for "procedure".
int	getResultSetHoldability() Retrieves the default holdability of this ResultSet object.
ResultSet	getSchemas() Retrieves the schema names available in this database.
String	getSchemaTerm() Retrieves the database vendor's preferred term for "schema".
String	getSearchStringEscape() Retrieves the string that can be used to escape wildcard characters.
String	getSQLKeywords() Retrieves a comma-separated list of all of this database's SQL keywords that are NOT also SQL92 keywords.
int	getSQLStateType() Indicates whether the SQLSTATE returned by SQLException.getSQLState is X/Open (now known as Open Group) SQL CLI or SQL99.
String	getStringFunctions() Retrieves a comma-separated list of string functions available with this database.
ResultSet	[getSuperTables](../../java/sql/DatabaseMetaData.html#getSuperTables%28java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schemaPattern,String tableNamePattern) Retrieves a description of the table hierarchies defined in a particular schema in this database.
ResultSet	[getSuperTypes](../../java/sql/DatabaseMetaData.html#getSuperTypes%28java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schemaPattern,String typeNamePattern) Retrieves a description of the user-defined type (UDT) hierarchies defined in a particular schema in this database.
String	getSystemFunctions() Retrieves a comma-separated list of system functions available with this database.
ResultSet	[getTablePrivileges](../../java/sql/DatabaseMetaData.html#getTablePrivileges%28java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schemaPattern,String tableNamePattern) Retrieves a description of the access rights for each table available in a catalog.
ResultSet	[getTables](../../java/sql/DatabaseMetaData.html#getTables%28java.lang.String, java.lang.String, java.lang.String, java.lang.String[]%29)(String catalog,String schemaPattern,String tableNamePattern,String[] types) Retrieves a description of the tables available in the given catalog.
ResultSet	getTableTypes() Retrieves the table types available in this database.
String	getTimeDateFunctions() Retrieves a comma-separated list of the time and date functions available with this database.
ResultSet	getTypeInfo() Retrieves a description of all the standard SQL types supported by this database.
ResultSet	[getUDTs](../../java/sql/DatabaseMetaData.html#getUDTs%28java.lang.String, java.lang.String, java.lang.String, int[]%29)(String catalog,String schemaPattern,String typeNamePattern, int[] types) Retrieves a description of the user-defined types (UDTs) defined in a particular schema.
String	getURL() Retrieves the URL for this DBMS.
String	getUserName() Retrieves the user name as known to this database.
ResultSet	[getVersionColumns](../../java/sql/DatabaseMetaData.html#getVersionColumns%28java.lang.String, java.lang.String, java.lang.String%29)(String catalog,String schema,String table) Retrieves a description of a table's columns that are automatically updated when any value in a row is updated.
boolean	insertsAreDetected(int type) Retrieves whether or not a visible row insert can be detected by calling the method ResultSet.rowInserted.
boolean	isCatalogAtStart() Retrieves whether a catalog appears at the start of a fully qualified table name.
boolean	isReadOnly() Retrieves whether this database is in read-only mode.
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() Retrieves whether NULL values are sorted at the end regardless of sort order.
boolean	nullsAreSortedAtStart() Retrieves whether NULL values are sorted at the start regardless of sort order.
boolean	nullsAreSortedHigh() Retrieves whether NULL values are sorted high.
boolean	nullsAreSortedLow() Retrieves whether NULL values are sorted low.
boolean	othersDeletesAreVisible(int type) Retrieves whether deletes made by others are visible.
boolean	othersInsertsAreVisible(int type) Retrieves whether inserts made by others are visible.
boolean	othersUpdatesAreVisible(int type) Retrieves whether updates made by others are visible.
boolean	ownDeletesAreVisible(int type) Retrieves whether a result set's own deletes are visible.
boolean	ownInsertsAreVisible(int type) Retrieves whether a result set's own inserts are visible.
boolean	ownUpdatesAreVisible(int type) Retrieves whether for the given type of ResultSet object, the result set's own updates are visible.
boolean	storesLowerCaseIdentifiers() Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in lower case.
boolean	storesLowerCaseQuotedIdentifiers() Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in lower case.
boolean	storesMixedCaseIdentifiers() Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in mixed case.
boolean	storesMixedCaseQuotedIdentifiers() Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in mixed case.
boolean	storesUpperCaseIdentifiers() Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in upper case.
boolean	storesUpperCaseQuotedIdentifiers() Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in upper case.
boolean	supportsAlterTableWithAddColumn() Retrieves whether this database supports ALTER TABLE with add column.
boolean	supportsAlterTableWithDropColumn() Retrieves whether this database supports ALTER TABLE with drop column.
boolean	supportsANSI92EntryLevelSQL() Retrieves whether this database supports the ANSI92 entry level SQL grammar.
boolean	supportsANSI92FullSQL() Retrieves whether this database supports the ANSI92 full SQL grammar supported.
boolean	supportsANSI92IntermediateSQL() Retrieves whether this database supports the ANSI92 intermediate SQL grammar supported.
boolean	supportsBatchUpdates() Retrieves whether this database supports batch updates.
boolean	supportsCatalogsInDataManipulation() Retrieves whether a catalog name can be used in a data manipulation statement.
boolean	supportsCatalogsInIndexDefinitions() Retrieves whether a catalog name can be used in an index definition statement.
boolean	supportsCatalogsInPrivilegeDefinitions() Retrieves whether a catalog name can be used in a privilege definition statement.
boolean	supportsCatalogsInProcedureCalls() Retrieves whether a catalog name can be used in a procedure call statement.
boolean	supportsCatalogsInTableDefinitions() Retrieves whether a catalog name can be used in a table definition statement.
boolean	supportsColumnAliasing() Retrieves whether this database supports column aliasing.
boolean	supportsConvert() Retrieves whether this database supports the CONVERT function between SQL types.
boolean	[supportsConvert](../../java/sql/DatabaseMetaData.html#supportsConvert%28int, int%29)(int fromType, int toType) Retrieves whether this database supports the CONVERT for two given SQL types.
boolean	supportsCoreSQLGrammar() Retrieves whether this database supports the ODBC Core SQL grammar.
boolean	supportsCorrelatedSubqueries() Retrieves whether this database supports correlated subqueries.
boolean	supportsDataDefinitionAndDataManipulationTransactions() Retrieves whether this database supports both data definition and data manipulation statements within a transaction.
boolean	supportsDataManipulationTransactionsOnly() Retrieves whether this database supports only data manipulation statements within a transaction.
boolean	supportsDifferentTableCorrelationNames() Retrieves whether, when table correlation names are supported, they are restricted to being different from the names of the tables.
boolean	supportsExpressionsInOrderBy() Retrieves whether this database supports expressions in ORDER BY lists.
boolean	supportsExtendedSQLGrammar() Retrieves whether this database supports the ODBC Extended SQL grammar.
boolean	supportsFullOuterJoins() Retrieves whether this database supports full nested outer joins.
boolean	supportsGetGeneratedKeys() Retrieves whether auto-generated keys can be retrieved after a statement has been executed.
boolean	supportsGroupBy() Retrieves whether this database supports some form of GROUP BY clause.
boolean	supportsGroupByBeyondSelect() Retrieves whether this database supports using columns not included in the SELECT statement in a GROUP BY clause provided that all of the columns in the SELECT statement are included in the GROUP BY clause.
boolean	supportsGroupByUnrelated() Retrieves whether this database supports using a column that is not in the SELECT statement in aGROUP BY clause.
boolean	supportsIntegrityEnhancementFacility() Retrieves whether this database supports the SQL Integrity Enhancement Facility.
boolean	supportsLikeEscapeClause() Retrieves whether this database supports specifying aLIKE escape clause.
boolean	supportsLimitedOuterJoins() Retrieves whether this database provides limited support for outer joins.
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() Retrieves whether this database supports getting multiple ResultSet objects from a single call to the method execute.
boolean	supportsMultipleTransactions() Retrieves whether this database allows having 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() Retrieves whether this database supports keeping cursors open across commits.
boolean	supportsOpenCursorsAcrossRollback() Retrieves whether this database supports keeping cursors open across rollbacks.
boolean	supportsOpenStatementsAcrossCommit() Retrieves whether this database supports keeping statements open across commits.
boolean	supportsOpenStatementsAcrossRollback() Retrieves whether this database supports keeping statements open across rollbacks.
boolean	supportsOrderByUnrelated() Retrieves whether this database supports using a column that is not in the SELECT statement in anORDER BY clause.
boolean	supportsOuterJoins() Retrieves whether this database supports some form of outer join.
boolean	supportsPositionedDelete() Retrieves whether this database supports positioned DELETE statements.
boolean	supportsPositionedUpdate() Retrieves whether this database supports positioned UPDATE statements.
boolean	[supportsResultSetConcurrency](../../java/sql/DatabaseMetaData.html#supportsResultSetConcurrency%28int, int%29)(int type, int concurrency) Retrieves whether this database supports the given 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) Retrieves whether this database supports the given result set type.
boolean	supportsSavepoints() Retrieves whether this database supports savepoints.
boolean	supportsSchemasInDataManipulation() Retrieves whether a schema name can be used in a data manipulation statement.
boolean	supportsSchemasInIndexDefinitions() Retrieves whether a schema name can be used in an index definition statement.
boolean	supportsSchemasInPrivilegeDefinitions() Retrieves whether a schema name can be used in a privilege definition statement.
boolean	supportsSchemasInProcedureCalls() Retrieves whether a schema name can be used in a procedure call statement.
boolean	supportsSchemasInTableDefinitions() Retrieves whether a schema name can be used in a table definition statement.
boolean	supportsSelectForUpdate() Retrieves whether this database supports SELECT FOR UPDATE statements.
boolean	supportsStatementPooling() Retrieves whether this database supports statement pooling.
boolean	supportsStoredProcedures() Retrieves whether this database supports stored procedure calls that use the stored procedure escape syntax.
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 statements.
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) Retrieves whether this database supports the given transaction isolation level.
boolean	supportsTransactions() Retrieves whether this database supports transactions.
boolean	supportsUnion() Retrieves whether this database supports SQL UNION.
boolean	supportsUnionAll() Retrieves whether this database supports SQL UNION ALL.
boolean	updatesAreDetected(int type) Retrieves whether or not a visible row update can be detected by calling the method ResultSet.rowUpdated.
boolean	usesLocalFilePerTable() Retrieves whether this database uses a file for each table.
boolean	usesLocalFiles() Retrieves whether this database stores tables in a local file.

Field Detail

sqlStateXOpen

static final int sqlStateXOpen

Indicates that the value is an X/Open (now know as Open Group) SQL CLI SQLSTATE value.

A possible return value for the methodSQLException.getSQLState.

Since:

1.4

See Also:

Constant Field Values

sqlStateSQL99

static final int sqlStateSQL99

Indicates that the value is an SQL99 SQLSTATE value.

A possible return value for the methodSQLException.getSQLState.

Since:

1.4

See Also:

Constant Field Values

Method Detail

String getSearchStringEscape() throws SQLException

Retrieves the string that can be used to escape wildcard characters. This is the string that can be used to escape '_' or '%' in the catalog search parameters that are a pattern (and therefore use one of the wildcard characters).

The '_' character represents any single character; the '%' character represents any sequence of zero or more characters.

Returns:

the string used to escape wildcard characters

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

getExtraNameCharacters

String getExtraNameCharacters() throws SQLException

Retrieves all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, A-Z, 0-9 and _).

Returns:

the string containing the extra characters

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

supportsAlterTableWithAddColumn

boolean supportsAlterTableWithAddColumn() throws SQLException

Retrieves whether this database supports ALTER TABLE with add column.

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

supportsAlterTableWithDropColumn

boolean supportsAlterTableWithDropColumn() throws SQLException

Retrieves whether this database supports ALTER TABLE with drop column.

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

supportsColumnAliasing

boolean supportsColumnAliasing() throws SQLException

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.

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

nullPlusNonNullIsNull

boolean nullPlusNonNullIsNull() throws SQLException

Retrieves whether this database supports concatenations between NULL and non-NULL values being NULL.

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

supportsConvert

boolean supportsConvert() throws SQLException

Retrieves whether this database supports the CONVERT function between SQL types.

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

supportsConvert

boolean supportsConvert(int fromType, int toType) throws SQLException

Retrieves whether this database supports the CONVERT for two given SQL types.

Parameters:

fromType - the type to convert from; one of the type codes from the class java.sql.Types

toType - the type to convert to; one of the type codes from the class java.sql.Types

Connection

supportsTransactions

boolean supportsTransactions() throws SQLException

Retrieves whether this database supports transactions. If not, invoking the method commit is a noop, and the isolation level is TRANSACTION_NONE.

Returns:

true if transactions are supported; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

supportsTransactionIsolationLevel

boolean supportsTransactionIsolationLevel(int level) throws SQLException

Retrieves whether this database supports the given transaction isolation level.

Parameters:

level - one of the transaction isolation levels defined in java.sql.Connection

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

See Also:

Connection

supportsDataDefinitionAndDataManipulationTransactions

boolean supportsDataDefinitionAndDataManipulationTransactions() throws SQLException

Retrieves whether this database supports both data definition and data manipulation statements within a transaction.

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

supportsDataManipulationTransactionsOnly

boolean supportsDataManipulationTransactionsOnly() throws SQLException

Retrieves whether this database supports only data manipulation statements within a transaction.

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

dataDefinitionCausesTransactionCommit

boolean dataDefinitionCausesTransactionCommit() throws SQLException

Retrieves whether a data definition statement within a transaction forces the transaction to commit.

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

dataDefinitionIgnoredInTransactions

boolean dataDefinitionIgnoredInTransactions() throws SQLException

Retrieves whether this database ignores a data definition statement within a transaction.

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

getProcedures

ResultSet getProcedures(String catalog, String schemaPattern, String procedureNamePattern) throws SQLException

Retrieves a description of the stored procedures available in the given catalog.

Only procedure descriptions matching the schema and procedure name criteria are returned. They are ordered byPROCEDURE_SCHEM and PROCEDURE_NAME.

Each procedure description has the the following columns:

PROCEDURE_CAT String => procedure catalog (may be null)
PROCEDURE_SCHEM String => procedure schema (may be null)
PROCEDURE_NAME String => procedure name
reserved for future use
reserved for future use
reserved for future use
REMARKS String => explanatory comment on the procedure
PROCEDURE_TYPE short => kind of procedure:
- procedureResultUnknown - May return a result
- procedureNoResult - Does not return a result
- procedureReturnsResult - Returns a result

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

procedureNamePattern - a procedure name pattern; must match the procedure name as it is stored in the database

Returns:

ResultSet - each row is a procedure description

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

See Also:

getSearchStringEscape()

getProcedureColumns

ResultSet getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern) throws SQLException

Retrieves a description of the given catalog's stored procedure parameter 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:

PROCEDURE_CAT String => procedure catalog (may be null)
PROCEDURE_SCHEM String => procedure schema (may be null)
PROCEDURE_NAME String => procedure name
COLUMN_NAME String => column/parameter name
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
DATA_TYPE int => SQL type from java.sql.Types
TYPE_NAME String => SQL type name, for a UDT type the type name is fully qualified
PRECISION int => precision
LENGTH int => length in bytes of data
SCALE short => scale
RADIX short => radix
NULLABLE short => can it contain NULL.

procedureNoNulls - does not allow NULL values
procedureNullable - allows NULL values
procedureNullableUnknown - nullability unknown

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.

Parameters:

procedureNamePattern - a procedure name pattern; must match the procedure 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 describes a stored procedure parameter or column

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

See Also:

getSearchStringEscape()

getTables

ResultSet getTables(String catalog, String schemaPattern, String tableNamePattern, String[] types) throws SQLException

Retrieves a description of the tables available in the given 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:

TABLE_CAT String => table catalog (may be null)
TABLE_SCHEM String => table schema (may be null)
TABLE_NAME String => table name
TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
REMARKS String => explanatory comment on the table
TYPE_CAT String => the types catalog (may be null)
TYPE_SCHEM String => the types schema (may be null)
TYPE_NAME String => type name (may be null)
SELF_REFERENCING_COL_NAME String => name of the designated "identifier" column of a typed table (may be null)
REF_GENERATION String => specifies how values in SELF_REFERENCING_COL_NAME are created. Values are "SYSTEM", "USER", "DERIVED". (may be null)

Note: Some databases may not return information for all tables.

Parameters:

tableNamePattern - a table name pattern; must match the table name as it is stored in the database

types - a list of table types to include; null returns all types

Returns:

ResultSet - each row is a table description

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

See Also:

getSearchStringEscape()

getSchemas

ResultSet getSchemas() throws SQLException

Retrieves the schema names available in this database. The results are ordered by schema name.

The schema column is:

TABLE_SCHEM String => schema name
TABLE_CATALOG String => catalog name (may be null)

Returns:

a ResultSet object in which each row is a schema decription

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

getCatalogs

ResultSet getCatalogs() throws SQLException

Retrieves the catalog names available in this database. The results are ordered by catalog name.

The catalog column is:

TABLE_CAT String => catalog name

Returns:

a ResultSet object in which each row has a single String column that is a catalog name

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

getTableTypes

ResultSet getTableTypes() throws SQLException

Retrieves the table types available in this database. The results are ordered by table type.

The table type is:

TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".

Returns:

a ResultSet object in which each row has a single String column that is a table type

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

getColumns

ResultSet getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) throws SQLException

Retrieves 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 byTABLE_SCHEM, TABLE_NAME, and ORDINAL_POSITION.

Each column description has the following columns:

TABLE_CAT String => table catalog (may be null)
TABLE_SCHEM String => table schema (may be null)
TABLE_NAME String => table name
COLUMN_NAME String => column name
DATA_TYPE int => SQL type from java.sql.Types
TYPE_NAME String => Data source dependent type name, for a UDT the type name is fully qualified
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.
BUFFER_LENGTH is not used.
DECIMAL_DIGITS int => the number of fractional digits
NUM_PREC_RADIX int => Radix (typically either 10 or 2)
NULLABLE int => is NULL allowed.

columnNoNulls - might not allow NULL values
columnNullable - definitely allows NULL values
columnNullableUnknown - nullability unknown

REMARKS String => comment describing column (may be null)
COLUMN_DEF String => default value (may be null)
SQL_DATA_TYPE int => unused
SQL_DATETIME_SUB int => unused
CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column
ORDINAL_POSITION int => index of column in table (starting at 1)
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.
SCOPE_CATLOG String => catalog of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
SCOPE_SCHEMA String => schema of table that is the scope of a reference attribute (null if the DATA_TYPE isn't REF)
SCOPE_TABLE String => table name that this the scope of a reference attribure (null if the DATA_TYPE isn't REF)
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 isn't DISTINCT or user-generated REF)

Parameters:

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:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

See Also:

getSearchStringEscape()

getColumnPrivileges

ResultSet getColumnPrivileges(String catalog, String schema, String table, String columnNamePattern) throws SQLException

Retrieves 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 privilige description has the following columns:

TABLE_CAT String => table catalog (may be null)
TABLE_SCHEM String => table schema (may be null)
TABLE_NAME String => table name
COLUMN_NAME String => column name
GRANTOR => grantor of access (may be null)
GRANTEE String => grantee of access
PRIVILEGE String => name of access (SELECT, INSERT, UPDATE, REFRENCES, ...)
IS_GRANTABLE String => "YES" if grantee is permitted to grant to others; "NO" if not; null if unknown

Parameters:

schema - a schema name; 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

table - a table name; 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 privilege description

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

See Also:

getSearchStringEscape()

getTablePrivileges

ResultSet getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern) throws SQLException

Retrieves 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 privilige description has the following columns:

TABLE_CAT String => table catalog (may be null)
TABLE_SCHEM String => table schema (may be null)
TABLE_NAME String => table name
GRANTOR => grantor of access (may be null)
GRANTEE String => grantee of access
PRIVILEGE String => name of access (SELECT, INSERT, UPDATE, REFRENCES, ...)
IS_GRANTABLE String => "YES" if grantee is permitted to grant to others; "NO" if not; null if unknown

Parameters:

tableNamePattern - a table name pattern; must match the table name as it is stored in the database

Returns:

ResultSet - each row is a table privilege description

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

See Also:

getSearchStringEscape()

getBestRowIdentifier

ResultSet getBestRowIdentifier(String catalog, String schema, String table, int scope, boolean nullable) throws SQLException

Retrieves 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:

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
COLUMN_NAME String => column name
DATA_TYPE int => SQL data type from java.sql.Types
TYPE_NAME String => Data source dependent type name, for a UDT the type name is fully qualified
COLUMN_SIZE int => precision
BUFFER_LENGTH int => not used
DECIMAL_DIGITS short => scale
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

Parameters:

schema - a schema name; 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

table - a table name; must match the table name as it is stored in the database

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:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

getVersionColumns

ResultSet getVersionColumns(String catalog, String schema, String table) throws SQLException

Retrieves 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:

SCOPE short => is not used
COLUMN_NAME String => column name
DATA_TYPE int => SQL data type from java.sql.Types
TYPE_NAME String => Data source-dependent type name
COLUMN_SIZE int => precision
BUFFER_LENGTH int => length of column value in bytes
DECIMAL_DIGITS short => scale
PSEUDO_COLUMN short => whether this is 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

Parameters:

schema - a schema name; 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

table - a table name; must match the table name as it is stored in the database

Returns:

a ResultSet object in which each row is a column description

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

getPrimaryKeys

ResultSet getPrimaryKeys(String catalog, String schema, String table) throws SQLException

Retrieves a description of the given table's primary key columns. They are ordered by COLUMN_NAME.

Each primary key column description has the following columns:

TABLE_CAT String => table catalog (may be null)
TABLE_SCHEM String => table schema (may be null)
TABLE_NAME String => table name
COLUMN_NAME String => column name
KEY_SEQ short => sequence number within primary key
PK_NAME String => primary key name (may be null)

Parameters:

schema - a schema name; 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

table - a table name; must match the table name as it is stored in the database

Returns:

ResultSet - each row is a primary key column description

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

getImportedKeys

ResultSet getImportedKeys(String catalog, String schema, String table) throws SQLException

Retrieves 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:

PKTABLE_CAT String => primary key table catalog being imported (may be null)
PKTABLE_SCHEM String => primary key table schema being imported (may be null)
PKTABLE_NAME String => primary key table name being imported
PKCOLUMN_NAME String => primary key column name being imported
FKTABLE_CAT String => foreign key table catalog (may be null)
FKTABLE_SCHEM String => foreign key table schema (may be null)
FKTABLE_NAME String => foreign key table name
FKCOLUMN_NAME String => foreign key column name
KEY_SEQ short => sequence number within a foreign key
UPDATE_RULE short => What happens to a foreign key when the primary key 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)

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

FK_NAME String => foreign key name (may be null)
PK_NAME String => primary key name (may be null)
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

Parameters:

schema - a schema name; 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

table - a table name; must match the table name as it is stored in the database

Returns:

ResultSet - each row is a primary key column description

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

See Also:

[getExportedKeys(java.lang.String, java.lang.String, java.lang.String)](../../java/sql/DatabaseMetaData.html#getExportedKeys%28java.lang.String, java.lang.String, java.lang.String%29)

getExportedKeys

ResultSet getExportedKeys(String catalog, String schema, String table) throws SQLException

Retrieves a description of the foreign key columns that reference the given 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:

PKTABLE_CAT String => primary key table catalog (may be null)
PKTABLE_SCHEM String => primary key table schema (may be null)
PKTABLE_NAME String => primary key table name
PKCOLUMN_NAME String => primary key column name
FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
FKTABLE_NAME String => foreign key table name being exported
FKCOLUMN_NAME String => foreign key column name being exported
KEY_SEQ short => sequence number within foreign key
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)

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

FK_NAME String => foreign key name (may be null)
PK_NAME String => primary key name (may be null)
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

Parameters:

catalog - a catalog name; must match the catalog name as it is stored in this database; "" retrieves those without a catalog;null means that the catalog name should not be used to narrow the search

schema - a schema name; 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

table - a table name; must match the table name as it is stored in this database

Returns:

a ResultSet object in which each row is a foreign key column description

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

See Also:

[getImportedKeys(java.lang.String, java.lang.String, java.lang.String)](../../java/sql/DatabaseMetaData.html#getImportedKeys%28java.lang.String, java.lang.String, java.lang.String%29)

getCrossReference

ResultSet getCrossReference(String primaryCatalog, String primarySchema, String primaryTable, String foreignCatalog, String foreignSchema, String foreignTable) throws SQLException

Retrieves a description of the foreign key columns in the given foreign key table that reference the primary key columns of the given primary key table (describe how one table imports another's key). This should normally return a single foreign key/primary key pair because most tables import a foreign key from a table only once. They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.

Each foreign key column description has the following columns:

PKTABLE_CAT String => primary key table catalog (may be null)
PKTABLE_SCHEM String => primary key table schema (may be null)
PKTABLE_NAME String => primary key table name
PKCOLUMN_NAME String => primary key column name
FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
FKTABLE_NAME String => foreign key table name being exported
FKCOLUMN_NAME String => foreign key column name being exported
KEY_SEQ short => sequence number within foreign key
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)

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

FK_NAME String => foreign key name (may be null)
PK_NAME String => primary key name (may be null)
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

Parameters:

primaryCatalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means drop catalog name from the selection criteria

primarySchema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means drop schema name from the selection criteria

primaryTable - the name of the table that exports the key; must match the table name as it is stored in the database

foreignCatalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means drop catalog name from the selection criteria

foreignSchema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;null means drop schema name from the selection criteria

foreignTable - the name of the table that imports the key; must match the table name as it is stored in the database

Returns:

ResultSet - each row is a foreign key column description

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

See Also:

[getImportedKeys(java.lang.String, java.lang.String, java.lang.String)](../../java/sql/DatabaseMetaData.html#getImportedKeys%28java.lang.String, java.lang.String, java.lang.String%29)

getTypeInfo

ResultSet getTypeInfo() throws SQLException

Retrieves 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:

TYPE_NAME String => Type name
DATA_TYPE int => SQL data type from java.sql.Types
PRECISION int => maximum precision
LITERAL_PREFIX String => prefix used to quote a literal (may be null)
LITERAL_SUFFIX String => suffix used to quote a literal (may be null)
CREATE_PARAMS String => parameters used in creating the type (may be null)
NULLABLE short => can you use NULL for this type.
- typeNoNulls - does not allow NULL values
- typeNullable - allows NULL values
- typeNullableUnknown - nullability unknown
CASE_SENSITIVE boolean=> is it case sensitive.
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 ..
UNSIGNED_ATTRIBUTE boolean => is it unsigned.
FIXED_PREC_SCALE boolean => can it be a money value.
AUTO_INCREMENT boolean => can it be used for an auto-increment value.
LOCAL_TYPE_NAME String => localized version of type name (may be null)
MINIMUM_SCALE short => minimum scale supported
MAXIMUM_SCALE short => maximum scale supported
SQL_DATA_TYPE int => unused
SQL_DATETIME_SUB int => unused
NUM_PREC_RADIX int => usually 2 or 10

Returns:

a ResultSet object in which each row is an SQL type description

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

getIndexInfo

ResultSet getIndexInfo(String catalog, String schema, String table, boolean unique, boolean approximate) throws SQLException

Retrieves a description of the given 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:

TABLE_CAT String => table catalog (may be null)
TABLE_SCHEM String => table schema (may be null)
TABLE_NAME String => table name
NON_UNIQUE boolean => Can index values be non-unique. false when TYPE is tableIndexStatistic
INDEX_QUALIFIER String => index catalog (may be null); null when TYPE is tableIndexStatistic
INDEX_NAME String => index name; null when TYPE is tableIndexStatistic
TYPE short => index type:
- tableIndexStatistic - this identifies table statistics that are returned in conjuction 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
ORDINAL_POSITION short => column sequence number within index; zero when TYPE is tableIndexStatistic
COLUMN_NAME String => column name; null when TYPE is tableIndexStatistic
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
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.
PAGES int => When TYPE is tableIndexStatisic then this is the number of pages used for the table, otherwise it is the number of pages used for the current index.
FILTER_CONDITION String => Filter condition, if any. (may be null)

Parameters:

schema - a schema name; must match the schema name as it is stored in this database; "" retrieves those without a schema;null means that the schema name should not be used to narrow the search

table - a table name; must match the table name as it is stored in this database

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:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

supportsResultSetType

boolean supportsResultSetType(int type) throws SQLException

Retrieves whether this database supports the given result set type.

Parameters:

type - defined in java.sql.ResultSet

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

See Also:

Connection

supportsResultSetConcurrency

boolean supportsResultSetConcurrency(int type, int concurrency) throws SQLException

Retrieves whether this database supports the given concurrency type in combination with the given result set type.

Parameters:

type - defined in java.sql.ResultSet

concurrency - type defined in java.sql.ResultSet

Returns:

true if so; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

See Also:

Connection

ownUpdatesAreVisible

boolean ownUpdatesAreVisible(int type) throws SQLException

Retrieves whether for the given type of ResultSet object, the result set's own updates are visible.

Parameters:

type - the ResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE

Returns:

true if updates are visible for the given result set type;false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

ownDeletesAreVisible

boolean ownDeletesAreVisible(int type) throws SQLException

Retrieves whether a result set's own deletes are visible.

Parameters:

type - the ResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE

Returns:

true if deletes are visible for the given result set type;false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

ownInsertsAreVisible

boolean ownInsertsAreVisible(int type) throws SQLException

Retrieves whether a result set's own inserts are visible.

Parameters:

type - the ResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE

Returns:

true if inserts are visible for the given result set type;false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

othersUpdatesAreVisible

boolean othersUpdatesAreVisible(int type) throws SQLException

Retrieves whether updates made by others are visible.

Parameters:

type - the ResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE

Returns:

true if updates made by others are visible for the given result set type;false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

othersDeletesAreVisible

boolean othersDeletesAreVisible(int type) throws SQLException

Retrieves whether deletes made by others are visible.

Parameters:

type - the ResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE

Returns:

true if deletes made by others are visible for the given result set type;false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

othersInsertsAreVisible

boolean othersInsertsAreVisible(int type) throws SQLException

Retrieves whether inserts made by others are visible.

Parameters:

type - the ResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE

Returns:

true if inserts made by others are visible for the given result set type;false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

updatesAreDetected

boolean updatesAreDetected(int type) throws SQLException

Retrieves whether or not a visible row update can be detected by calling the method ResultSet.rowUpdated.

Parameters:

type - the ResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE

Returns:

true if changes are detected by the result set type;false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

deletesAreDetected

boolean deletesAreDetected(int type) throws SQLException

Retrieves whether or not a visible row delete can be detected by calling the method ResultSet.rowDeleted. If the methoddeletesAreDetected returns false, it means that deleted rows are removed from the result set.

Parameters:

type - the ResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE

Returns:

true if deletes are detected by the given result set type;false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

insertsAreDetected

boolean insertsAreDetected(int type) throws SQLException

Retrieves whether or not a visible row insert can be detected by calling the method ResultSet.rowInserted.

Parameters:

type - the ResultSet type; one ofResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE

Returns:

true if changes are detected by the specified result set type; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

supportsBatchUpdates

boolean supportsBatchUpdates() throws SQLException

Retrieves whether this database supports batch updates.

Returns:

true if this database supports batch upcates;false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

getUDTs

ResultSet getUDTs(String catalog, String schemaPattern, String typeNamePattern, int[] types) throws SQLException

Retrieves a description of the user-defined types (UDTs) 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:

TYPE_CAT String => the type's catalog (may be null)
TYPE_SCHEM String => type's schema (may be null)
TYPE_NAME String => type name
CLASS_NAME String => Java class name
DATA_TYPE int => type value defined in java.sql.Types. One of JAVA_OBJECT, STRUCT, or DISTINCT
REMARKS String => explanatory comment on the type
BASE_TYPE short => type code of the source type of a DISTINCT type or the type that implements the user-generated reference type of the SELF_REFERENCING_COLUMN of a structured type as defined in java.sql.Types (null if DATA_TYPE is not DISTINCT or not STRUCT with REFERENCE_GENERATION = USER_DEFINED)

Note: If the driver does not support UDTs, an empty result set is returned.

Parameters:

schemaPattern - a schema pattern name; 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; may be a fully qualified name

types - a list of user-defined types (JAVA_OBJECT, STRUCT, or DISTINCT) to include; null returns all types

Returns:

ResultSet object in which each row describes a UDT

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

getConnection

Connection getConnection() throws SQLException

Retrieves the connection that produced this metadata object.

Returns:

the connection that produced this metadata object

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.2

supportsSavepoints

boolean supportsSavepoints() throws SQLException

Retrieves whether this database supports savepoints.

Returns:

true if savepoints are supported; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

supportsNamedParameters

boolean supportsNamedParameters() throws SQLException

Retrieves whether this database supports named parameters to callable statements.

Returns:

true if named parameters are supported; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

supportsMultipleOpenResults

boolean supportsMultipleOpenResults() throws SQLException

Retrieves whether it is possible to have multiple ResultSet objects returned from a CallableStatement object simultaneously.

Returns:

true if a CallableStatement object can return multiple ResultSet objects simultaneously; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a datanase access error occurs

Since:

1.4

supportsGetGeneratedKeys

boolean supportsGetGeneratedKeys() throws SQLException

Retrieves whether auto-generated keys can be retrieved after a statement has been executed.

Returns:

true if auto-generated keys can be retrieved after a statement has executed; false otherwise

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

getSuperTypes

ResultSet getSuperTypes(String catalog, String schemaPattern, String typeNamePattern) throws 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:

TYPE_CAT String => the UDT's catalog (may be null)
TYPE_SCHEM String => UDT's schema (may be null)
TYPE_NAME String => type name of the UDT
SUPERTYPE_CAT String => the direct super type's catalog (may be null)
SUPERTYPE_SCHEM String => the direct super type's schema (may be null)
SUPERTYPE_NAME String => the direct super type's name

Note: If the driver does not support type hierarchies, an empty result set is returned.

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:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

getSuperTables

ResultSet getSuperTables(String catalog, String schemaPattern, String tableNamePattern) throws 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:

TABLE_CAT String => the type's catalog (may be null)
TABLE_SCHEM String => type's schema (may be null)
TABLE_NAME String => type name
SUPERTABLE_NAME String => the direct super type's name

Note: If the driver does not support type hierarchies, an empty result set is returned.

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:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

getAttributes

ResultSet getAttributes(String catalog, String schemaPattern, String typeNamePattern, String attributeNamePattern) throws 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:

TYPE_CAT String => type catalog (may be null)
TYPE_SCHEM String => type schema (may be null)
TYPE_NAME String => type name
ATTR_NAME String => attribute name
DATA_TYPE int => attribute type SQL type from java.sql.Types
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.
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.
DECIMAL_DIGITS int => the number of fractional digits
NUM_PREC_RADIX int => Radix (typically either 10 or 2)
NULLABLE int => whether NULL is allowed

attributeNoNulls - might not allow NULL values
attributeNullable - definitely allows NULL values
attributeNullableUnknown - nullability unknown

REMARKS String => comment describing column (may be null)
ATTR_DEF String => default value (may be null)
SQL_DATA_TYPE int => unused
SQL_DATETIME_SUB int => unused
CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column
ORDINAL_POSITION int => index of column in table (starting at 1)
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.
SCOPE_CATALOG String => catalog of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
SCOPE_SCHEMA String => schema of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
SCOPE_TABLE String => table name that is the scope of a reference attribute (null if the DATA_TYPE isn't REF)
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 isn't DISTINCT or user-generated REF)

Parameters:

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:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

supportsResultSetHoldability

boolean supportsResultSetHoldability(int holdability) throws SQLException

Retrieves whether this database supports the given result set holdability.

Parameters:

holdability - one of the following constants:ResultSet.HOLD_CURSORS_OVER_COMMIT orResultSet.CLOSE_CURSORS_AT_COMMIT` `

`**Returns:**`

`` `true` if so; `false` otherwise ``

`**Throws:** `

`` `[SQLException](../../java/sql/SQLException.html "class in java.sql")` - if a database access error occurs ``

`**Since:**`

`` `1.4

See Also:

Connection

` ``

``` `` ---

getResultSetHoldability

int getResultSetHoldability() throws SQLException

Retrieves the default holdability of this ResultSet object.

Returns:

the default holdability; either ResultSet.HOLD_CURSORS_OVER_COMMIT orResultSet.CLOSE_CURSORS_AT_COMMIT

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

getDatabaseMajorVersion

int getDatabaseMajorVersion() throws SQLException

Retrieves the major version number of the underlying database.

Returns:

the underlying database's major version

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

getDatabaseMinorVersion

int getDatabaseMinorVersion() throws SQLException

Retrieves the minor version number of the underlying database.

Returns:

underlying database's minor version

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

getJDBCMajorVersion

int getJDBCMajorVersion() throws SQLException

Retrieves the major JDBC version number for this driver.

Returns:

JDBC version major number

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

getJDBCMinorVersion

int getJDBCMinorVersion() throws SQLException

Retrieves the minor JDBC version number for this driver.

Returns:

JDBC version minor number

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

getSQLStateType

int getSQLStateType() throws SQLException

Indicates whether the SQLSTATE returned by SQLException.getSQLState is X/Open (now known as Open Group) SQL CLI or SQL99.

Returns:

the type of SQLSTATE; one of: sqlStateXOpen or sqlStateSQL99

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

locatorsUpdateCopy

boolean locatorsUpdateCopy() throws SQLException

Indicates whether updates made to a LOB are made on a copy or directly to the LOB.

Returns:

true if updates are made to a copy of the LOB;false if updates are made directly to the LOB

Throws:

[SQLException](../../java/sql/SQLException.html "class in java.sql") - if a database access error occurs

Since:

1.4

supportsStatementPooling

boolean supportsStatementPooling() throws SQLException

Retrieves whether this database supports statement pooling.

Returns:

true if so; false otherwise

Throws:

SQLExcpetion - if a database access error occurs

[SQLException](../../java/sql/SQLException.html "class in java.sql")

Since:

1.4

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`` ```