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java.sql.DatabaseMetaData

java.sql.DatabaseMetaData是数据库对象定义接口。

表 1 对java.sql.DatabaseMetaData的支持情况

方法名

返回值类型

支持JDBC 4

getTables(String catalog, String schemaPattern, String tableNamePattern, String[] types)

ResultSet

Yes

getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern)

ResultSet

Yes

getTableTypes()

ResultSet

Yes

getUserName()

String

Yes

isReadOnly()

boolean

Yes

nullsAreSortedHigh()

boolean

Yes

nullsAreSortedLow()

boolean

Yes

nullsAreSortedAtStart()

boolean

Yes

nullsAreSortedAtEnd()

boolean

Yes

getDatabaseProductName()

String

Yes

getDatabaseProductVersion()

String

Yes

getDriverName()

String

Yes

getDriverVersion()

String

Yes

getDriverMajorVersion()

int

Yes

getDriverMinorVersion()

int

Yes

usesLocalFiles()

boolean

Yes

usesLocalFilePerTable()

boolean

Yes

supportsMixedCaseIdentifiers()

boolean

Yes

storesUpperCaseIdentifiers()

boolean

Yes

storesLowerCaseIdentifiers()

boolean

Yes

supportsMixedCaseQuotedIdentifiers()

boolean

Yes

storesUpperCaseQuotedIdentifiers()

boolean

Yes

storesLowerCaseQuotedIdentifiers()

boolean

Yes

storesMixedCaseQuotedIdentifiers()

boolean

Yes

supportsAlterTableWithAddColumn()

boolean

Yes

supportsAlterTableWithDropColumn()

boolean

Yes

supportsColumnAliasing()

boolean

Yes

nullPlusNonNullIsNull()

boolean

Yes

supportsConvert()

boolean

Yes

supportsConvert(int fromType, int toType)

boolean

Yes

supportsTableCorrelationNames()

boolean

Yes

supportsDifferentTableCorrelationNames()

boolean

Yes

supportsExpressionsInOrderBy()

boolean

Yes

supportsOrderByUnrelated()

boolean

Yes

supportsGroupBy()

boolean

Yes

supportsGroupByUnrelated()

boolean

Yes

supportsGroupByBeyondSelect()

boolean

Yes

supportsLikeEscapeClause()

boolean

Yes

supportsMultipleResultSets()

boolean

Yes

supportsMultipleTransactions()

boolean

Yes

supportsNonNullableColumns()

boolean

Yes

supportsMinimumSQLGrammar()

boolean

Yes

supportsCoreSQLGrammar()

boolean

Yes

supportsExtendedSQLGrammar()

boolean

Yes

supportsANSI92EntryLevelSQL()

boolean

Yes

supportsANSI92IntermediateSQL()

boolean

Yes

supportsANSI92FullSQL()

boolean

Yes

supportsIntegrityEnhancementFacility()

boolean

Yes

supportsOuterJoins()

boolean

Yes

supportsFullOuterJoins()

boolean

Yes

supportsLimitedOuterJoins()

boolean

Yes

isCatalogAtStart()

boolean

Yes

supportsSchemasInDataManipulation()

boolean

Yes

supportsSavepoints()

boolean

Yes

supportsResultSetHoldability(int holdability)

boolean

Yes

getResultSetHoldability()

int

Yes

getDatabaseMajorVersion()

int

Yes

getDatabaseMinorVersion()

int

Yes

getJDBCMajorVersion()

int

Yes

getJDBCMinorVersion()

int

Yes

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