DatabaseMetaData (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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java.sql
Interface DatabaseMetaData

All Superinterfaces:: Wrapper

public interface DatabaseMetaData
extends Wrapper
extends Wrapper

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 JDBC^TM 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 a CREATE TABLE statement. Or a user might call the method supportsCorrelatedSubqueries 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 as getString and getInt, can be used to retrieve the data from these ResultSet objects. If a given form of metadata is not available, an empty ResultSet will be returned. Additional columns beyond the columns defined to be returned by the ResultSet object for a given method can be defined by the JDBC driver vendor and must be accessed by their column label.

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.

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 functionColumnIn
          Indicates that the parameter or column is an IN parameter.

static int functionColumnInOut
          Indicates that the parameter or column is an INOUT parameter.

static int functionColumnOut
          Indicates that the parameter or column is an OUT parameter.

static int functionColumnResult
          Indicates that the parameter or column is a column in a result set.

static int functionColumnUnknown
          Indicates that type of the parameter or column is unknown.

static int functionNoNulls
          Indicates that NULL values are not allowed.

static int functionNoTable
          Indicates that the function does not return a table.

static int functionNullable
          Indicates that NULL values are allowed.

static int functionNullableUnknown
          Indicates that whether NULL values are allowed is unknown.

static int functionResultUnknown
          Indicates that it is not known whether the function returns a result or a table.

static int functionReturn
          Indicates that the parameter or column is a return value.

static int functionReturnsTable
          Indicates that the function returns a table.

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 sqlStateSQL
          A possible return value for the method DatabaseMetaData.getSQLStateType which is used to indicate whether the value returned by the method SQLException.getSQLState is an SQLSTATE value.

static int sqlStateSQL99
          A possible return value for the method DatabaseMetaData.getSQLStateType which is used to indicate whether the value returned by the method SQLException.getSQLState is an SQL99 SQLSTATE value.

static int sqlStateXOpen
          A possible return value for the method DatabaseMetaData.getSQLStateType which is used to indicate whether the value returned by the method SQLException.getSQLState 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 the data type can be only be used in WHERE search clauses that do not use LIKE predicates.

static int typePredChar
          Indicates that the data type can be only be used in WHERE search clauses that use LIKE predicates.

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 autoCommitFailureClosesAllResultSets()
          Retrieves whether a SQLException while autoCommit is true inidcates that all open ResultSets are closed, even ones that are holdable.

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(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(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 getClientInfoProperties()
          Retrieves a list of the client info properties that the driver supports.

ResultSet getColumnPrivileges(String catalog, String schema, String table, String columnNamePattern)
          Retrieves a description of the access rights for a table's columns.

ResultSet getColumns(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(String parentCatalog, String parentSchema, String parentTable, 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 or the columns representing a unique constraint of the parent table (could be the same or a different table).

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(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 _).

ResultSet getFunctionColumns(String catalog, String schemaPattern, String functionNamePattern, String columnNamePattern)
          Retrieves a description of the given catalog's system or user function parameters and return type.

ResultSet getFunctions(String catalog, String schemaPattern, String functionNamePattern)
          Retrieves a description of the system and user functions available in the given catalog.

String getIdentifierQuoteString()
          Retrieves the string used to quote SQL identifiers.

ResultSet getImportedKeys(String catalog, String schema, String table)
          Retrieves a description of the primary key columns that are referenced by the given table's foreign key columns (the primary keys imported by a table).

ResultSet getIndexInfo(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 a SELECT 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(String catalog, String schema, String table)
          Retrieves a description of the given table's primary key columns.

ResultSet getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern)
          Retrieves a description of the given catalog's stored procedure parameter and result columns.

ResultSet getProcedures(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 this database's default holdability for ResultSet objects.

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.

ResultSet getSchemas()
          Retrieves the schema names available in this database.

ResultSet getSchemas(String catalog, String schemaPattern)
          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 SQL:2003 keywords.

int getSQLStateType()
          Indicates whether the SQLSTATE returned by SQLException.getSQLState is X/Open (now known as Open Group) SQL CLI or SQL:2003.

String getStringFunctions()
          Retrieves a comma-separated list of string functions available with this database.

ResultSet getSuperTables(String catalog, String schemaPattern, String tableNamePattern)
          Retrieves a description of the table hierarchies defined in a particular schema in this database.

ResultSet getSuperTypes(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(String catalog, String schemaPattern, String tableNamePattern)
          Retrieves a description of the access rights for each table available in a catalog.

ResultSet getTables(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 data types supported by this database.

ResultSet getUDTs(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(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 JDBC scalar function CONVERT for the conversion of one JDBC type to another.

boolean supportsConvert(int fromType, int toType)
          Retrieves whether this database supports the JDBC scalar function CONVERT for conversions between the JDBC types fromType and toType.

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 a GROUP BY clause.

boolean supportsIntegrityEnhancementFacility()
          Retrieves whether this database supports the SQL Integrity Enhancement Facility.

boolean supportsLikeEscapeClause()
          Retrieves whether this database supports specifying a LIKE 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 an ORDER 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(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 supportsStoredFunctionsUsingCallSyntax()
          Retrieves whether this database supports invoking user-defined or vendor functions using the stored procedure escape syntax.

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 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)
          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.

Methods inherited from interface java.sql.Wrapper

isWrapperFor, unwrap

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`	`functionColumnIn` Indicates that the parameter or column is an IN parameter.
`static int`	`functionColumnInOut` Indicates that the parameter or column is an INOUT parameter.
`static int`	`functionColumnOut` Indicates that the parameter or column is an OUT parameter.
`static int`	`functionColumnResult` Indicates that the parameter or column is a column in a result set.
`static int`	`functionColumnUnknown` Indicates that type of the parameter or column is unknown.
`static int`	`functionNoNulls` Indicates that `NULL` values are not allowed.
`static int`	`functionNoTable` Indicates that the function does not return a table.
`static int`	`functionNullable` Indicates that `NULL` values are allowed.
`static int`	`functionNullableUnknown` Indicates that whether `NULL` values are allowed is unknown.
`static int`	`functionResultUnknown` Indicates that it is not known whether the function returns a result or a table.
`static int`	`functionReturn` Indicates that the parameter or column is a return value.
`static int`	`functionReturnsTable` Indicates that the function returns a table.
`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`	`sqlStateSQL` A possible return value for the method `DatabaseMetaData.getSQLStateType` which is used to indicate whether the value returned by the method `SQLException.getSQLState` is an SQLSTATE value.
`static int`	`sqlStateSQL99` A possible return value for the method `DatabaseMetaData.getSQLStateType` which is used to indicate whether the value returned by the method `SQLException.getSQLState` is an SQL99 SQLSTATE value.
`static int`	`sqlStateXOpen` A possible return value for the method `DatabaseMetaData.getSQLStateType` which is used to indicate whether the value returned by the method `SQLException.getSQLState` 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 the data type can be only be used in `WHERE` search clauses that do not use `LIKE` predicates.
`static int`	`typePredChar` Indicates that the data type can be only be used in `WHERE` search clauses that use `LIKE` predicates.
`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`	`autoCommitFailureClosesAllResultSets()` Retrieves whether a `SQLException` while autoCommit is `true` inidcates that all open ResultSets are closed, even ones that are holdable.
`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(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(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`	`getClientInfoProperties()` Retrieves a list of the client info properties that the driver supports.
`ResultSet`	`getColumnPrivileges(String catalog, String schema, String table, String columnNamePattern)` Retrieves a description of the access rights for a table's columns.
`ResultSet`	`getColumns(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(String parentCatalog, String parentSchema, String parentTable, 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 or the columns representing a unique constraint of the parent table (could be the same or a different table).
`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(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 _).
`ResultSet`	`getFunctionColumns(String catalog, String schemaPattern, String functionNamePattern, String columnNamePattern)` Retrieves a description of the given catalog's system or user function parameters and return type.
`ResultSet`	`getFunctions(String catalog, String schemaPattern, String functionNamePattern)` Retrieves a description of the system and user functions available in the given catalog.
`String`	`getIdentifierQuoteString()` Retrieves the string used to quote SQL identifiers.
`ResultSet`	`getImportedKeys(String catalog, String schema, String table)` Retrieves a description of the primary key columns that are referenced by the given table's foreign key columns (the primary keys imported by a table).
`ResultSet`	`getIndexInfo(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 a `SELECT` 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(String catalog, String schema, String table)` Retrieves a description of the given table's primary key columns.
`ResultSet`	`getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern)` Retrieves a description of the given catalog's stored procedure parameter and result columns.
`ResultSet`	`getProcedures(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 this database's default holdability for `ResultSet` objects.
`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.
`ResultSet`	`getSchemas()` Retrieves the schema names available in this database.
`ResultSet`	`getSchemas(String catalog, String schemaPattern)` 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 SQL:2003 keywords.
`int`	`getSQLStateType()` Indicates whether the SQLSTATE returned by `SQLException.getSQLState` is X/Open (now known as Open Group) SQL CLI or SQL:2003.
`String`	`getStringFunctions()` Retrieves a comma-separated list of string functions available with this database.
`ResultSet`	`getSuperTables(String catalog, String schemaPattern, String tableNamePattern)` Retrieves a description of the table hierarchies defined in a particular schema in this database.
`ResultSet`	`getSuperTypes(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(String catalog, String schemaPattern, String tableNamePattern)` Retrieves a description of the access rights for each table available in a catalog.
`ResultSet`	`getTables(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 data types supported by this database.
`ResultSet`	`getUDTs(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(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 JDBC scalar function `CONVERT` for the conversion of one JDBC type to another.
`boolean`	`supportsConvert(int fromType, int toType)` Retrieves whether this database supports the JDBC scalar function `CONVERT` for conversions between the JDBC types fromType and toType.
`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 a `GROUP BY` clause.
`boolean`	`supportsIntegrityEnhancementFacility()` Retrieves whether this database supports the SQL Integrity Enhancement Facility.
`boolean`	`supportsLikeEscapeClause()` Retrieves whether this database supports specifying a `LIKE` 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 an `ORDER 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(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`	`supportsStoredFunctionsUsingCallSyntax()` Retrieves whether this database supports invoking user-defined or vendor functions using the stored procedure escape syntax.
`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` 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)` 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.

Methods inherited from interface java.sql.Wrapper
`isWrapperFor, unwrap`

Field Detail

procedureResultUnknown

static final int procedureResultUnknown

Indicates that it is not known whether the procedure returns a result.

A possible value for column PROCEDURE_TYPE in the ResultSet object returned by the method getProcedures.

See Also:: Constant Field Values

procedureNoResult

static final int procedureNoResult

Indicates that the procedure does not return a result.

A possible value for column PROCEDURE_TYPE in the ResultSet object returned by the method getProcedures.

See Also:: Constant Field Values

procedureReturnsResult

static final int procedureReturnsResult

Indicates that the procedure returns a result.

A possible value for column PROCEDURE_TYPE in the ResultSet object returned by the method getProcedures.

See Also:: Constant Field Values