JdbcDatabaseMetaData (H2 Database Engine wt-1.0.1 API)

java.lang.Object
- org.h2.message.TraceObject
- - org.h2.jdbc.JdbcDatabaseMetaData

所有已实现的接口:

DatabaseMetaData, Wrapper, JdbcDatabaseMetaDataBackwardsCompat
```
public class JdbcDatabaseMetaData
extends TraceObject
implements DatabaseMetaData, JdbcDatabaseMetaDataBackwardsCompat
```
Represents the meta data for a database.

字段概要
- 从类继承的字段 org.h2.message.TraceObject
  ARRAY, BLOB, CALLABLE_STATEMENT, CLOB, CONNECTION, DATA_SOURCE, DATABASE_META_DATA, PARAMETER_META_DATA, PREPARED_STATEMENT, RESULT_SET, RESULT_SET_META_DATA, SAVEPOINT, STATEMENT, trace, XA_DATA_SOURCE, XID
- 从接口继承的字段 java.sql.DatabaseMetaData
  attributeNoNulls, attributeNullable, attributeNullableUnknown, bestRowNotPseudo, bestRowPseudo, bestRowSession, bestRowTemporary, bestRowTransaction, bestRowUnknown, columnNoNulls, columnNullable, columnNullableUnknown, functionColumnIn, functionColumnInOut, functionColumnOut, functionColumnResult, functionColumnUnknown, functionNoNulls, functionNoTable, functionNullable, functionNullableUnknown, functionResultUnknown, functionReturn, functionReturnsTable, importedKeyCascade, importedKeyInitiallyDeferred, importedKeyInitiallyImmediate, importedKeyNoAction, importedKeyNotDeferrable, importedKeyRestrict, importedKeySetDefault, importedKeySetNull, procedureColumnIn, procedureColumnInOut, procedureColumnOut, procedureColumnResult, procedureColumnReturn, procedureColumnUnknown, procedureNoNulls, procedureNoResult, procedureNullable, procedureNullableUnknown, procedureResultUnknown, procedureReturnsResult, sqlStateSQL, sqlStateSQL99, sqlStateXOpen, tableIndexClustered, tableIndexHashed, tableIndexOther, tableIndexStatistic, typeNoNulls, typeNullable, typeNullableUnknown, typePredBasic, typePredChar, typePredNone, typeSearchable, versionColumnNotPseudo, versionColumnPseudo, versionColumnUnknown

方法概要

所有方法实例方法具体方法
限定符和类型	方法和说明
`boolean`	`allProceduresAreCallable()` Checks if all procedures callable.
`boolean`	`allTablesAreSelectable()` Checks if it possible to query all tables returned by getTables.
`boolean`	`autoCommitFailureClosesAllResultSets()` Returns whether an exception while auto commit is on closes all result sets.
`boolean`	`dataDefinitionCausesTransactionCommit()` Returns whether CREATE/DROP commit an open transaction.
`boolean`	`dataDefinitionIgnoredInTransactions()` Returns whether CREATE/DROP do not affect transactions.
`boolean`	`deletesAreDetected(int type)` Returns whether deletes are detected.
`boolean`	`doesMaxRowSizeIncludeBlobs()` Returns whether the maximum row size includes blobs.
`boolean`	`generatedKeyAlwaysReturned()` [Not supported]
`ResultSet`	`getAttributes(String catalog, String schemaPattern, String typeNamePattern, String attributeNamePattern)` [Not supported]
`ResultSet`	`getBestRowIdentifier(String catalogPattern, String schemaPattern, String tableName, int scope, boolean nullable)` Gets the list of columns that best identifier a row in a table.
`ResultSet`	`getCatalogs()` Gets the list of catalogs.
`String`	`getCatalogSeparator()` Returns the catalog separator.
`String`	`getCatalogTerm()` Returns the term for "catalog".
`ResultSet`	`getClientInfoProperties()`
`ResultSet`	`getColumnPrivileges(String catalogPattern, String schemaPattern, String table, String columnNamePattern)` Gets the list of column privileges.
`ResultSet`	`getColumns(String catalogPattern, String schemaPattern, String tableNamePattern, String columnNamePattern)` Gets the list of columns.
`Connection`	`getConnection()` Returns the connection that created this object.
`ResultSet`	`getCrossReference(String primaryCatalogPattern, String primarySchemaPattern, String primaryTable, String foreignCatalogPattern, String foreignSchemaPattern, String foreignTable)` Gets the list of foreign key columns that references a table, as well as the list of primary key columns that are references by a table.
`int`	`getDatabaseMajorVersion()` Gets the major version of the database.
`int`	`getDatabaseMinorVersion()` Gets the minor version of the database.
`String`	`getDatabaseProductName()` Gets the database product name.
`String`	`getDatabaseProductVersion()` Gets the product version of the database.
`int`	`getDefaultTransactionIsolation()` Returns the default transaction isolation level.
`int`	`getDriverMajorVersion()` Returns the major version of this driver.
`int`	`getDriverMinorVersion()` Returns the minor version of this driver.
`String`	`getDriverName()` Gets the name of the JDBC driver.
`String`	`getDriverVersion()` Gets the version number of the driver.
`ResultSet`	`getExportedKeys(String catalogPattern, String schemaPattern, String tableName)` Gets the list of foreign key columns that reference a table.
`String`	`getExtraNameCharacters()` Returns the characters that are allowed for identifiers in addiction to A-Z, a-z, 0-9 and '_'.
`ResultSet`	`getFunctionColumns(String catalog, String schemaPattern, String functionNamePattern, String columnNamePattern)` [Not supported] Gets the list of function columns.
`ResultSet`	`getFunctions(String catalog, String schemaPattern, String functionNamePattern)` [Not supported] Gets the list of functions.
`String`	`getIdentifierQuoteString()` Returns the string used to quote identifiers.
`ResultSet`	`getImportedKeys(String catalogPattern, String schemaPattern, String tableName)` Gets the list of primary key columns that are referenced by a table.
`ResultSet`	`getIndexInfo(String catalogPattern, String schemaPattern, String tableName, boolean unique, boolean approximate)` Gets the list of indexes for this database.
`int`	`getJDBCMajorVersion()` Gets the major version of the supported JDBC API.
`int`	`getJDBCMinorVersion()` Gets the minor version of the supported JDBC API.
`int`	`getMaxBinaryLiteralLength()` Returns the maximum length for hex values (characters).
`int`	`getMaxCatalogNameLength()` Returns the maximum length for a catalog name.
`int`	`getMaxCharLiteralLength()` Returns the maximum length for literals.
`int`	`getMaxColumnNameLength()` Returns the maximum length for column names.
`int`	`getMaxColumnsInGroupBy()` Returns the maximum number of columns in GROUP BY.
`int`	`getMaxColumnsInIndex()` Returns the maximum number of columns in CREATE INDEX.
`int`	`getMaxColumnsInOrderBy()` Returns the maximum number of columns in ORDER BY.
`int`	`getMaxColumnsInSelect()` Returns the maximum number of columns in SELECT.
`int`	`getMaxColumnsInTable()` Returns the maximum number of columns in CREATE TABLE.
`int`	`getMaxConnections()` Returns the maximum number of open connection.
`int`	`getMaxCursorNameLength()` Returns the maximum length for a cursor name.
`int`	`getMaxIndexLength()` Returns the maximum length for an index (in bytes).
`int`	`getMaxProcedureNameLength()` Returns the maximum length for a procedure name.
`int`	`getMaxRowSize()` Returns the maximum size of a row (in bytes).
`int`	`getMaxSchemaNameLength()` Returns the maximum length for a schema name.
`int`	`getMaxStatementLength()` Returns the maximum length of a statement.
`int`	`getMaxStatements()` Returns the maximum number of open statements.
`int`	`getMaxTableNameLength()` Returns the maximum length for a table name.
`int`	`getMaxTablesInSelect()` Returns the maximum number of tables in a SELECT.
`int`	`getMaxUserNameLength()` Returns the maximum length for a user name.
`String`	`getNumericFunctions()` Returns the list of numeric functions supported by this database.
`ResultSet`	`getPrimaryKeys(String catalogPattern, String schemaPattern, String tableName)` Gets the primary key columns for a table.
`ResultSet`	`getProcedureColumns(String catalogPattern, String schemaPattern, String procedureNamePattern, String columnNamePattern)` Gets the list of procedure columns.
`ResultSet`	`getProcedures(String catalogPattern, String schemaPattern, String procedureNamePattern)` Gets the list of procedures.
`String`	`getProcedureTerm()` Returns the term for "procedure".
`ResultSet`	`getPseudoColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern)` [Not supported]
`int`	`getResultSetHoldability()` Gets the result set holdability.
`RowIdLifetime`	`getRowIdLifetime()` Get the lifetime of a rowid.
`ResultSet`	`getSchemas()` Gets the list of schemas.
`ResultSet`	`getSchemas(String catalogPattern, String schemaPattern)` Gets the list of schemas in the database.
`String`	`getSchemaTerm()` Returns the term for "schema".
`String`	`getSearchStringEscape()` Returns the default escape character for DatabaseMetaData search patterns.
`String`	`getSQLKeywords()` Gets the comma-separated list of all SQL keywords that are not supported as table/column/index name, in addition to the SQL-92 keywords.
`int`	`getSQLStateType()` Gets the SQL State type.
`String`	`getStringFunctions()` Returns the list of string functions supported by this database.
`ResultSet`	`getSuperTables(String catalog, String schemaPattern, String tableNamePattern)` Get the list of super tables of a table.
`ResultSet`	`getSuperTypes(String catalog, String schemaPattern, String typeNamePattern)` [Not supported]
`String`	`getSystemFunctions()` Returns the list of system functions supported by this database.
`ResultSet`	`getTablePrivileges(String catalogPattern, String schemaPattern, String tableNamePattern)` Gets the list of table privileges.
`ResultSet`	`getTables(String catalogPattern, String schemaPattern, String tableNamePattern, String[] types)` Gets the list of tables in the database.
`ResultSet`	`getTableTypes()` Gets the list of table types.
`String`	`getTimeDateFunctions()` Returns the list of date and time functions supported by this database.
`ResultSet`	`getTypeInfo()` Gets the list of data types.
`ResultSet`	`getUDTs(String catalog, String schemaPattern, String typeNamePattern, int[] types)` Gets the list of user-defined data types.
`String`	`getURL()` Returns the database URL for this connection.
`String`	`getUserName()` Returns the user name as passed to DriverManager.getConnection(url, user, password).
`ResultSet`	`getVersionColumns(String catalog, String schema, String tableName)` Get the list of columns that are update when any value is updated.
`boolean`	`insertsAreDetected(int type)` Returns whether inserts are detected.
`boolean`	`isCatalogAtStart()` Returns whether the catalog is at the beginning.
`boolean`	`isReadOnly()` Returns the same as Connection.isReadOnly().
`boolean`	`isWrapperFor(Class<?> iface)` Checks if unwrap can return an object of this class.
`boolean`	`locatorsUpdateCopy()` Does the database make a copy before updating.
`boolean`	`nullPlusNonNullIsNull()` Returns whether NULL+1 is NULL or not.
`boolean`	`nullsAreSortedAtEnd()` Checks if NULL is sorted at the end (no matter if ASC or DESC is used).
`boolean`	`nullsAreSortedAtStart()` Checks if NULL is sorted at the beginning (no matter if ASC or DESC is used).
`boolean`	`nullsAreSortedHigh()` Checks if NULL is sorted high (bigger than anything that is not null).
`boolean`	`nullsAreSortedLow()` Checks if NULL is sorted low (smaller than anything that is not null).
`boolean`	`othersDeletesAreVisible(int type)` Returns whether other deletes are visible.
`boolean`	`othersInsertsAreVisible(int type)` Returns whether other inserts are visible.
`boolean`	`othersUpdatesAreVisible(int type)` Returns whether other updates are visible.
`boolean`	`ownDeletesAreVisible(int type)` Returns whether own deletes are visible.
`boolean`	`ownInsertsAreVisible(int type)` Returns whether own inserts are visible.
`boolean`	`ownUpdatesAreVisible(int type)` Returns whether own updates are visible.
`boolean`	`storesLowerCaseIdentifiers()` Checks if for CREATE TABLE Test(ID INT), getTables returns test as the table name.
`boolean`	`storesLowerCaseQuotedIdentifiers()` Checks if for CREATE TABLE "Test"(ID INT), getTables returns test as the table name.
`boolean`	`storesMixedCaseIdentifiers()` Checks if for CREATE TABLE Test(ID INT), getTables returns Test as the table name.
`boolean`	`storesMixedCaseQuotedIdentifiers()` Checks if for CREATE TABLE "Test"(ID INT), getTables returns Test as the table name.
`boolean`	`storesUpperCaseIdentifiers()` Checks if for CREATE TABLE Test(ID INT), getTables returns TEST as the table name.
`boolean`	`storesUpperCaseQuotedIdentifiers()` Checks if for CREATE TABLE "Test"(ID INT), getTables returns TEST as the table name.
`boolean`	`supportsAlterTableWithAddColumn()` Returns whether alter table with add column is supported.
`boolean`	`supportsAlterTableWithDropColumn()` Returns whether alter table with drop column is supported.
`boolean`	`supportsANSI92EntryLevelSQL()` Returns whether SQL-92 entry level grammar is supported.
`boolean`	`supportsANSI92FullSQL()` Returns whether SQL-92 full level grammar is supported.
`boolean`	`supportsANSI92IntermediateSQL()` Returns whether SQL-92 intermediate level grammar is supported.
`boolean`	`supportsBatchUpdates()` Returns whether batch updates are supported.
`boolean`	`supportsCatalogsInDataManipulation()` Returns whether the catalog name in INSERT, UPDATE, DELETE is supported.
`boolean`	`supportsCatalogsInIndexDefinitions()` Returns whether the catalog name in CREATE INDEX is supported.
`boolean`	`supportsCatalogsInPrivilegeDefinitions()` Returns whether the catalog name in GRANT is supported.
`boolean`	`supportsCatalogsInProcedureCalls()` Returns whether the catalog name in procedure calls is supported.
`boolean`	`supportsCatalogsInTableDefinitions()` Returns whether the catalog name in CREATE TABLE is supported.
`boolean`	`supportsColumnAliasing()` Returns whether column aliasing is supported.
`boolean`	`supportsConvert()` Returns whether CONVERT is supported.
`boolean`	`supportsConvert(int fromType, int toType)` Returns whether CONVERT is supported for one datatype to another.
`boolean`	`supportsCoreSQLGrammar()` Returns whether ODBC Core SQL grammar is supported.
`boolean`	`supportsCorrelatedSubqueries()` Returns whether correlated subqueries are supported.
`boolean`	`supportsDataDefinitionAndDataManipulationTransactions()` Returns whether data manipulation and CREATE/DROP is supported in transactions.
`boolean`	`supportsDataManipulationTransactionsOnly()` Returns whether only data manipulations are supported in transactions.
`boolean`	`supportsDifferentTableCorrelationNames()` Returns whether table correlation names (table alias) are restricted to be different than table names.
`boolean`	`supportsExpressionsInOrderBy()` Returns whether expression in ORDER BY are supported.
`boolean`	`supportsExtendedSQLGrammar()` Returns whether ODBC Extended SQL grammar is supported.
`boolean`	`supportsFullOuterJoins()` Returns whether full outer joins are supported.
`boolean`	`supportsGetGeneratedKeys()` Does the database support getGeneratedKeys.
`boolean`	`supportsGroupBy()` Returns whether GROUP BY is supported.
`boolean`	`supportsGroupByBeyondSelect()` Checks whether a GROUP BY clause can use columns that are not in the SELECT clause, provided that it specifies all the columns in the SELECT clause.
`boolean`	`supportsGroupByUnrelated()` Returns whether GROUP BY is supported if the column is not in the SELECT list.
`boolean`	`supportsIntegrityEnhancementFacility()` Returns whether referential integrity is supported.
`boolean`	`supportsLikeEscapeClause()` Returns whether LIKE...
`boolean`	`supportsLimitedOuterJoins()` Returns whether limited outer joins are supported.
`boolean`	`supportsMinimumSQLGrammar()` Returns whether ODBC Minimum SQL grammar is supported.
`boolean`	`supportsMixedCaseIdentifiers()` Checks if for CREATE TABLE Test(ID INT), getTables returns Test as the table name.
`boolean`	`supportsMixedCaseQuotedIdentifiers()` Checks if a table created with CREATE TABLE "Test"(ID INT) is a different table than a table created with CREATE TABLE TEST(ID INT).
`boolean`	`supportsMultipleOpenResults()` Does the database support multiple open result sets.
`boolean`	`supportsMultipleResultSets()` Returns whether multiple result sets are supported.
`boolean`	`supportsMultipleTransactions()` Returns whether multiple transactions (on different connections) are supported.
`boolean`	`supportsNamedParameters()` Does the database support named parameters.
`boolean`	`supportsNonNullableColumns()` Returns whether columns with NOT NULL are supported.
`boolean`	`supportsOpenCursorsAcrossCommit()` Returns whether open result sets across commits are supported.
`boolean`	`supportsOpenCursorsAcrossRollback()` Returns whether open result sets across rollback are supported.
`boolean`	`supportsOpenStatementsAcrossCommit()` Returns whether open statements across commit are supported.
`boolean`	`supportsOpenStatementsAcrossRollback()` Returns whether open statements across rollback are supported.
`boolean`	`supportsOrderByUnrelated()` Returns whether ORDER BY is supported if the column is not in the SELECT list.
`boolean`	`supportsOuterJoins()` Returns whether outer joins are supported.
`boolean`	`supportsPositionedDelete()` Returns whether positioned deletes are supported.
`boolean`	`supportsPositionedUpdate()` Returns whether positioned updates are supported.
`boolean`	`supportsResultSetConcurrency(int type, int concurrency)` Returns whether a specific result set concurrency is supported.
`boolean`	`supportsResultSetHoldability(int holdability)` Does this database supports a result set holdability.
`boolean`	`supportsResultSetType(int type)` Returns whether a specific result set type is supported.
`boolean`	`supportsSavepoints()` Does the database support savepoints.
`boolean`	`supportsSchemasInDataManipulation()` Returns whether the schema name in INSERT, UPDATE, DELETE is supported.
`boolean`	`supportsSchemasInIndexDefinitions()` Returns whether the schema name in CREATE INDEX is supported.
`boolean`	`supportsSchemasInPrivilegeDefinitions()` Returns whether the schema name in GRANT is supported.
`boolean`	`supportsSchemasInProcedureCalls()` Returns whether the schema name in procedure calls is supported.
`boolean`	`supportsSchemasInTableDefinitions()` Returns whether the schema name in CREATE TABLE is supported.
`boolean`	`supportsSelectForUpdate()` Returns whether SELECT ...
`boolean`	`supportsStatementPooling()` Does the database support statement pooling.
`boolean`	`supportsStoredFunctionsUsingCallSyntax()` Returns whether the database supports calling functions using the call syntax.
`boolean`	`supportsStoredProcedures()` Returns whether stored procedures are supported.
`boolean`	`supportsSubqueriesInComparisons()` Returns whether subqueries (SELECT) in comparisons are supported.
`boolean`	`supportsSubqueriesInExists()` Returns whether SELECT in EXISTS is supported.
`boolean`	`supportsSubqueriesInIns()` Returns whether IN(SELECT...) is supported.
`boolean`	`supportsSubqueriesInQuantifieds()` Returns whether subqueries in quantified expression are supported.
`boolean`	`supportsTableCorrelationNames()` Returns whether table correlation names (table alias) are supported.
`boolean`	`supportsTransactionIsolationLevel(int level)` Returns whether a specific transaction isolation level is supported.
`boolean`	`supportsTransactions()` Returns whether transactions are supported.
`boolean`	`supportsUnion()` Returns whether UNION SELECT is supported.
`boolean`	`supportsUnionAll()` Returns whether UNION ALL SELECT is supported.
`String`	`toString()` INTERNAL
`<T> T`	`unwrap(Class<T> iface)` Return an object of this class if possible.
`boolean`	`updatesAreDetected(int type)` Returns whether updates are detected.
`boolean`	`usesLocalFilePerTable()` Checks if this database use one file per table.
`boolean`	`usesLocalFiles()` Checks if this database store data in local files.

从类继承的方法 org.h2.message.TraceObject
debugCode, debugCodeAssign, debugCodeCall, debugCodeCall, debugCodeCall, getNextId, getTraceId, getTraceObjectName, isDebugEnabled, isInfoEnabled, logAndConvert, quote, quoteArray, quoteBigDecimal, quoteBytes, quoteDate, quoteIntArray, quoteMap, quoteTime, quoteTimestamp, setTrace, unsupported

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 java.sql.DatabaseMetaData
getMaxLogicalLobSize, supportsRefCursors

- 方法详细资料
  - getDriverMajorVersion
```
public int getDriverMajorVersion()
```
    Returns the major version of this driver.
    
    指定者:
    
    getDriverMajorVersion 在接口中 DatabaseMetaData
    
    返回:
    
    the major version number
  - getDriverMinorVersion
```
public int getDriverMinorVersion()
```
    Returns the minor version of this driver.
    
    指定者:
    
    getDriverMinorVersion 在接口中 DatabaseMetaData
    
    返回:
    
    the minor version number
  - getDatabaseProductName
```
public String getDatabaseProductName()
```
    Gets the database product name.
    
    指定者:
    
    getDatabaseProductName 在接口中 DatabaseMetaData
    
    返回:
    
    the product name ("H2")
  - getDatabaseProductVersion
```
public String getDatabaseProductVersion()
```
    Gets the product version of the database.
    
    指定者:
    
    getDatabaseProductVersion 在接口中 DatabaseMetaData
    
    返回:
    
    the product version
  - getDriverName
```
public String getDriverName()
```
    Gets the name of the JDBC driver.
    
    指定者:
    
    getDriverName 在接口中 DatabaseMetaData
    
    返回:
    
    the driver name ("H2 JDBC Driver")
  - getDriverVersion
```
public String getDriverVersion()
```
    Gets the version number of the driver. The format is [MajorVersion].[MinorVersion].
    
    指定者:
    
    getDriverVersion 在接口中 DatabaseMetaData
    
    返回:
    
    the version number
  - getTables
```
public ResultSet getTables(String catalogPattern,
                           String schemaPattern,
                           String tableNamePattern,
                           String[] types)
                    throws SQLException
```
    Gets the list of tables in the database. The result set is sorted by TABLE_TYPE, TABLE_SCHEM, and TABLE_NAME.
    - 1 TABLE_CAT (String) table catalog
    - 2 TABLE_SCHEM (String) table schema
    - 3 TABLE_NAME (String) table name
    - 4 TABLE_TYPE (String) table type
    - 5 REMARKS (String) comment
    - 6 TYPE_CAT (String) always null
    - 7 TYPE_SCHEM (String) always null
    - 8 TYPE_NAME (String) always null
    - 9 SELF_REFERENCING_COL_NAME (String) always null
    - 10 REF_GENERATION (String) always null
    - 11 SQL (String) the create table statement or NULL for systems tables
    指定者:
    
    getTables 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null (to get all objects) or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    tableNamePattern - null (to get all objects) or a table name (uppercase for unquoted names)
    
    types - null or a list of table types
    
    返回:
    
    the list of columns
    
    抛出:
    
    SQLException - if the connection is closed
  - getColumns
```
public ResultSet getColumns(String catalogPattern,
                            String schemaPattern,
                            String tableNamePattern,
                            String columnNamePattern)
                     throws SQLException
```
    Gets the list of columns. The result set is sorted by TABLE_SCHEM, TABLE_NAME, and ORDINAL_POSITION.
    - 1 TABLE_CAT (String) table catalog
    - 2 TABLE_SCHEM (String) table schema
    - 3 TABLE_NAME (String) table name
    - 4 COLUMN_NAME (String) column name
    - 5 DATA_TYPE (short) data type (see java.sql.Types)
    - 6 TYPE_NAME (String) data type name ("INTEGER", "VARCHAR",...)
    - 7 COLUMN_SIZE (int) precision (values larger than 2 GB are returned as 2 GB)
    - 8 BUFFER_LENGTH (int) unused
    - 9 DECIMAL_DIGITS (int) scale (0 for INTEGER and VARCHAR)
    - 10 NUM_PREC_RADIX (int) radix (always 10)
    - 11 NULLABLE (int) columnNoNulls or columnNullable
    - 12 REMARKS (String) comment (always empty)
    - 13 COLUMN_DEF (String) default value
    - 14 SQL_DATA_TYPE (int) unused
    - 15 SQL_DATETIME_SUB (int) unused
    - 16 CHAR_OCTET_LENGTH (int) unused
    - 17 ORDINAL_POSITION (int) the column index (1,2,...)
    - 18 IS_NULLABLE (String) "NO" or "YES"
    - 19 SCOPE_CATALOG (String) always null
    - 20 SCOPE_SCHEMA (String) always null
    - 21 SCOPE_TABLE (String) always null
    - 22 SOURCE_DATA_TYPE (short) null
    - 23 IS_AUTOINCREMENT (String) "NO" or "YES"
    - 24 SCOPE_CATLOG (String) always null (the typo is on purpose, for compatibility with the JDBC specification prior to 4.1)
    指定者:
    
    getColumns 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null (to get all objects) or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    tableNamePattern - null (to get all objects) or a table name (uppercase for unquoted names)
    
    columnNamePattern - null (to get all objects) or a column name (uppercase for unquoted names)
    
    返回:
    
    the list of columns
    
    抛出:
    
    SQLException - if the connection is closed
  - getIndexInfo
```
public ResultSet getIndexInfo(String catalogPattern,
                              String schemaPattern,
                              String tableName,
                              boolean unique,
                              boolean approximate)
                       throws SQLException
```
    Gets the list of indexes for this database. The primary key index (if there is one) is also listed, with the name PRIMARY_KEY. The result set is sorted by NON_UNIQUE ('false' first), TYPE, TABLE_SCHEM, INDEX_NAME, and ORDINAL_POSITION.
    - 1 TABLE_CAT (String) table catalog
    - 2 TABLE_SCHEM (String) table schema
    - 3 TABLE_NAME (String) table name
    - 4 NON_UNIQUE (boolean) 'true' if non-unique
    - 5 INDEX_QUALIFIER (String) index catalog
    - 6 INDEX_NAME (String) index name
    - 7 TYPE (short) the index type (always tableIndexOther)
    - 8 ORDINAL_POSITION (short) column index (1, 2, ...)
    - 9 COLUMN_NAME (String) column name
    - 10 ASC_OR_DESC (String) ascending or descending (always 'A')
    - 11 CARDINALITY (int) numbers of unique values
    - 12 PAGES (int) number of pages use (always 0)
    - 13 FILTER_CONDITION (String) filter condition (always empty)
    - 14 SORT_TYPE (int) the sort type bit map: 1=DESCENDING, 2=NULLS_FIRST, 4=NULLS_LAST
    指定者:
    
    getIndexInfo 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    tableName - table name (must be specified)
    
    unique - only unique indexes
    
    approximate - is ignored
    
    返回:
    
    the list of indexes and columns
    
    抛出:
    
    SQLException - if the connection is closed
  - getPrimaryKeys
```
public ResultSet getPrimaryKeys(String catalogPattern,
                                String schemaPattern,
                                String tableName)
                         throws SQLException
```
    Gets the primary key columns for a table. The result set is sorted by TABLE_SCHEM, and COLUMN_NAME (and not by KEY_SEQ).
    - 1 TABLE_CAT (String) table catalog
    - 2 TABLE_SCHEM (String) table schema
    - 3 TABLE_NAME (String) table name
    - 4 COLUMN_NAME (String) column name
    - 5 KEY_SEQ (short) the column index of this column (1,2,...)
    - 6 PK_NAME (String) the name of the primary key index
    指定者:
    
    getPrimaryKeys 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    tableName - table name (must be specified)
    
    返回:
    
    the list of primary key columns
    
    抛出:
    
    SQLException - if the connection is closed
  - allProceduresAreCallable
```
public boolean allProceduresAreCallable()
```
    Checks if all procedures callable.
    
    指定者:
    
    allProceduresAreCallable 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - allTablesAreSelectable
```
public boolean allTablesAreSelectable()
```
    Checks if it possible to query all tables returned by getTables.
    
    指定者:
    
    allTablesAreSelectable 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - getURL
```
public String getURL()
              throws SQLException
```
    Returns the database URL for this connection.
    
    指定者:
    
    getURL 在接口中 DatabaseMetaData
    
    返回:
    
    the url
    
    抛出:
    
    SQLException
  - getUserName
```
public String getUserName()
                   throws SQLException
```
    Returns the user name as passed to DriverManager.getConnection(url, user, password).
    
    指定者:
    
    getUserName 在接口中 DatabaseMetaData
    
    返回:
    
    the user name
    
    抛出:
    
    SQLException
  - isReadOnly
```
public boolean isReadOnly()
                   throws SQLException
```
    Returns the same as Connection.isReadOnly().
    
    指定者:
    
    isReadOnly 在接口中 DatabaseMetaData
    
    返回:
    
    if read only optimization is switched on
    
    抛出:
    
    SQLException
  - nullsAreSortedHigh
```
public boolean nullsAreSortedHigh()
```
    Checks if NULL is sorted high (bigger than anything that is not null).
    
    指定者:
    
    nullsAreSortedHigh 在接口中 DatabaseMetaData
    
    返回:
    
    false by default; true if the system property h2.sortNullsHigh is set to true
  - nullsAreSortedLow
```
public boolean nullsAreSortedLow()
```
    Checks if NULL is sorted low (smaller than anything that is not null).
    
    指定者:
    
    nullsAreSortedLow 在接口中 DatabaseMetaData
    
    返回:
    
    true by default; false if the system property h2.sortNullsHigh is set to true
  - nullsAreSortedAtStart
```
public boolean nullsAreSortedAtStart()
```
    Checks if NULL is sorted at the beginning (no matter if ASC or DESC is used).
    
    指定者:
    
    nullsAreSortedAtStart 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - nullsAreSortedAtEnd
```
public boolean nullsAreSortedAtEnd()
```
    Checks if NULL is sorted at the end (no matter if ASC or DESC is used).
    
    指定者:
    
    nullsAreSortedAtEnd 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - getConnection
```
public Connection getConnection()
```
    Returns the connection that created this object.
    
    指定者:
    
    getConnection 在接口中 DatabaseMetaData
    
    返回:
    
    the connection
  - getProcedures
```
public ResultSet getProcedures(String catalogPattern,
                               String schemaPattern,
                               String procedureNamePattern)
                        throws SQLException
```
    Gets the list of procedures. The result set is sorted by PROCEDURE_SCHEM, PROCEDURE_NAME, and NUM_INPUT_PARAMS. There are potentially multiple procedures with the same name, each with a different number of input parameters.
    - 1 PROCEDURE_CAT (String) catalog
    - 2 PROCEDURE_SCHEM (String) schema
    - 3 PROCEDURE_NAME (String) name
    - 4 NUM_INPUT_PARAMS (int) the number of arguments
    - 5 NUM_OUTPUT_PARAMS (int) for future use, always 0
    - 6 NUM_RESULT_SETS (int) for future use, always 0
    - 7 REMARKS (String) description
    - 8 PROCEDURE_TYPE (short) if this procedure returns a result (procedureNoResult or procedureReturnsResult)
    - 9 SPECIFIC_NAME (String) name
    指定者:
    
    getProcedures 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    procedureNamePattern - the procedure name pattern
    
    返回:
    
    the procedures
    
    抛出:
    
    SQLException - if the connection is closed
  - getProcedureColumns
```
public ResultSet getProcedureColumns(String catalogPattern,
                                     String schemaPattern,
                                     String procedureNamePattern,
                                     String columnNamePattern)
                              throws SQLException
```
    Gets the list of procedure columns. The result set is sorted by PROCEDURE_SCHEM, PROCEDURE_NAME, NUM_INPUT_PARAMS, and POS. There are potentially multiple procedures with the same name, each with a different number of input parameters.
    - 1 PROCEDURE_CAT (String) catalog
    - 2 PROCEDURE_SCHEM (String) schema
    - 3 PROCEDURE_NAME (String) name
    - 4 COLUMN_NAME (String) column name
    - 5 COLUMN_TYPE (short) column type (always DatabaseMetaData.procedureColumnIn)
    - 6 DATA_TYPE (short) sql type
    - 7 TYPE_NAME (String) type name
    - 8 PRECISION (int) precision
    - 9 LENGTH (int) length
    - 10 SCALE (short) scale
    - 11 RADIX (int) always 10
    - 12 NULLABLE (short) nullable (DatabaseMetaData.columnNoNulls for primitive data types, DatabaseMetaData.columnNullable otherwise)
    - 13 REMARKS (String) description
    - 14 COLUMN_DEF (String) always null
    - 15 SQL_DATA_TYPE (int) for future use, always 0
    - 16 SQL_DATETIME_SUB (int) for future use, always 0
    - 17 CHAR_OCTET_LENGTH (int) always null
    - 18 ORDINAL_POSITION (int) the parameter index starting from 1 (0 is the return value)
    - 19 IS_NULLABLE (String) always "YES"
    - 20 SPECIFIC_NAME (String) name
    指定者:
    
    getProcedureColumns 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    procedureNamePattern - the procedure name pattern
    
    columnNamePattern - the procedure name pattern
    
    返回:
    
    the procedure columns
    
    抛出:
    
    SQLException - if the connection is closed
  - getSchemas
```
public ResultSet getSchemas()
                     throws SQLException
```
    Gets the list of schemas. The result set is sorted by TABLE_SCHEM.
    - 1 TABLE_SCHEM (String) schema name
    - 2 TABLE_CATALOG (String) catalog name
    - 3 IS_DEFAULT (boolean) if this is the default schema
    指定者:
    
    getSchemas 在接口中 DatabaseMetaData
    
    返回:
    
    the schema list
    
    抛出:
    
    SQLException - if the connection is closed
  - getCatalogs
```
public ResultSet getCatalogs()
                      throws SQLException
```
    Gets the list of catalogs. The result set is sorted by TABLE_CAT.
    - 1 TABLE_CAT (String) catalog name
    指定者:
    
    getCatalogs 在接口中 DatabaseMetaData
    
    返回:
    
    the catalog list
    
    抛出:
    
    SQLException - if the connection is closed
  - getTableTypes
```
public ResultSet getTableTypes()
                        throws SQLException
```
    Gets the list of table types. This call returns a result set with five records: "SYSTEM TABLE", "TABLE", "VIEW", "TABLE LINK" and "EXTERNAL".
    - 1 TABLE_TYPE (String) table type
    指定者:
    
    getTableTypes 在接口中 DatabaseMetaData
    
    返回:
    
    the table types
    
    抛出:
    
    SQLException - if the connection is closed
  - getColumnPrivileges
```
public ResultSet getColumnPrivileges(String catalogPattern,
                                     String schemaPattern,
                                     String table,
                                     String columnNamePattern)
                              throws SQLException
```
    Gets the list of column privileges. The result set is sorted by COLUMN_NAME and PRIVILEGE
    - 1 TABLE_CAT (String) table catalog
    - 2 TABLE_SCHEM (String) table schema
    - 3 TABLE_NAME (String) table name
    - 4 COLUMN_NAME (String) column name
    - 5 GRANTOR (String) grantor of access
    - 6 GRANTEE (String) grantee of access
    - 7 PRIVILEGE (String) SELECT, INSERT, UPDATE, DELETE or REFERENCES (only one per row)
    - 8 IS_GRANTABLE (String) YES means the grantee can grant access to others
    指定者:
    
    getColumnPrivileges 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null (to get all objects) or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    table - a table name (uppercase for unquoted names)
    
    columnNamePattern - null (to get all objects) or a column name (uppercase for unquoted names)
    
    返回:
    
    the list of privileges
    
    抛出:
    
    SQLException - if the connection is closed
  - getTablePrivileges
```
public ResultSet getTablePrivileges(String catalogPattern,
                                    String schemaPattern,
                                    String tableNamePattern)
                             throws SQLException
```
    Gets the list of table privileges. The result set is sorted by TABLE_SCHEM, TABLE_NAME, and PRIVILEGE.
    - 1 TABLE_CAT (String) table catalog
    - 2 TABLE_SCHEM (String) table schema
    - 3 TABLE_NAME (String) table name
    - 4 GRANTOR (String) grantor of access
    - 5 GRANTEE (String) grantee of access
    - 6 PRIVILEGE (String) SELECT, INSERT, UPDATE, DELETE or REFERENCES (only one per row)
    - 7 IS_GRANTABLE (String) YES means the grantee can grant access to others
    指定者:
    
    getTablePrivileges 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null (to get all objects) or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    tableNamePattern - null (to get all objects) or a table name (uppercase for unquoted names)
    
    返回:
    
    the list of privileges
    
    抛出:
    
    SQLException - if the connection is closed
  - getBestRowIdentifier
```
public ResultSet getBestRowIdentifier(String catalogPattern,
                                      String schemaPattern,
                                      String tableName,
                                      int scope,
                                      boolean nullable)
                               throws SQLException
```
    Gets the list of columns that best identifier a row in a table. The list is ordered by SCOPE.
    - 1 SCOPE (short) scope of result (always bestRowSession)
    - 2 COLUMN_NAME (String) column name
    - 3 DATA_TYPE (short) SQL data type, see also java.sql.Types
    - 4 TYPE_NAME (String) type name
    - 5 COLUMN_SIZE (int) precision (values larger than 2 GB are returned as 2 GB)
    - 6 BUFFER_LENGTH (int) unused
    - 7 DECIMAL_DIGITS (short) scale
    - 8 PSEUDO_COLUMN (short) (always bestRowNotPseudo)
    指定者:
    
    getBestRowIdentifier 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null (to get all objects) or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    tableName - table name (must be specified)
    
    scope - ignored
    
    nullable - ignored
    
    返回:
    
    the primary key index
    
    抛出:
    
    SQLException - if the connection is closed
  - getVersionColumns
```
public ResultSet getVersionColumns(String catalog,
                                   String schema,
                                   String tableName)
                            throws SQLException
```
    Get the list of columns that are update when any value is updated. The result set is always empty.
    - 1 SCOPE (int) not used
    - 2 COLUMN_NAME (String) column name
    - 3 DATA_TYPE (int) SQL data type - see also java.sql.Types
    - 4 TYPE_NAME (String) data type name
    - 5 COLUMN_SIZE (int) precision (values larger than 2 GB are returned as 2 GB)
    - 6 BUFFER_LENGTH (int) length (bytes)
    - 7 DECIMAL_DIGITS (int) scale
    - 8 PSEUDO_COLUMN (int) is this column a pseudo column
    指定者:
    
    getVersionColumns 在接口中 DatabaseMetaData
    
    参数:
    
    catalog - null (to get all objects) or the catalog name
    
    schema - null (to get all objects) or a schema name
    
    tableName - table name (must be specified)
    
    返回:
    
    an empty result set
    
    抛出:
    
    SQLException - if the connection is closed
  - getImportedKeys
```
public ResultSet getImportedKeys(String catalogPattern,
                                 String schemaPattern,
                                 String tableName)
                          throws SQLException
```
    Gets the list of primary key columns that are referenced by a table. The result set is sorted by PKTABLE_CAT, PKTABLE_SCHEM, PKTABLE_NAME, FK_NAME, KEY_SEQ.
    - 1 PKTABLE_CAT (String) primary catalog
    - 2 PKTABLE_SCHEM (String) primary schema
    - 3 PKTABLE_NAME (String) primary table
    - 4 PKCOLUMN_NAME (String) primary column
    - 5 FKTABLE_CAT (String) foreign catalog
    - 6 FKTABLE_SCHEM (String) foreign schema
    - 7 FKTABLE_NAME (String) foreign table
    - 8 FKCOLUMN_NAME (String) foreign column
    - 9 KEY_SEQ (short) sequence number (1, 2, ...)
    - 10 UPDATE_RULE (short) action on update (see DatabaseMetaData.importedKey...)
    - 11 DELETE_RULE (short) action on delete (see DatabaseMetaData.importedKey...)
    - 12 FK_NAME (String) foreign key name
    - 13 PK_NAME (String) primary key name
    - 14 DEFERRABILITY (short) deferrable or not (always importedKeyNotDeferrable)
    指定者:
    
    getImportedKeys 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null (to get all objects) or the catalog name
    
    schemaPattern - the schema name of the foreign table
    
    tableName - the name of the foreign table
    
    返回:
    
    the result set
    
    抛出:
    
    SQLException - if the connection is closed
  - getExportedKeys
```
public ResultSet getExportedKeys(String catalogPattern,
                                 String schemaPattern,
                                 String tableName)
                          throws SQLException
```
    Gets the list of foreign key columns that reference a table. The result set is sorted by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, FK_NAME, KEY_SEQ.
    - 1 PKTABLE_CAT (String) primary catalog
    - 2 PKTABLE_SCHEM (String) primary schema
    - 3 PKTABLE_NAME (String) primary table
    - 4 PKCOLUMN_NAME (String) primary column
    - 5 FKTABLE_CAT (String) foreign catalog
    - 6 FKTABLE_SCHEM (String) foreign schema
    - 7 FKTABLE_NAME (String) foreign table
    - 8 FKCOLUMN_NAME (String) foreign column
    - 9 KEY_SEQ (short) sequence number (1,2,...)
    - 10 UPDATE_RULE (short) action on update (see DatabaseMetaData.importedKey...)
    - 11 DELETE_RULE (short) action on delete (see DatabaseMetaData.importedKey...)
    - 12 FK_NAME (String) foreign key name
    - 13 PK_NAME (String) primary key name
    - 14 DEFERRABILITY (short) deferrable or not (always importedKeyNotDeferrable)
    指定者:
    
    getExportedKeys 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null or the catalog name
    
    schemaPattern - the schema name of the primary table
    
    tableName - the name of the primary table
    
    返回:
    
    the result set
    
    抛出:
    
    SQLException - if the connection is closed
  - getCrossReference
```
public ResultSet getCrossReference(String primaryCatalogPattern,
                                   String primarySchemaPattern,
                                   String primaryTable,
                                   String foreignCatalogPattern,
                                   String foreignSchemaPattern,
                                   String foreignTable)
                            throws SQLException
```
    Gets the list of foreign key columns that references a table, as well as the list of primary key columns that are references by a table. The result set is sorted by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, FK_NAME, KEY_SEQ.
    - 1 PKTABLE_CAT (String) primary catalog
    - 2 PKTABLE_SCHEM (String) primary schema
    - 3 PKTABLE_NAME (String) primary table
    - 4 PKCOLUMN_NAME (String) primary column
    - 5 FKTABLE_CAT (String) foreign catalog
    - 6 FKTABLE_SCHEM (String) foreign schema
    - 7 FKTABLE_NAME (String) foreign table
    - 8 FKCOLUMN_NAME (String) foreign column
    - 9 KEY_SEQ (short) sequence number (1,2,...)
    - 10 UPDATE_RULE (short) action on update (see DatabaseMetaData.importedKey...)
    - 11 DELETE_RULE (short) action on delete (see DatabaseMetaData.importedKey...)
    - 12 FK_NAME (String) foreign key name
    - 13 PK_NAME (String) primary key name
    - 14 DEFERRABILITY (short) deferrable or not (always importedKeyNotDeferrable)
    指定者:
    
    getCrossReference 在接口中 DatabaseMetaData
    
    参数:
    
    primaryCatalogPattern - null or the catalog name
    
    primarySchemaPattern - the schema name of the primary table (optional)
    
    primaryTable - the name of the primary table (must be specified)
    
    foreignCatalogPattern - null or the catalog name
    
    foreignSchemaPattern - the schema name of the foreign table (optional)
    
    foreignTable - the name of the foreign table (must be specified)
    
    返回:
    
    the result set
    
    抛出:
    
    SQLException - if the connection is closed
  - getUDTs
```
public ResultSet getUDTs(String catalog,
                         String schemaPattern,
                         String typeNamePattern,
                         int[] types)
                  throws SQLException
```
    Gets the list of user-defined data types. This call returns an empty result set.
    - 1 TYPE_CAT (String) catalog
    - 2 TYPE_SCHEM (String) schema
    - 3 TYPE_NAME (String) type name
    - 4 CLASS_NAME (String) Java class
    - 5 DATA_TYPE (short) SQL Type - see also java.sql.Types
    - 6 REMARKS (String) description
    - 7 BASE_TYPE (short) base type - see also java.sql.Types
    指定者:
    
    getUDTs 在接口中 DatabaseMetaData
    
    参数:
    
    catalog - ignored
    
    schemaPattern - ignored
    
    typeNamePattern - ignored
    
    types - ignored
    
    返回:
    
    an empty result set
    
    抛出:
    
    SQLException - if the connection is closed
  - getTypeInfo
```
public ResultSet getTypeInfo()
                      throws SQLException
```
    Gets the list of data types. The result set is sorted by DATA_TYPE and afterwards by how closely the data type maps to the corresponding JDBC SQL type (best match first).
    - 1 TYPE_NAME (String) type name
    - 2 DATA_TYPE (short) SQL data type - see also java.sql.Types
    - 3 PRECISION (int) maximum precision
    - 4 LITERAL_PREFIX (String) prefix used to quote a literal
    - 5 LITERAL_SUFFIX (String) suffix used to quote a literal
    - 6 CREATE_PARAMS (String) parameters used (may be null)
    - 7 NULLABLE (short) typeNoNulls (NULL not allowed) or typeNullable
    - 8 CASE_SENSITIVE (boolean) case sensitive
    - 9 SEARCHABLE (short) typeSearchable
    - 10 UNSIGNED_ATTRIBUTE (boolean) unsigned
    - 11 FIXED_PREC_SCALE (boolean) fixed precision
    - 12 AUTO_INCREMENT (boolean) auto increment
    - 13 LOCAL_TYPE_NAME (String) localized version of the data type
    - 14 MINIMUM_SCALE (short) minimum scale
    - 15 MAXIMUM_SCALE (short) maximum scale
    - 16 SQL_DATA_TYPE (int) unused
    - 17 SQL_DATETIME_SUB (int) unused
    - 18 NUM_PREC_RADIX (int) 2 for binary, 10 for decimal
    指定者:
    
    getTypeInfo 在接口中 DatabaseMetaData
    
    返回:
    
    the list of data types
    
    抛出:
    
    SQLException - if the connection is closed
  - usesLocalFiles
```
public boolean usesLocalFiles()
```
    Checks if this database store data in local files.
    
    指定者:
    
    usesLocalFiles 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - usesLocalFilePerTable
```
public boolean usesLocalFilePerTable()
```
    Checks if this database use one file per table.
    
    指定者:
    
    usesLocalFilePerTable 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - getIdentifierQuoteString
```
public String getIdentifierQuoteString()
```
    Returns the string used to quote identifiers.
    
    指定者:
    
    getIdentifierQuoteString 在接口中 DatabaseMetaData
    
    返回:
    
    a double quote
  - getSQLKeywords
```
public String getSQLKeywords()
```
    Gets the comma-separated list of all SQL keywords that are not supported as table/column/index name, in addition to the SQL-92 keywords. The list returned is:
```
 LIMIT,MINUS,ROWNUM,SYSDATE,SYSTIME,SYSTIMESTAMP,TODAY
 
```
    The complete list of keywords (including SQL-92 keywords) is:
```
 CROSS, CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP, DISTINCT,
 EXCEPT, EXISTS, FALSE, FOR, FROM, FULL, GROUP, HAVING, INNER,
 INTERSECT, IS, JOIN, LIKE, LIMIT, MINUS, NATURAL, NOT, NULL, ON,
 ORDER, PRIMARY, ROWNUM, SELECT, SYSDATE, SYSTIME, SYSTIMESTAMP,
 TODAY, TRUE, UNION, UNIQUE, WHERE
 
```
    指定者:
    
    getSQLKeywords 在接口中 DatabaseMetaData
    
    返回:
    
    a list of additional the keywords
  - getNumericFunctions
```
public String getNumericFunctions()
                           throws SQLException
```
    Returns the list of numeric functions supported by this database.
    
    指定者:
    
    getNumericFunctions 在接口中 DatabaseMetaData
    
    返回:
    
    the list
    
    抛出:
    
    SQLException
  - getStringFunctions
```
public String getStringFunctions()
                          throws SQLException
```
    Returns the list of string functions supported by this database.
    
    指定者:
    
    getStringFunctions 在接口中 DatabaseMetaData
    
    返回:
    
    the list
    
    抛出:
    
    SQLException
  - getSystemFunctions
```
public String getSystemFunctions()
                          throws SQLException
```
    Returns the list of system functions supported by this database.
    
    指定者:
    
    getSystemFunctions 在接口中 DatabaseMetaData
    
    返回:
    
    the list
    
    抛出:
    
    SQLException
  - getTimeDateFunctions
```
public String getTimeDateFunctions()
                            throws SQLException
```
    Returns the list of date and time functions supported by this database.
    
    指定者:
    
    getTimeDateFunctions 在接口中 DatabaseMetaData
    
    返回:
    
    the list
    
    抛出:
    
    SQLException
  - getSearchStringEscape
```
public String getSearchStringEscape()
```
    Returns the default escape character for DatabaseMetaData search patterns.
    
    指定者:
    
    getSearchStringEscape 在接口中 DatabaseMetaData
    
    返回:
    
    the default escape character (always '\', independent on the mode)
  - getExtraNameCharacters
```
public String getExtraNameCharacters()
```
    Returns the characters that are allowed for identifiers in addiction to A-Z, a-z, 0-9 and '_'.
    
    指定者:
    
    getExtraNameCharacters 在接口中 DatabaseMetaData
    
    返回:
    
    an empty String ("")
  - supportsAlterTableWithAddColumn
```
public boolean supportsAlterTableWithAddColumn()
```
    Returns whether alter table with add column is supported.
    
    指定者:
    
    supportsAlterTableWithAddColumn 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsAlterTableWithDropColumn
```
public boolean supportsAlterTableWithDropColumn()
```
    Returns whether alter table with drop column is supported.
    
    指定者:
    
    supportsAlterTableWithDropColumn 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsColumnAliasing
```
public boolean supportsColumnAliasing()
```
    Returns whether column aliasing is supported.
    
    指定者:
    
    supportsColumnAliasing 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - nullPlusNonNullIsNull
```
public boolean nullPlusNonNullIsNull()
```
    Returns whether NULL+1 is NULL or not.
    
    指定者:
    
    nullPlusNonNullIsNull 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsConvert
```
public boolean supportsConvert()
```
    Returns whether CONVERT is supported.
    
    指定者:
    
    supportsConvert 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsConvert
```
public boolean supportsConvert(int fromType,
                               int toType)
```
    Returns whether CONVERT is supported for one datatype to another.
    
    指定者:
    
    supportsConvert 在接口中 DatabaseMetaData
    
    参数:
    
    fromType - the source SQL type
    
    toType - the target SQL type
    
    返回:
    
    true
  - supportsTableCorrelationNames
```
public boolean supportsTableCorrelationNames()
```
    Returns whether table correlation names (table alias) are supported.
    
    指定者:
    
    supportsTableCorrelationNames 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsDifferentTableCorrelationNames
```
public boolean supportsDifferentTableCorrelationNames()
```
    Returns whether table correlation names (table alias) are restricted to be different than table names.
    
    指定者:
    
    supportsDifferentTableCorrelationNames 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsExpressionsInOrderBy
```
public boolean supportsExpressionsInOrderBy()
```
    Returns whether expression in ORDER BY are supported.
    
    指定者:
    
    supportsExpressionsInOrderBy 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsOrderByUnrelated
```
public boolean supportsOrderByUnrelated()
```
    Returns whether ORDER BY is supported if the column is not in the SELECT list.
    
    指定者:
    
    supportsOrderByUnrelated 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsGroupBy
```
public boolean supportsGroupBy()
```
    Returns whether GROUP BY is supported.
    
    指定者:
    
    supportsGroupBy 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsGroupByUnrelated
```
public boolean supportsGroupByUnrelated()
```
    Returns whether GROUP BY is supported if the column is not in the SELECT list.
    
    指定者:
    
    supportsGroupByUnrelated 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsGroupByBeyondSelect
```
public boolean supportsGroupByBeyondSelect()
```
    Checks whether a GROUP BY clause can use columns that are not in the SELECT clause, provided that it specifies all the columns in the SELECT clause.
    
    指定者:
    
    supportsGroupByBeyondSelect 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsLikeEscapeClause
```
public boolean supportsLikeEscapeClause()
```
    Returns whether LIKE... ESCAPE is supported.
    
    指定者:
    
    supportsLikeEscapeClause 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsMultipleResultSets
```
public boolean supportsMultipleResultSets()
```
    Returns whether multiple result sets are supported.
    
    指定者:
    
    supportsMultipleResultSets 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsMultipleTransactions
```
public boolean supportsMultipleTransactions()
```
    Returns whether multiple transactions (on different connections) are supported.
    
    指定者:
    
    supportsMultipleTransactions 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsNonNullableColumns
```
public boolean supportsNonNullableColumns()
```
    Returns whether columns with NOT NULL are supported.
    
    指定者:
    
    supportsNonNullableColumns 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsMinimumSQLGrammar
```
public boolean supportsMinimumSQLGrammar()
```
    Returns whether ODBC Minimum SQL grammar is supported.
    
    指定者:
    
    supportsMinimumSQLGrammar 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsCoreSQLGrammar
```
public boolean supportsCoreSQLGrammar()
```
    Returns whether ODBC Core SQL grammar is supported.
    
    指定者:
    
    supportsCoreSQLGrammar 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsExtendedSQLGrammar
```
public boolean supportsExtendedSQLGrammar()
```
    Returns whether ODBC Extended SQL grammar is supported.
    
    指定者:
    
    supportsExtendedSQLGrammar 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsANSI92EntryLevelSQL
```
public boolean supportsANSI92EntryLevelSQL()
```
    Returns whether SQL-92 entry level grammar is supported.
    
    指定者:
    
    supportsANSI92EntryLevelSQL 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsANSI92IntermediateSQL
```
public boolean supportsANSI92IntermediateSQL()
```
    Returns whether SQL-92 intermediate level grammar is supported.
    
    指定者:
    
    supportsANSI92IntermediateSQL 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsANSI92FullSQL
```
public boolean supportsANSI92FullSQL()
```
    Returns whether SQL-92 full level grammar is supported.
    
    指定者:
    
    supportsANSI92FullSQL 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsIntegrityEnhancementFacility
```
public boolean supportsIntegrityEnhancementFacility()
```
    Returns whether referential integrity is supported.
    
    指定者:
    
    supportsIntegrityEnhancementFacility 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsOuterJoins
```
public boolean supportsOuterJoins()
```
    Returns whether outer joins are supported.
    
    指定者:
    
    supportsOuterJoins 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsFullOuterJoins
```
public boolean supportsFullOuterJoins()
```
    Returns whether full outer joins are supported.
    
    指定者:
    
    supportsFullOuterJoins 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsLimitedOuterJoins
```
public boolean supportsLimitedOuterJoins()
```
    Returns whether limited outer joins are supported.
    
    指定者:
    
    supportsLimitedOuterJoins 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - getSchemaTerm
```
public String getSchemaTerm()
```
    Returns the term for "schema".
    
    指定者:
    
    getSchemaTerm 在接口中 DatabaseMetaData
    
    返回:
    
    "schema"
  - getProcedureTerm
```
public String getProcedureTerm()
```
    Returns the term for "procedure".
    
    指定者:
    
    getProcedureTerm 在接口中 DatabaseMetaData
    
    返回:
    
    "procedure"
  - getCatalogTerm
```
public String getCatalogTerm()
```
    Returns the term for "catalog".
    
    指定者:
    
    getCatalogTerm 在接口中 DatabaseMetaData
    
    返回:
    
    "catalog"
  - isCatalogAtStart
```
public boolean isCatalogAtStart()
```
    Returns whether the catalog is at the beginning.
    
    指定者:
    
    isCatalogAtStart 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - getCatalogSeparator
```
public String getCatalogSeparator()
```
    Returns the catalog separator.
    
    指定者:
    
    getCatalogSeparator 在接口中 DatabaseMetaData
    
    返回:
    
    "."
  - supportsSchemasInDataManipulation
```
public boolean supportsSchemasInDataManipulation()
```
    Returns whether the schema name in INSERT, UPDATE, DELETE is supported.
    
    指定者:
    
    supportsSchemasInDataManipulation 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsSchemasInProcedureCalls
```
public boolean supportsSchemasInProcedureCalls()
```
    Returns whether the schema name in procedure calls is supported.
    
    指定者:
    
    supportsSchemasInProcedureCalls 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsSchemasInTableDefinitions
```
public boolean supportsSchemasInTableDefinitions()
```
    Returns whether the schema name in CREATE TABLE is supported.
    
    指定者:
    
    supportsSchemasInTableDefinitions 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsSchemasInIndexDefinitions
```
public boolean supportsSchemasInIndexDefinitions()
```
    Returns whether the schema name in CREATE INDEX is supported.
    
    指定者:
    
    supportsSchemasInIndexDefinitions 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsSchemasInPrivilegeDefinitions
```
public boolean supportsSchemasInPrivilegeDefinitions()
```
    Returns whether the schema name in GRANT is supported.
    
    指定者:
    
    supportsSchemasInPrivilegeDefinitions 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsCatalogsInDataManipulation
```
public boolean supportsCatalogsInDataManipulation()
```
    Returns whether the catalog name in INSERT, UPDATE, DELETE is supported.
    
    指定者:
    
    supportsCatalogsInDataManipulation 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsCatalogsInProcedureCalls
```
public boolean supportsCatalogsInProcedureCalls()
```
    Returns whether the catalog name in procedure calls is supported.
    
    指定者:
    
    supportsCatalogsInProcedureCalls 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsCatalogsInTableDefinitions
```
public boolean supportsCatalogsInTableDefinitions()
```
    Returns whether the catalog name in CREATE TABLE is supported.
    
    指定者:
    
    supportsCatalogsInTableDefinitions 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsCatalogsInIndexDefinitions
```
public boolean supportsCatalogsInIndexDefinitions()
```
    Returns whether the catalog name in CREATE INDEX is supported.
    
    指定者:
    
    supportsCatalogsInIndexDefinitions 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsCatalogsInPrivilegeDefinitions
```
public boolean supportsCatalogsInPrivilegeDefinitions()
```
    Returns whether the catalog name in GRANT is supported.
    
    指定者:
    
    supportsCatalogsInPrivilegeDefinitions 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsPositionedDelete
```
public boolean supportsPositionedDelete()
```
    Returns whether positioned deletes are supported.
    
    指定者:
    
    supportsPositionedDelete 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsPositionedUpdate
```
public boolean supportsPositionedUpdate()
```
    Returns whether positioned updates are supported.
    
    指定者:
    
    supportsPositionedUpdate 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsSelectForUpdate
```
public boolean supportsSelectForUpdate()
```
    Returns whether SELECT ... FOR UPDATE is supported.
    
    指定者:
    
    supportsSelectForUpdate 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsStoredProcedures
```
public boolean supportsStoredProcedures()
```
    Returns whether stored procedures are supported.
    
    指定者:
    
    supportsStoredProcedures 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsSubqueriesInComparisons
```
public boolean supportsSubqueriesInComparisons()
```
    Returns whether subqueries (SELECT) in comparisons are supported.
    
    指定者:
    
    supportsSubqueriesInComparisons 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsSubqueriesInExists
```
public boolean supportsSubqueriesInExists()
```
    Returns whether SELECT in EXISTS is supported.
    
    指定者:
    
    supportsSubqueriesInExists 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsSubqueriesInIns
```
public boolean supportsSubqueriesInIns()
```
    Returns whether IN(SELECT...) is supported.
    
    指定者:
    
    supportsSubqueriesInIns 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsSubqueriesInQuantifieds
```
public boolean supportsSubqueriesInQuantifieds()
```
    Returns whether subqueries in quantified expression are supported.
    
    指定者:
    
    supportsSubqueriesInQuantifieds 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsCorrelatedSubqueries
```
public boolean supportsCorrelatedSubqueries()
```
    Returns whether correlated subqueries are supported.
    
    指定者:
    
    supportsCorrelatedSubqueries 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsUnion
```
public boolean supportsUnion()
```
    Returns whether UNION SELECT is supported.
    
    指定者:
    
    supportsUnion 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsUnionAll
```
public boolean supportsUnionAll()
```
    Returns whether UNION ALL SELECT is supported.
    
    指定者:
    
    supportsUnionAll 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsOpenCursorsAcrossCommit
```
public boolean supportsOpenCursorsAcrossCommit()
```
    Returns whether open result sets across commits are supported.
    
    指定者:
    
    supportsOpenCursorsAcrossCommit 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsOpenCursorsAcrossRollback
```
public boolean supportsOpenCursorsAcrossRollback()
```
    Returns whether open result sets across rollback are supported.
    
    指定者:
    
    supportsOpenCursorsAcrossRollback 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsOpenStatementsAcrossCommit
```
public boolean supportsOpenStatementsAcrossCommit()
```
    Returns whether open statements across commit are supported.
    
    指定者:
    
    supportsOpenStatementsAcrossCommit 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsOpenStatementsAcrossRollback
```
public boolean supportsOpenStatementsAcrossRollback()
```
    Returns whether open statements across rollback are supported.
    
    指定者:
    
    supportsOpenStatementsAcrossRollback 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsTransactions
```
public boolean supportsTransactions()
```
    Returns whether transactions are supported.
    
    指定者:
    
    supportsTransactions 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsTransactionIsolationLevel
```
public boolean supportsTransactionIsolationLevel(int level)
                                          throws SQLException
```
    Returns whether a specific transaction isolation level is supported.
    
    指定者:
    
    supportsTransactionIsolationLevel 在接口中 DatabaseMetaData
    
    参数:
    
    level - the transaction isolation level (Connection.TRANSACTION_*)
    
    返回:
    
    true
    
    抛出:
    
    SQLException
  - supportsDataDefinitionAndDataManipulationTransactions
```
public boolean supportsDataDefinitionAndDataManipulationTransactions()
```
    Returns whether data manipulation and CREATE/DROP is supported in transactions.
    
    指定者:
    
    supportsDataDefinitionAndDataManipulationTransactions 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsDataManipulationTransactionsOnly
```
public boolean supportsDataManipulationTransactionsOnly()
```
    Returns whether only data manipulations are supported in transactions.
    
    指定者:
    
    supportsDataManipulationTransactionsOnly 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - dataDefinitionCausesTransactionCommit
```
public boolean dataDefinitionCausesTransactionCommit()
```
    Returns whether CREATE/DROP commit an open transaction.
    
    指定者:
    
    dataDefinitionCausesTransactionCommit 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - dataDefinitionIgnoredInTransactions
```
public boolean dataDefinitionIgnoredInTransactions()
```
    Returns whether CREATE/DROP do not affect transactions.
    
    指定者:
    
    dataDefinitionIgnoredInTransactions 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsResultSetType
```
public boolean supportsResultSetType(int type)
```
    Returns whether a specific result set type is supported. ResultSet.TYPE_SCROLL_SENSITIVE is not supported.
    
    指定者:
    
    supportsResultSetType 在接口中 DatabaseMetaData
    
    参数:
    
    type - the result set type
    
    返回:
    
    true for all types except ResultSet.TYPE_FORWARD_ONLY
  - supportsResultSetConcurrency
```
public boolean supportsResultSetConcurrency(int type,
                                            int concurrency)
```
    Returns whether a specific result set concurrency is supported. ResultSet.TYPE_SCROLL_SENSITIVE is not supported.
    
    指定者:
    
    supportsResultSetConcurrency 在接口中 DatabaseMetaData
    
    参数:
    
    type - the result set type
    
    concurrency - the result set concurrency
    
    返回:
    
    true if the type is not ResultSet.TYPE_SCROLL_SENSITIVE
  - ownUpdatesAreVisible
```
public boolean ownUpdatesAreVisible(int type)
```
    Returns whether own updates are visible.
    
    指定者:
    
    ownUpdatesAreVisible 在接口中 DatabaseMetaData
    
    参数:
    
    type - the result set type
    
    返回:
    
    true
  - ownDeletesAreVisible
```
public boolean ownDeletesAreVisible(int type)
```
    Returns whether own deletes are visible.
    
    指定者:
    
    ownDeletesAreVisible 在接口中 DatabaseMetaData
    
    参数:
    
    type - the result set type
    
    返回:
    
    false
  - ownInsertsAreVisible
```
public boolean ownInsertsAreVisible(int type)
```
    Returns whether own inserts are visible.
    
    指定者:
    
    ownInsertsAreVisible 在接口中 DatabaseMetaData
    
    参数:
    
    type - the result set type
    
    返回:
    
    false
  - othersUpdatesAreVisible
```
public boolean othersUpdatesAreVisible(int type)
```
    Returns whether other updates are visible.
    
    指定者:
    
    othersUpdatesAreVisible 在接口中 DatabaseMetaData
    
    参数:
    
    type - the result set type
    
    返回:
    
    false
  - othersDeletesAreVisible
```
public boolean othersDeletesAreVisible(int type)
```
    Returns whether other deletes are visible.
    
    指定者:
    
    othersDeletesAreVisible 在接口中 DatabaseMetaData
    
    参数:
    
    type - the result set type
    
    返回:
    
    false
  - othersInsertsAreVisible
```
public boolean othersInsertsAreVisible(int type)
```
    Returns whether other inserts are visible.
    
    指定者:
    
    othersInsertsAreVisible 在接口中 DatabaseMetaData
    
    参数:
    
    type - the result set type
    
    返回:
    
    false
  - updatesAreDetected
```
public boolean updatesAreDetected(int type)
```
    Returns whether updates are detected.
    
    指定者:
    
    updatesAreDetected 在接口中 DatabaseMetaData
    
    参数:
    
    type - the result set type
    
    返回:
    
    false
  - deletesAreDetected
```
public boolean deletesAreDetected(int type)
```
    Returns whether deletes are detected.
    
    指定者:
    
    deletesAreDetected 在接口中 DatabaseMetaData
    
    参数:
    
    type - the result set type
    
    返回:
    
    false
  - insertsAreDetected
```
public boolean insertsAreDetected(int type)
```
    Returns whether inserts are detected.
    
    指定者:
    
    insertsAreDetected 在接口中 DatabaseMetaData
    
    参数:
    
    type - the result set type
    
    返回:
    
    false
  - supportsBatchUpdates
```
public boolean supportsBatchUpdates()
```
    Returns whether batch updates are supported.
    
    指定者:
    
    supportsBatchUpdates 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - doesMaxRowSizeIncludeBlobs
```
public boolean doesMaxRowSizeIncludeBlobs()
```
    Returns whether the maximum row size includes blobs.
    
    指定者:
    
    doesMaxRowSizeIncludeBlobs 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - getDefaultTransactionIsolation
```
public int getDefaultTransactionIsolation()
```
    Returns the default transaction isolation level.
    
    指定者:
    
    getDefaultTransactionIsolation 在接口中 DatabaseMetaData
    
    返回:
    
    Connection.TRANSACTION_READ_COMMITTED
  - supportsMixedCaseIdentifiers
```
public boolean supportsMixedCaseIdentifiers()
```
    Checks if for CREATE TABLE Test(ID INT), getTables returns Test as the table name.
    
    指定者:
    
    supportsMixedCaseIdentifiers 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsMixedCaseQuotedIdentifiers
```
public boolean supportsMixedCaseQuotedIdentifiers()
                                           throws SQLException
```
    Checks if a table created with CREATE TABLE "Test"(ID INT) is a different table than a table created with CREATE TABLE TEST(ID INT).
    
    指定者:
    
    supportsMixedCaseQuotedIdentifiers 在接口中 DatabaseMetaData
    
    返回:
    
    true usually, and false in MySQL mode
    
    抛出:
    
    SQLException
  - storesUpperCaseIdentifiers
```
public boolean storesUpperCaseIdentifiers()
                                   throws SQLException
```
    Checks if for CREATE TABLE Test(ID INT), getTables returns TEST as the table name.
    
    指定者:
    
    storesUpperCaseIdentifiers 在接口中 DatabaseMetaData
    
    返回:
    
    true usually, and false in MySQL mode
    
    抛出:
    
    SQLException
  - storesLowerCaseIdentifiers
```
public boolean storesLowerCaseIdentifiers()
                                   throws SQLException
```
    Checks if for CREATE TABLE Test(ID INT), getTables returns test as the table name.
    
    指定者:
    
    storesLowerCaseIdentifiers 在接口中 DatabaseMetaData
    
    返回:
    
    false usually, and true in MySQL mode
    
    抛出:
    
    SQLException
  - storesMixedCaseIdentifiers
```
public boolean storesMixedCaseIdentifiers()
```
    Checks if for CREATE TABLE Test(ID INT), getTables returns Test as the table name.
    
    指定者:
    
    storesMixedCaseIdentifiers 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - storesUpperCaseQuotedIdentifiers
```
public boolean storesUpperCaseQuotedIdentifiers()
                                         throws SQLException
```
    Checks if for CREATE TABLE "Test"(ID INT), getTables returns TEST as the table name.
    
    指定者:
    
    storesUpperCaseQuotedIdentifiers 在接口中 DatabaseMetaData
    
    返回:
    
    false usually, and true in MySQL mode
    
    抛出:
    
    SQLException
  - storesLowerCaseQuotedIdentifiers
```
public boolean storesLowerCaseQuotedIdentifiers()
                                         throws SQLException
```
    Checks if for CREATE TABLE "Test"(ID INT), getTables returns test as the table name.
    
    指定者:
    
    storesLowerCaseQuotedIdentifiers 在接口中 DatabaseMetaData
    
    返回:
    
    false usually, and true in MySQL mode
    
    抛出:
    
    SQLException
  - storesMixedCaseQuotedIdentifiers
```
public boolean storesMixedCaseQuotedIdentifiers()
                                         throws SQLException
```
    Checks if for CREATE TABLE "Test"(ID INT), getTables returns Test as the table name.
    
    指定者:
    
    storesMixedCaseQuotedIdentifiers 在接口中 DatabaseMetaData
    
    返回:
    
    true usually, and false in MySQL mode
    
    抛出:
    
    SQLException
  - getMaxBinaryLiteralLength
```
public int getMaxBinaryLiteralLength()
```
    Returns the maximum length for hex values (characters).
    
    指定者:
    
    getMaxBinaryLiteralLength 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxCharLiteralLength
```
public int getMaxCharLiteralLength()
```
    Returns the maximum length for literals.
    
    指定者:
    
    getMaxCharLiteralLength 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxColumnNameLength
```
public int getMaxColumnNameLength()
```
    Returns the maximum length for column names.
    
    指定者:
    
    getMaxColumnNameLength 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxColumnsInGroupBy
```
public int getMaxColumnsInGroupBy()
```
    Returns the maximum number of columns in GROUP BY.
    
    指定者:
    
    getMaxColumnsInGroupBy 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxColumnsInIndex
```
public int getMaxColumnsInIndex()
```
    Returns the maximum number of columns in CREATE INDEX.
    
    指定者:
    
    getMaxColumnsInIndex 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxColumnsInOrderBy
```
public int getMaxColumnsInOrderBy()
```
    Returns the maximum number of columns in ORDER BY.
    
    指定者:
    
    getMaxColumnsInOrderBy 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxColumnsInSelect
```
public int getMaxColumnsInSelect()
```
    Returns the maximum number of columns in SELECT.
    
    指定者:
    
    getMaxColumnsInSelect 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxColumnsInTable
```
public int getMaxColumnsInTable()
```
    Returns the maximum number of columns in CREATE TABLE.
    
    指定者:
    
    getMaxColumnsInTable 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxConnections
```
public int getMaxConnections()
```
    Returns the maximum number of open connection.
    
    指定者:
    
    getMaxConnections 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxCursorNameLength
```
public int getMaxCursorNameLength()
```
    Returns the maximum length for a cursor name.
    
    指定者:
    
    getMaxCursorNameLength 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxIndexLength
```
public int getMaxIndexLength()
```
    Returns the maximum length for an index (in bytes).
    
    指定者:
    
    getMaxIndexLength 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxSchemaNameLength
```
public int getMaxSchemaNameLength()
```
    Returns the maximum length for a schema name.
    
    指定者:
    
    getMaxSchemaNameLength 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxProcedureNameLength
```
public int getMaxProcedureNameLength()
```
    Returns the maximum length for a procedure name.
    
    指定者:
    
    getMaxProcedureNameLength 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxCatalogNameLength
```
public int getMaxCatalogNameLength()
```
    Returns the maximum length for a catalog name.
    
    指定者:
    
    getMaxCatalogNameLength 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxRowSize
```
public int getMaxRowSize()
```
    Returns the maximum size of a row (in bytes).
    
    指定者:
    
    getMaxRowSize 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxStatementLength
```
public int getMaxStatementLength()
```
    Returns the maximum length of a statement.
    
    指定者:
    
    getMaxStatementLength 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxStatements
```
public int getMaxStatements()
```
    Returns the maximum number of open statements.
    
    指定者:
    
    getMaxStatements 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxTableNameLength
```
public int getMaxTableNameLength()
```
    Returns the maximum length for a table name.
    
    指定者:
    
    getMaxTableNameLength 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxTablesInSelect
```
public int getMaxTablesInSelect()
```
    Returns the maximum number of tables in a SELECT.
    
    指定者:
    
    getMaxTablesInSelect 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - getMaxUserNameLength
```
public int getMaxUserNameLength()
```
    Returns the maximum length for a user name.
    
    指定者:
    
    getMaxUserNameLength 在接口中 DatabaseMetaData
    
    返回:
    
    0 for limit is unknown
  - supportsSavepoints
```
public boolean supportsSavepoints()
```
    Does the database support savepoints.
    
    指定者:
    
    supportsSavepoints 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsNamedParameters
```
public boolean supportsNamedParameters()
```
    Does the database support named parameters.
    
    指定者:
    
    supportsNamedParameters 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsMultipleOpenResults
```
public boolean supportsMultipleOpenResults()
```
    Does the database support multiple open result sets.
    
    指定者:
    
    supportsMultipleOpenResults 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - supportsGetGeneratedKeys
```
public boolean supportsGetGeneratedKeys()
```
    Does the database support getGeneratedKeys.
    
    指定者:
    
    supportsGetGeneratedKeys 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - getSuperTypes
```
public ResultSet getSuperTypes(String catalog,
                               String schemaPattern,
                               String typeNamePattern)
                        throws SQLException
```
    [Not supported]
    
    指定者:
    
    getSuperTypes 在接口中 DatabaseMetaData
    
    抛出:
    
    SQLException
  - getSuperTables
```
public ResultSet getSuperTables(String catalog,
                                String schemaPattern,
                                String tableNamePattern)
                         throws SQLException
```
    Get the list of super tables of a table. This method currently returns an empty result set.
    - 1 TABLE_CAT (String) table catalog
    - 2 TABLE_SCHEM (String) table schema
    - 3 TABLE_NAME (String) table name
    - 4 SUPERTABLE_NAME (String) the name of the super table
    指定者:
    
    getSuperTables 在接口中 DatabaseMetaData
    
    参数:
    
    catalog - null (to get all objects) or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    tableNamePattern - null (to get all objects) or a table name pattern (uppercase for unquoted names)
    
    返回:
    
    an empty result set
    
    抛出:
    
    SQLException
  - getAttributes
```
public ResultSet getAttributes(String catalog,
                               String schemaPattern,
                               String typeNamePattern,
                               String attributeNamePattern)
                        throws SQLException
```
    [Not supported]
    
    指定者:
    
    getAttributes 在接口中 DatabaseMetaData
    
    抛出:
    
    SQLException
  - supportsResultSetHoldability
```
public boolean supportsResultSetHoldability(int holdability)
```
    Does this database supports a result set holdability.
    
    指定者:
    
    supportsResultSetHoldability 在接口中 DatabaseMetaData
    
    参数:
    
    holdability - ResultSet.HOLD_CURSORS_OVER_COMMIT or CLOSE_CURSORS_AT_COMMIT
    
    返回:
    
    true if the holdability is ResultSet.CLOSE_CURSORS_AT_COMMIT
  - getResultSetHoldability
```
public int getResultSetHoldability()
```
    Gets the result set holdability.
    
    指定者:
    
    getResultSetHoldability 在接口中 DatabaseMetaData
    
    返回:
    
    ResultSet.CLOSE_CURSORS_AT_COMMIT
  - getDatabaseMajorVersion
```
public int getDatabaseMajorVersion()
```
    Gets the major version of the database.
    
    指定者:
    
    getDatabaseMajorVersion 在接口中 DatabaseMetaData
    
    返回:
    
    the major version
  - getDatabaseMinorVersion
```
public int getDatabaseMinorVersion()
```
    Gets the minor version of the database.
    
    指定者:
    
    getDatabaseMinorVersion 在接口中 DatabaseMetaData
    
    返回:
    
    the minor version
  - getJDBCMajorVersion
```
public int getJDBCMajorVersion()
```
    Gets the major version of the supported JDBC API.
    
    指定者:
    
    getJDBCMajorVersion 在接口中 DatabaseMetaData
    
    返回:
    
    the major version (4)
  - getJDBCMinorVersion
```
public int getJDBCMinorVersion()
```
    Gets the minor version of the supported JDBC API.
    
    指定者:
    
    getJDBCMinorVersion 在接口中 DatabaseMetaData
    
    返回:
    
    the minor version (0)
  - getSQLStateType
```
public int getSQLStateType()
```
    Gets the SQL State type.
    
    指定者:
    
    getSQLStateType 在接口中 DatabaseMetaData
    
    返回:
    
    DatabaseMetaData.sqlStateSQL99
  - locatorsUpdateCopy
```
public boolean locatorsUpdateCopy()
```
    Does the database make a copy before updating.
    
    指定者:
    
    locatorsUpdateCopy 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - supportsStatementPooling
```
public boolean supportsStatementPooling()
```
    Does the database support statement pooling.
    
    指定者:
    
    supportsStatementPooling 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - getRowIdLifetime
```
public RowIdLifetime getRowIdLifetime()
```
    Get the lifetime of a rowid.
    
    指定者:
    
    getRowIdLifetime 在接口中 DatabaseMetaData
    
    返回:
    
    ROWID_UNSUPPORTED
  - getSchemas
```
public ResultSet getSchemas(String catalogPattern,
                            String schemaPattern)
                     throws SQLException
```
    Gets the list of schemas in the database. The result set is sorted by TABLE_SCHEM.
    - 1 TABLE_SCHEM (String) schema name
    - 2 TABLE_CATALOG (String) catalog name
    - 3 IS_DEFAULT (boolean) if this is the default schema
    指定者:
    
    getSchemas 在接口中 DatabaseMetaData
    
    参数:
    
    catalogPattern - null (to get all objects) or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    返回:
    
    the schema list
    
    抛出:
    
    SQLException - if the connection is closed
  - supportsStoredFunctionsUsingCallSyntax
```
public boolean supportsStoredFunctionsUsingCallSyntax()
```
    Returns whether the database supports calling functions using the call syntax.
    
    指定者:
    
    supportsStoredFunctionsUsingCallSyntax 在接口中 DatabaseMetaData
    
    返回:
    
    true
  - autoCommitFailureClosesAllResultSets
```
public boolean autoCommitFailureClosesAllResultSets()
```
    Returns whether an exception while auto commit is on closes all result sets.
    
    指定者:
    
    autoCommitFailureClosesAllResultSets 在接口中 DatabaseMetaData
    
    返回:
    
    false
  - getClientInfoProperties
```
public ResultSet getClientInfoProperties()
                                  throws SQLException
```
    指定者:
    
    getClientInfoProperties 在接口中 DatabaseMetaData
    
    抛出:
    
    SQLException
  - unwrap
```
public <T> T unwrap(Class<T> iface)
             throws SQLException
```
    Return an object of this class if possible.
    
    指定者:
    
    unwrap 在接口中 Wrapper
    
    参数:
    
    iface - the class
    
    返回:
    
    this
    
    抛出:
    
    SQLException
  - isWrapperFor
```
public boolean isWrapperFor(Class<?> iface)
                     throws SQLException
```
    Checks if unwrap can return an object of this class.
    
    指定者:
    
    isWrapperFor 在接口中 Wrapper
    
    参数:
    
    iface - the class
    
    返回:
    
    whether or not the interface is assignable from this class
    
    抛出:
    
    SQLException
  - getFunctionColumns
```
public ResultSet getFunctionColumns(String catalog,
                                    String schemaPattern,
                                    String functionNamePattern,
                                    String columnNamePattern)
                             throws SQLException
```
    [Not supported] Gets the list of function columns.
    
    指定者:
    
    getFunctionColumns 在接口中 DatabaseMetaData
    
    抛出:
    
    SQLException
  - getFunctions
```
public ResultSet getFunctions(String catalog,
                              String schemaPattern,
                              String functionNamePattern)
                       throws SQLException
```
    [Not supported] Gets the list of functions.
    
    指定者:
    
    getFunctions 在接口中 DatabaseMetaData
    
    抛出:
    
    SQLException
  - generatedKeyAlwaysReturned
```
public boolean generatedKeyAlwaysReturned()
```
    [Not supported]
    
    指定者:
    
    generatedKeyAlwaysReturned 在接口中 DatabaseMetaData
  - getPseudoColumns
```
public ResultSet getPseudoColumns(String catalog,
                                  String schemaPattern,
                                  String tableNamePattern,
                                  String columnNamePattern)
```
    [Not supported]
    
    指定者:
    
    getPseudoColumns 在接口中 DatabaseMetaData
    
    参数:
    
    catalog - null (to get all objects) or the catalog name
    
    schemaPattern - null (to get all objects) or a schema name (uppercase for unquoted names)
    
    tableNamePattern - null (to get all objects) or a table name (uppercase for unquoted names)
    
    columnNamePattern - null (to get all objects) or a column name (uppercase for unquoted names)
  - toString
```
public String toString()
```
    INTERNAL
    
    覆盖:
    
    toString 在类中 Object

类 JdbcDatabaseMetaData

字段概要

从类继承的字段 org.h2.message.TraceObject

从接口继承的字段 java.sql.DatabaseMetaData

方法概要

从类继承的方法 org.h2.message.TraceObject

从类继承的方法 java.lang.Object

从接口继承的方法 java.sql.DatabaseMetaData

方法详细资料

getDriverMajorVersion

getDriverMinorVersion

getDatabaseProductName

getDatabaseProductVersion

getDriverName

getDriverVersion

getTables

getColumns

getIndexInfo

getPrimaryKeys

allProceduresAreCallable

allTablesAreSelectable

getURL

getUserName

isReadOnly

nullsAreSortedHigh

nullsAreSortedLow

nullsAreSortedAtStart

nullsAreSortedAtEnd

getConnection

getProcedures

getProcedureColumns

getSchemas

getCatalogs

getTableTypes

getColumnPrivileges

getTablePrivileges

getBestRowIdentifier

getVersionColumns

getImportedKeys

getExportedKeys

getCrossReference

getUDTs

getTypeInfo

usesLocalFiles

usesLocalFilePerTable

getIdentifierQuoteString

getSQLKeywords

getNumericFunctions

getStringFunctions

getSystemFunctions

getTimeDateFunctions

getSearchStringEscape

getExtraNameCharacters

supportsAlterTableWithAddColumn

supportsAlterTableWithDropColumn

supportsColumnAliasing

nullPlusNonNullIsNull

supportsConvert

supportsConvert

supportsTableCorrelationNames

supportsDifferentTableCorrelationNames

supportsExpressionsInOrderBy

supportsOrderByUnrelated

supportsGroupBy

supportsGroupByUnrelated

supportsGroupByBeyondSelect

supportsLikeEscapeClause

supportsMultipleResultSets

supportsMultipleTransactions

supportsNonNullableColumns

supportsMinimumSQLGrammar

supportsCoreSQLGrammar

supportsExtendedSQLGrammar

supportsANSI92EntryLevelSQL

supportsANSI92IntermediateSQL

supportsANSI92FullSQL

supportsIntegrityEnhancementFacility

supportsOuterJoins

supportsFullOuterJoins

supportsLimitedOuterJoins