Class DatabaseMetaData
- All Implemented Interfaces:
DatabaseMetaData,Wrapper
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Field Summary
FieldsFields inherited from interface java.sql.DatabaseMetaData
attributeNoNulls, attributeNullable, attributeNullableUnknown, bestRowNotPseudo, bestRowPseudo, bestRowSession, bestRowTemporary, bestRowTransaction, bestRowUnknown, columnNoNulls, columnNullable, columnNullableUnknown, functionColumnIn, functionColumnInOut, functionColumnOut, functionColumnResult, functionColumnUnknown, functionNoNulls, functionNoTable, functionNullable, functionNullableUnknown, functionResultUnknown, functionReturn, functionReturnsTable, importedKeyCascade, importedKeyInitiallyDeferred, importedKeyInitiallyImmediate, importedKeyNoAction, importedKeyNotDeferrable, importedKeyRestrict, importedKeySetDefault, importedKeySetNull, procedureColumnIn, procedureColumnInOut, procedureColumnOut, procedureColumnResult, procedureColumnReturn, procedureColumnUnknown, procedureNoNulls, procedureNoResult, procedureNullable, procedureNullableUnknown, procedureResultUnknown, procedureReturnsResult, sqlStateSQL, sqlStateSQL99, sqlStateXOpen, tableIndexClustered, tableIndexHashed, tableIndexOther, tableIndexStatistic, typeNoNulls, typeNullable, typeNullableUnknown, typePredBasic, typePredChar, typePredNone, typeSearchable, versionColumnNotPseudo, versionColumnPseudo, versionColumnUnknown -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionbooleanbooleanbooleanbooleanbooleanbooleandeletesAreDetected(int type) booleanstatic StringescapeString(String value, boolean noBackslashEscapes) Escape String.booleangetAttributes(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.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.Retrieves a list of the client info properties that the driver supports.getColumnPrivileges(String catalog, String schema, String table, String columnNamePattern) Retrieves a description of the access rights for a table's columns.getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) Retrieves a description of table columns available in the specified catalog.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).intintReturn Server type.intintintgetExportedKeys(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).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.getFunctions(String catalog, String schemaPattern, String functionNamePattern) Retrieves a description of the system and user functions available in the given catalog.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).getImportedKeysUsingInformationSchema(String database, String table) GetImportedKeysUsingInformationSchema.getImportedKeysUsingShowCreateTable(String database, String table) GetImportedKeysUsingShowCreateTable.getIndexInfo(String catalog, String schema, String table, boolean unique, boolean approximate) Retrieves a description of the given table's indices and statistics.intintintintintintintintintintintintintintlongintintintintintintintintList of numeric functions.getPrimaryKeys(String catalog, String schema, String table) Retrieves a description of the given table's primary key columns.getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern) Retrieves a description of the given catalog's stored procedure parameter and result columns.getProcedures(String catalog, String schemaPattern, String procedureNamePattern) Retrieves a description of the stored procedures available in the given catalog.getPseudoColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) Retrieves a description of the pseudo or hidden columns available in a given table within the specified catalog and schema.intgetSchemas(String catalog, String schemaPattern) Retrieves a comma-separated list of all of this database's SQL keywords that are NOT also SQL:2003 keywords.intList of string functions.getSuperTables(String catalog, String schemaPattern, String tableNamePattern) Retrieves a description of the table hierarchies defined in a particular schema in this database.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.List of system functions.getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern) Retrieves a description of the access rights for each table available in a catalog.Retrieves a description of the tables available in the given catalog.List of time and date functions.Retrieves a description of all the data types supported by this database.Retrieves a description of the user-defined types (UDTs) defined in a particular schema.getURL()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.booleaninsertsAreDetected(int type) booleanbooleanbooleanisWrapperFor(Class<?> iface) booleanbooleanbooleanbooleanbooleanbooleanbooleanothersDeletesAreVisible(int type) booleanothersInsertsAreVisible(int type) booleanothersUpdatesAreVisible(int type) booleanownDeletesAreVisible(int type) booleanownInsertsAreVisible(int type) booleanownUpdatesAreVisible(int type) booleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleansupportsConvert(int fromType, int toType) Retrieves whether this database supports the JDBC scalar function CONVERT for conversions between the JDBC types fromType and toType.booleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleansupportsResultSetConcurrency(int type, int concurrency) Retrieves whether this database supports the given concurrency type in combination with the given result set type.booleansupportsResultSetHoldability(int holdability) booleansupportsResultSetType(int type) Retrieves whether this database supports the given result set type.booleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleanbooleansupportsTransactionIsolationLevel(int level) Retrieves whether this database supports the given transaction isolation level.booleanRetrieves whether this database supports transactions.booleanboolean<T> TbooleanupdatesAreDetected(int type) booleanbooleanMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface java.sql.DatabaseMetaData
supportsRefCursors, supportsSharding
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Field Details
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DRIVER_NAME
MariaDB driver name- See Also:
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Constructor Details
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DatabaseMetaData
Constructor.- Parameters:
connection- connectionconf- configuration
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Method Details
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escapeString
Escape String.- Parameters:
value- value to escapenoBackslashEscapes- must backslash be escaped- Returns:
- escaped string.
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getImportedKeys
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). They are ordered by PKTABLE_CAT, PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ.Each primary key column description has the following columns:
- PKTABLE_CAT String
=>primary key table catalog being imported (may benull) - PKTABLE_SCHEM String
=>primary key table schema being imported (may benull) - PKTABLE_NAME String
=>primary key table name being imported - PKCOLUMN_NAME String
=>primary key column name being imported - FKTABLE_CAT String
=>foreign key table catalog (may benull) - FKTABLE_SCHEM String
=>foreign key table schema (may benull) - FKTABLE_NAME String
=>foreign key table name - FKCOLUMN_NAME String
=>foreign key column name - KEY_SEQ short
=>sequence number within a foreign key( a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key). - UPDATE_RULE short
=>What happens to a foreign key when the primary key is updated:- importedNoAction - do not allow update of primary key if it has been imported
- importedKeyCascade - change imported key to agree with primary key update
- importedKeySetNull - change imported key to
NULLif its primary key has been updated - importedKeySetDefault - change imported key to default values if its primary key has been updated
- importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
- DELETE_RULE short
=>What happens to the foreign key when primary is deleted.- importedKeyNoAction - do not allow delete of primary key if it has been imported
- importedKeyCascade - delete rows that import a deleted key
- importedKeySetNull - change imported key to NULL if its primary key has been deleted
- importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
- importedKeySetDefault - change imported key to default if its primary key has been deleted
- FK_NAME String
=>foreign key name (may benull) - PK_NAME String
=>primary key name (may benull) - DEFERRABILITY short
=>can the evaluation of foreign key constraints be deferred until commit- importedKeyInitiallyDeferred - see SQL92 for definition
- importedKeyInitiallyImmediate - see SQL92 for definition
- importedKeyNotDeferrable - see SQL92 for definition
- Specified by:
getImportedKeysin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschema- a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtable- a table name; must match the table name as it is stored in the database- Returns:
ResultSet- each row is a primary key column description- Throws:
SQLException- if a database access error occurs- See Also:
- PKTABLE_CAT String
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getPrimaryKeys
Retrieves a description of the given table's primary key columns. They are ordered by COLUMN_NAME.Each primary key column description has the following columns:
- TABLE_CAT String
=>table catalog - TABLE_SCHEM String
=>table schema (may benull) - TABLE_NAME String
=>table name - COLUMN_NAME String
=>column name - KEY_SEQ short
=>sequence number within primary key( a value of 1 represents the first column of the primary key, a value of 2 would represent the second column within the primary key). - PK_NAME String
=>primary key name
- Specified by:
getPrimaryKeysin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschema- a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtable- a table name; must match the table name as it is stored in the database- Returns:
ResultSet- each row is a primary key column description- Throws:
SQLException- if a database access error occurs
- TABLE_CAT String
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getTables
public ResultSet getTables(String catalog, String schemaPattern, String tableNamePattern, String[] types) throws SQLException Retrieves a description of the tables available in the given catalog. Only table descriptions matching the catalog, schema, table name and type criteria are returned. They are ordered byTABLE_TYPE,TABLE_CAT,TABLE_SCHEMandTABLE_NAME. Each table description has the following columns:- TABLE_CAT String
=>table catalog (may benull) - TABLE_SCHEM String
=>table schema (may benull) - TABLE_NAME String
=>table name - TABLE_TYPE String
=>table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM". - REMARKS String
=>explanatory comment on the table - TYPE_CAT String
=>the types catalog (may benull) - TYPE_SCHEM String
=>the types schema (may benull) - TYPE_NAME String
=>type name (may benull) - SELF_REFERENCING_COL_NAME String
=>name of the designated "identifier" column of a typed table (may benull) - REF_GENERATION String
=>specifies how values in SELF_REFERENCING_COL_NAME are created. Values are "SYSTEM", "USER", "DERIVED". (may benull)
Note: Some databases may not return information for all tables.
- Specified by:
getTablesin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschemaPattern- a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtableNamePattern- a table name pattern; must match the table name as it is stored in the databasetypes- a list of table types, which must be from the list of table types returned fromgetTableTypes(),to include;nullreturns all types- Returns:
ResultSet- each row is a table description- Throws:
SQLException- if a database access error occurs- See Also:
- TABLE_CAT String
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getColumns
public ResultSet getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) throws SQLException Retrieves a description of table columns available in the specified catalog.Only column descriptions matching the catalog, schema, table and column name criteria are returned. They are ordered by
TABLE_CAT,TABLE_SCHEM,TABLE_NAME, andORDINAL_POSITION.Each column description has the following columns:
- TABLE_CAT String
=>table catalog (may benull) - TABLE_SCHEM String
=>table schema (may benull) - TABLE_NAME String
=>table name - COLUMN_NAME String
=>column name - DATA_TYPE int
=>SQL type from java.sql.Types - TYPE_NAME String
=>Data source dependent type name, for a UDT the type name is fully qualified - COLUMN_SIZE int
=>column size. - BUFFER_LENGTH is not used.
- DECIMAL_DIGITS int
=>the number of fractional digits. Null is returned for data types where DECIMAL_DIGITS is not applicable. - NUM_PREC_RADIX int
=>Radix (typically either 10 or 2) - NULLABLE int
=>is NULL allowed.- columnNoNulls - might not allow
NULLvalues - columnNullable - definitely allows
NULLvalues - columnNullableUnknown - nullability unknown
- columnNoNulls - might not allow
- REMARKS String
=>comment describing column (may benull) - COLUMN_DEF String
=>default value for the column, which should be interpreted as a string when the value is enclosed in single quotes (may benull) - SQL_DATA_TYPE int
=>unused - SQL_DATETIME_SUB int
=>unused - CHAR_OCTET_LENGTH int
=>for char types the maximum number of bytes in the column - ORDINAL_POSITION int
=>index of column in table (starting at 1) - IS_NULLABLE String
=>ISO rules are used to determine the nullability for a column.- YES --- if the column can include NULLs
- NO --- if the column cannot include NULLs
- empty string --- if the nullability for the column is unknown
- SCOPE_CATALOG String
=>catalog of table that is the scope of a reference attribute (nullif DATA_TYPE isn't REF) - SCOPE_SCHEMA String
=>schema of table that is the scope of a reference attribute (nullif the DATA_TYPE isn't REF) - SCOPE_TABLE String
=>table name that this the scope of a reference attribute (nullif the DATA_TYPE isn't REF) - SOURCE_DATA_TYPE short
=>source type of a distinct type or user-generated Ref type, SQL type from java.sql.Types (nullif DATA_TYPE isn't DISTINCT or user-generated REF) - IS_AUTOINCREMENT String
=>Indicates whether this column is auto incremented- YES --- if the column is auto incremented
- NO --- if the column is not auto incremented
- empty string --- if it cannot be determined whether the column is auto incremented
- IS_GENERATEDCOLUMN String
=>Indicates whether this is a generated column- YES --- if this a generated column
- NO --- if this not a generated column
- empty string --- if it cannot be determined whether this is a generated column
The COLUMN_SIZE column specifies the column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
- Specified by:
getColumnsin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschemaPattern- a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtableNamePattern- a table name pattern; must match the table name as it is stored in the databasecolumnNamePattern- a column name pattern; must match the column name as it is stored in the database- Returns:
ResultSet- each row is a column description- Throws:
SQLException- if a database access error occurs- See Also:
- TABLE_CAT String
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getExportedKeys
Retrieves a description of the foreign key columns that reference the given table's primary key columns (the foreign keys exported by a table). They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.Each foreign key column description has the following columns:
- PKTABLE_CAT String
=>primary key table catalog (may benull) - PKTABLE_SCHEM String
=>primary key table schema (may benull) - PKTABLE_NAME String
=>primary key table name - PKCOLUMN_NAME String
=>primary key column name - FKTABLE_CAT String
=>foreign key table catalog (may benull) being exported (may benull) - FKTABLE_SCHEM String
=>foreign key table schema (may benull) being exported (may benull) - FKTABLE_NAME String
=>foreign key table name being exported - FKCOLUMN_NAME String
=>foreign key column name being exported - KEY_SEQ short
=>sequence number within foreign key( a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key). - UPDATE_RULE short
=>What happens to foreign key when primary is updated:- importedNoAction - do not allow update of primary key if it has been imported
- importedKeyCascade - change imported key to agree with primary key update
- importedKeySetNull - change imported key to
NULLif its primary key has been updated - importedKeySetDefault - change imported key to default values if its primary key has been updated
- importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
- DELETE_RULE short
=>What happens to the foreign key when primary is deleted.- importedKeyNoAction - do not allow delete of primary key if it has been imported
- importedKeyCascade - delete rows that import a deleted key
- importedKeySetNull - change imported key to
NULLif its primary key has been deleted - importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
- importedKeySetDefault - change imported key to default if its primary key has been deleted
- FK_NAME String
=>foreign key name (may benull) - PK_NAME String
=>primary key name (may benull) - DEFERRABILITY short
=>can the evaluation of foreign key constraints be deferred until commit- importedKeyInitiallyDeferred - see SQL92 for definition
- importedKeyInitiallyImmediate - see SQL92 for definition
- importedKeyNotDeferrable - see SQL92 for definition
- Specified by:
getExportedKeysin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in this database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschema- a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtable- a table name; must match the table name as it is stored in this database- Returns:
- a
ResultSetobject in which each row is a foreign key column description - Throws:
SQLException- if a database access error occurs- See Also:
- PKTABLE_CAT String
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getImportedKeysUsingInformationSchema
public ResultSet getImportedKeysUsingInformationSchema(String database, String table) throws SQLException GetImportedKeysUsingInformationSchema.- Parameters:
database- databasetable- table- Returns:
- resultset
- Throws:
SQLException- exception
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getImportedKeysUsingShowCreateTable
public ResultSet getImportedKeysUsingShowCreateTable(String database, String table) throws Exception GetImportedKeysUsingShowCreateTable.- Parameters:
database- databasetable- table- Returns:
- resultset
- Throws:
Exception- exception
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getBestRowIdentifier
public ResultSet getBestRowIdentifier(String catalog, String schema, String table, int scope, boolean nullable) throws SQLException Retrieves a description of a table's optimal set of columns that uniquely identifies a row. They are ordered by SCOPE.Each column description has the following columns:
- SCOPE short
=>actual scope of result- bestRowTemporary - very temporary, while using row
- bestRowTransaction - valid for remainder of current transaction
- bestRowSession - valid for remainder of current session
- COLUMN_NAME String
=>column name - DATA_TYPE int
=>SQL data type from java.sql.Types - TYPE_NAME String
=>Data source dependent type name, for a UDT the type name is fully qualified - COLUMN_SIZE int
=>precision - BUFFER_LENGTH int
=>not used - DECIMAL_DIGITS short
=>scale - Null is returned for data types where DECIMAL_DIGITS is not applicable. - PSEUDO_COLUMN short
=>is this a pseudo column like an Oracle ROWID- bestRowUnknown - may or may not be pseudo column
- bestRowNotPseudo - is NOT a pseudo column
- bestRowPseudo - is a pseudo column
The COLUMN_SIZE column represents the specified column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
- Specified by:
getBestRowIdentifierin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschema- a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtable- a table name; must match the table name as it is stored in the databasescope- the scope of interest; use same values as SCOPEnullable- include columns that are nullable.- Returns:
ResultSet- each row is a column description- Throws:
SQLException- if a database access error occurs
- SCOPE short
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generatedKeyAlwaysReturned
public boolean generatedKeyAlwaysReturned()- Specified by:
generatedKeyAlwaysReturnedin interfaceDatabaseMetaData
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getPseudoColumns
public ResultSet getPseudoColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) throws SQLException Retrieves a description of the pseudo or hidden columns available in a given table within the specified catalog and schema. Pseudo or hidden columns may not always be stored within a table and are not visible in a ResultSet unless they are specified in the query's outermost SELECT list. Pseudo or hidden columns may not necessarily be able to be modified. If there are no pseudo or hidden columns, an empty ResultSet is returned.Only column descriptions matching the catalog, schema, table and column name criteria are returned. They are ordered by
TABLE_CAT,TABLE_SCHEM,TABLE_NAMEandCOLUMN_NAME.Each column description has the following columns:
- TABLE_CAT String
=>table catalog (may benull) - TABLE_SCHEM String
=>table schema (may benull) - TABLE_NAME String
=>table name - COLUMN_NAME String
=>column name - DATA_TYPE int
=>SQL type from java.sql.Types - COLUMN_SIZE int
=>column size. - DECIMAL_DIGITS int
=>the number of fractional digits. Null is returned for data types where DECIMAL_DIGITS is not applicable. - NUM_PREC_RADIX int
=>Radix (typically either 10 or 2) - COLUMN_USAGE String
=>The allowed usage for the column. The value returned will correspond to the enum name returned by PseudoColumnUsage.name() - REMARKS String
=>comment describing column (may benull) - CHAR_OCTET_LENGTH int
=>for char types the maximum number of bytes in the column - IS_NULLABLE String
=>ISO rules are used to determine the nullability for a column.- YES --- if the column can include NULLs
- NO --- if the column cannot include NULLs
- empty string --- if the nullability for the column is unknown
The COLUMN_SIZE column specifies the column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
- Specified by:
getPseudoColumnsin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschemaPattern- a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtableNamePattern- a table name pattern; must match the table name as it is stored in the databasecolumnNamePattern- a column name pattern; must match the column name as it is stored in the database- Returns:
ResultSet- each row is a column description- Throws:
SQLException- if a database access error occurs- Since:
- 1.7
- See Also:
- TABLE_CAT String
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allProceduresAreCallable
public boolean allProceduresAreCallable()- Specified by:
allProceduresAreCallablein interfaceDatabaseMetaData
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allTablesAreSelectable
public boolean allTablesAreSelectable()- Specified by:
allTablesAreSelectablein interfaceDatabaseMetaData
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getURL
- Specified by:
getURLin interfaceDatabaseMetaData
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getUserName
- Specified by:
getUserNamein interfaceDatabaseMetaData
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isReadOnly
- Specified by:
isReadOnlyin interfaceDatabaseMetaData- Throws:
SQLException
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nullsAreSortedHigh
public boolean nullsAreSortedHigh()- Specified by:
nullsAreSortedHighin interfaceDatabaseMetaData
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nullsAreSortedLow
public boolean nullsAreSortedLow()- Specified by:
nullsAreSortedLowin interfaceDatabaseMetaData
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nullsAreSortedAtStart
public boolean nullsAreSortedAtStart()- Specified by:
nullsAreSortedAtStartin interfaceDatabaseMetaData
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nullsAreSortedAtEnd
public boolean nullsAreSortedAtEnd()- Specified by:
nullsAreSortedAtEndin interfaceDatabaseMetaData
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getDatabaseProductName
Return Server type. MySQL or MariaDB. MySQL can be forced for compatibility with option "useMysqlMetadata"- Specified by:
getDatabaseProductNamein interfaceDatabaseMetaData- Returns:
- server type
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getDatabaseProductVersion
- Specified by:
getDatabaseProductVersionin interfaceDatabaseMetaData
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getDriverName
- Specified by:
getDriverNamein interfaceDatabaseMetaData
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getDriverVersion
- Specified by:
getDriverVersionin interfaceDatabaseMetaData
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getDriverMajorVersion
public int getDriverMajorVersion()- Specified by:
getDriverMajorVersionin interfaceDatabaseMetaData
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getDriverMinorVersion
public int getDriverMinorVersion()- Specified by:
getDriverMinorVersionin interfaceDatabaseMetaData
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usesLocalFiles
public boolean usesLocalFiles()- Specified by:
usesLocalFilesin interfaceDatabaseMetaData
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usesLocalFilePerTable
public boolean usesLocalFilePerTable()- Specified by:
usesLocalFilePerTablein interfaceDatabaseMetaData
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supportsMixedCaseIdentifiers
- Specified by:
supportsMixedCaseIdentifiersin interfaceDatabaseMetaData- Throws:
SQLException
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storesUpperCaseIdentifiers
public boolean storesUpperCaseIdentifiers()- Specified by:
storesUpperCaseIdentifiersin interfaceDatabaseMetaData
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storesLowerCaseIdentifiers
- Specified by:
storesLowerCaseIdentifiersin interfaceDatabaseMetaData- Throws:
SQLException
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storesMixedCaseIdentifiers
- Specified by:
storesMixedCaseIdentifiersin interfaceDatabaseMetaData- Throws:
SQLException
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supportsMixedCaseQuotedIdentifiers
- Specified by:
supportsMixedCaseQuotedIdentifiersin interfaceDatabaseMetaData- Throws:
SQLException
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storesUpperCaseQuotedIdentifiers
public boolean storesUpperCaseQuotedIdentifiers()- Specified by:
storesUpperCaseQuotedIdentifiersin interfaceDatabaseMetaData
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storesLowerCaseQuotedIdentifiers
- Specified by:
storesLowerCaseQuotedIdentifiersin interfaceDatabaseMetaData- Throws:
SQLException
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storesMixedCaseQuotedIdentifiers
- Specified by:
storesMixedCaseQuotedIdentifiersin interfaceDatabaseMetaData- Throws:
SQLException
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getIdentifierQuoteString
- Specified by:
getIdentifierQuoteStringin interfaceDatabaseMetaData
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getSQLKeywords
Retrieves a comma-separated list of all of this database's SQL keywords that are NOT also SQL:2003 keywords.- Specified by:
getSQLKeywordsin interfaceDatabaseMetaData- Returns:
- the list of this database's keywords that are not also SQL:2003 keywords
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getNumericFunctions
List of numeric functions.- Specified by:
getNumericFunctionsin interfaceDatabaseMetaData- Returns:
- List of numeric functions.
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getStringFunctions
List of string functions.- Specified by:
getStringFunctionsin interfaceDatabaseMetaData- Returns:
- List of string functions.
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getSystemFunctions
List of system functions.- Specified by:
getSystemFunctionsin interfaceDatabaseMetaData- Returns:
- List of system functions.
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getTimeDateFunctions
List of time and date functions.- Specified by:
getTimeDateFunctionsin interfaceDatabaseMetaData- Returns:
- List of time and date functions.
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getSearchStringEscape
- Specified by:
getSearchStringEscapein interfaceDatabaseMetaData
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getExtraNameCharacters
- Specified by:
getExtraNameCharactersin interfaceDatabaseMetaData
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supportsAlterTableWithAddColumn
public boolean supportsAlterTableWithAddColumn()- Specified by:
supportsAlterTableWithAddColumnin interfaceDatabaseMetaData
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supportsAlterTableWithDropColumn
public boolean supportsAlterTableWithDropColumn()- Specified by:
supportsAlterTableWithDropColumnin interfaceDatabaseMetaData
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supportsColumnAliasing
public boolean supportsColumnAliasing()- Specified by:
supportsColumnAliasingin interfaceDatabaseMetaData
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nullPlusNonNullIsNull
public boolean nullPlusNonNullIsNull()- Specified by:
nullPlusNonNullIsNullin interfaceDatabaseMetaData
-
supportsConvert
public boolean supportsConvert()- Specified by:
supportsConvertin interfaceDatabaseMetaData
-
supportsConvert
public 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. The JDBC types are the generic SQL data types defined in java.sql.Types.- Specified by:
supportsConvertin interfaceDatabaseMetaData- Parameters:
fromType- the type to convert from; one of the type codes from the class java.sql.TypestoType- the type to convert to; one of the type codes from the class java.sql.Types- Returns:
- true if so; false otherwise
-
supportsTableCorrelationNames
public boolean supportsTableCorrelationNames()- Specified by:
supportsTableCorrelationNamesin interfaceDatabaseMetaData
-
supportsDifferentTableCorrelationNames
public boolean supportsDifferentTableCorrelationNames()- Specified by:
supportsDifferentTableCorrelationNamesin interfaceDatabaseMetaData
-
supportsExpressionsInOrderBy
public boolean supportsExpressionsInOrderBy()- Specified by:
supportsExpressionsInOrderByin interfaceDatabaseMetaData
-
supportsGroupBy
public boolean supportsGroupBy()- Specified by:
supportsGroupByin interfaceDatabaseMetaData
-
supportsGroupByBeyondSelect
public boolean supportsGroupByBeyondSelect()- Specified by:
supportsGroupByBeyondSelectin interfaceDatabaseMetaData
-
supportsLikeEscapeClause
public boolean supportsLikeEscapeClause()- Specified by:
supportsLikeEscapeClausein interfaceDatabaseMetaData
-
supportsMultipleResultSets
public boolean supportsMultipleResultSets()- Specified by:
supportsMultipleResultSetsin interfaceDatabaseMetaData
-
supportsMultipleTransactions
public boolean supportsMultipleTransactions()- Specified by:
supportsMultipleTransactionsin interfaceDatabaseMetaData
-
supportsNonNullableColumns
public boolean supportsNonNullableColumns()- Specified by:
supportsNonNullableColumnsin interfaceDatabaseMetaData
-
supportsMinimumSQLGrammar
public boolean supportsMinimumSQLGrammar()- Specified by:
supportsMinimumSQLGrammarin interfaceDatabaseMetaData
-
supportsCoreSQLGrammar
public boolean supportsCoreSQLGrammar()- Specified by:
supportsCoreSQLGrammarin interfaceDatabaseMetaData
-
supportsExtendedSQLGrammar
public boolean supportsExtendedSQLGrammar()- Specified by:
supportsExtendedSQLGrammarin interfaceDatabaseMetaData
-
supportsANSI92EntryLevelSQL
public boolean supportsANSI92EntryLevelSQL()- Specified by:
supportsANSI92EntryLevelSQLin interfaceDatabaseMetaData
-
supportsANSI92IntermediateSQL
public boolean supportsANSI92IntermediateSQL()- Specified by:
supportsANSI92IntermediateSQLin interfaceDatabaseMetaData
-
supportsANSI92FullSQL
public boolean supportsANSI92FullSQL()- Specified by:
supportsANSI92FullSQLin interfaceDatabaseMetaData
-
supportsIntegrityEnhancementFacility
public boolean supportsIntegrityEnhancementFacility()- Specified by:
supportsIntegrityEnhancementFacilityin interfaceDatabaseMetaData
-
supportsOuterJoins
public boolean supportsOuterJoins()- Specified by:
supportsOuterJoinsin interfaceDatabaseMetaData
-
supportsFullOuterJoins
public boolean supportsFullOuterJoins()- Specified by:
supportsFullOuterJoinsin interfaceDatabaseMetaData
-
supportsLimitedOuterJoins
public boolean supportsLimitedOuterJoins()- Specified by:
supportsLimitedOuterJoinsin interfaceDatabaseMetaData
-
getSchemaTerm
- Specified by:
getSchemaTermin interfaceDatabaseMetaData
-
getProcedureTerm
- Specified by:
getProcedureTermin interfaceDatabaseMetaData
-
getCatalogTerm
- Specified by:
getCatalogTermin interfaceDatabaseMetaData
-
isCatalogAtStart
public boolean isCatalogAtStart()- Specified by:
isCatalogAtStartin interfaceDatabaseMetaData
-
getCatalogSeparator
- Specified by:
getCatalogSeparatorin interfaceDatabaseMetaData
-
supportsSchemasInDataManipulation
public boolean supportsSchemasInDataManipulation()- Specified by:
supportsSchemasInDataManipulationin interfaceDatabaseMetaData
-
supportsSchemasInProcedureCalls
public boolean supportsSchemasInProcedureCalls()- Specified by:
supportsSchemasInProcedureCallsin interfaceDatabaseMetaData
-
supportsSchemasInTableDefinitions
public boolean supportsSchemasInTableDefinitions()- Specified by:
supportsSchemasInTableDefinitionsin interfaceDatabaseMetaData
-
supportsSchemasInIndexDefinitions
public boolean supportsSchemasInIndexDefinitions()- Specified by:
supportsSchemasInIndexDefinitionsin interfaceDatabaseMetaData
-
supportsSchemasInPrivilegeDefinitions
public boolean supportsSchemasInPrivilegeDefinitions()- Specified by:
supportsSchemasInPrivilegeDefinitionsin interfaceDatabaseMetaData
-
supportsCatalogsInDataManipulation
public boolean supportsCatalogsInDataManipulation()- Specified by:
supportsCatalogsInDataManipulationin interfaceDatabaseMetaData
-
supportsCatalogsInProcedureCalls
public boolean supportsCatalogsInProcedureCalls()- Specified by:
supportsCatalogsInProcedureCallsin interfaceDatabaseMetaData
-
supportsCatalogsInTableDefinitions
public boolean supportsCatalogsInTableDefinitions()- Specified by:
supportsCatalogsInTableDefinitionsin interfaceDatabaseMetaData
-
supportsCatalogsInIndexDefinitions
public boolean supportsCatalogsInIndexDefinitions()- Specified by:
supportsCatalogsInIndexDefinitionsin interfaceDatabaseMetaData
-
supportsCatalogsInPrivilegeDefinitions
public boolean supportsCatalogsInPrivilegeDefinitions()- Specified by:
supportsCatalogsInPrivilegeDefinitionsin interfaceDatabaseMetaData
-
supportsPositionedDelete
public boolean supportsPositionedDelete()- Specified by:
supportsPositionedDeletein interfaceDatabaseMetaData
-
supportsPositionedUpdate
public boolean supportsPositionedUpdate()- Specified by:
supportsPositionedUpdatein interfaceDatabaseMetaData
-
supportsSelectForUpdate
public boolean supportsSelectForUpdate()- Specified by:
supportsSelectForUpdatein interfaceDatabaseMetaData
-
supportsStoredProcedures
public boolean supportsStoredProcedures()- Specified by:
supportsStoredProceduresin interfaceDatabaseMetaData
-
supportsSubqueriesInComparisons
public boolean supportsSubqueriesInComparisons()- Specified by:
supportsSubqueriesInComparisonsin interfaceDatabaseMetaData
-
supportsSubqueriesInExists
public boolean supportsSubqueriesInExists()- Specified by:
supportsSubqueriesInExistsin interfaceDatabaseMetaData
-
supportsSubqueriesInIns
public boolean supportsSubqueriesInIns()- Specified by:
supportsSubqueriesInInsin interfaceDatabaseMetaData
-
supportsSubqueriesInQuantifieds
public boolean supportsSubqueriesInQuantifieds()- Specified by:
supportsSubqueriesInQuantifiedsin interfaceDatabaseMetaData
-
supportsUnion
public boolean supportsUnion()- Specified by:
supportsUnionin interfaceDatabaseMetaData
-
supportsUnionAll
public boolean supportsUnionAll()- Specified by:
supportsUnionAllin interfaceDatabaseMetaData
-
supportsOpenCursorsAcrossCommit
public boolean supportsOpenCursorsAcrossCommit()- Specified by:
supportsOpenCursorsAcrossCommitin interfaceDatabaseMetaData
-
supportsOpenCursorsAcrossRollback
public boolean supportsOpenCursorsAcrossRollback()- Specified by:
supportsOpenCursorsAcrossRollbackin interfaceDatabaseMetaData
-
supportsOpenStatementsAcrossCommit
public boolean supportsOpenStatementsAcrossCommit()- Specified by:
supportsOpenStatementsAcrossCommitin interfaceDatabaseMetaData
-
supportsOpenStatementsAcrossRollback
public boolean supportsOpenStatementsAcrossRollback()- Specified by:
supportsOpenStatementsAcrossRollbackin interfaceDatabaseMetaData
-
getMaxBinaryLiteralLength
public int getMaxBinaryLiteralLength()- Specified by:
getMaxBinaryLiteralLengthin interfaceDatabaseMetaData
-
getMaxCharLiteralLength
public int getMaxCharLiteralLength()- Specified by:
getMaxCharLiteralLengthin interfaceDatabaseMetaData
-
getMaxColumnNameLength
public int getMaxColumnNameLength()- Specified by:
getMaxColumnNameLengthin interfaceDatabaseMetaData
-
getMaxColumnsInGroupBy
public int getMaxColumnsInGroupBy()- Specified by:
getMaxColumnsInGroupByin interfaceDatabaseMetaData
-
getMaxColumnsInIndex
public int getMaxColumnsInIndex()- Specified by:
getMaxColumnsInIndexin interfaceDatabaseMetaData
-
getMaxColumnsInOrderBy
public int getMaxColumnsInOrderBy()- Specified by:
getMaxColumnsInOrderByin interfaceDatabaseMetaData
-
getMaxColumnsInSelect
public int getMaxColumnsInSelect()- Specified by:
getMaxColumnsInSelectin interfaceDatabaseMetaData
-
getMaxColumnsInTable
public int getMaxColumnsInTable()- Specified by:
getMaxColumnsInTablein interfaceDatabaseMetaData
-
getMaxConnections
public int getMaxConnections()- Specified by:
getMaxConnectionsin interfaceDatabaseMetaData
-
getMaxCursorNameLength
public int getMaxCursorNameLength()- Specified by:
getMaxCursorNameLengthin interfaceDatabaseMetaData
-
getMaxIndexLength
public int getMaxIndexLength()- Specified by:
getMaxIndexLengthin interfaceDatabaseMetaData
-
getMaxSchemaNameLength
public int getMaxSchemaNameLength()- Specified by:
getMaxSchemaNameLengthin interfaceDatabaseMetaData
-
getMaxProcedureNameLength
public int getMaxProcedureNameLength()- Specified by:
getMaxProcedureNameLengthin interfaceDatabaseMetaData
-
getMaxCatalogNameLength
public int getMaxCatalogNameLength()- Specified by:
getMaxCatalogNameLengthin interfaceDatabaseMetaData
-
getMaxRowSize
public int getMaxRowSize()- Specified by:
getMaxRowSizein interfaceDatabaseMetaData
-
doesMaxRowSizeIncludeBlobs
public boolean doesMaxRowSizeIncludeBlobs()- Specified by:
doesMaxRowSizeIncludeBlobsin interfaceDatabaseMetaData
-
getMaxStatementLength
public int getMaxStatementLength()- Specified by:
getMaxStatementLengthin interfaceDatabaseMetaData
-
getMaxStatements
public int getMaxStatements()- Specified by:
getMaxStatementsin interfaceDatabaseMetaData
-
getMaxTableNameLength
public int getMaxTableNameLength()- Specified by:
getMaxTableNameLengthin interfaceDatabaseMetaData
-
getMaxTablesInSelect
public int getMaxTablesInSelect()- Specified by:
getMaxTablesInSelectin interfaceDatabaseMetaData
-
getMaxUserNameLength
public int getMaxUserNameLength()- Specified by:
getMaxUserNameLengthin interfaceDatabaseMetaData
-
getDefaultTransactionIsolation
public int getDefaultTransactionIsolation()- Specified by:
getDefaultTransactionIsolationin interfaceDatabaseMetaData
-
supportsTransactions
public boolean supportsTransactions()Retrieves whether this database supports transactions. If not, invoking the methodcommitis a noop, and the isolation level isTRANSACTION_NONE.- Specified by:
supportsTransactionsin interfaceDatabaseMetaData- Returns:
trueif transactions are supported;falseotherwise
-
supportsTransactionIsolationLevel
public boolean supportsTransactionIsolationLevel(int level) Retrieves whether this database supports the given transaction isolation level.- Specified by:
supportsTransactionIsolationLevelin interfaceDatabaseMetaData- Parameters:
level- one of the transaction isolation levels defined injava.sql.Connection- Returns:
trueif so;falseotherwise- See Also:
-
supportsDataDefinitionAndDataManipulationTransactions
public boolean supportsDataDefinitionAndDataManipulationTransactions()- Specified by:
supportsDataDefinitionAndDataManipulationTransactionsin interfaceDatabaseMetaData
-
supportsDataManipulationTransactionsOnly
public boolean supportsDataManipulationTransactionsOnly()- Specified by:
supportsDataManipulationTransactionsOnlyin interfaceDatabaseMetaData
-
dataDefinitionCausesTransactionCommit
public boolean dataDefinitionCausesTransactionCommit()- Specified by:
dataDefinitionCausesTransactionCommitin interfaceDatabaseMetaData
-
dataDefinitionIgnoredInTransactions
public boolean dataDefinitionIgnoredInTransactions()- Specified by:
dataDefinitionIgnoredInTransactionsin interfaceDatabaseMetaData
-
getProcedures
public ResultSet getProcedures(String catalog, String schemaPattern, String procedureNamePattern) throws SQLException Retrieves a description of the stored procedures available in the given catalog. Only procedure descriptions matching the schema and procedure name criteria are returned. They are ordered byPROCEDURE_CAT,PROCEDURE_SCHEM,PROCEDURE_NAMEandSPECIFIC_ NAME.Each procedure description has the following columns:
- PROCEDURE_CAT String
=>procedure catalog (may benull) - PROCEDURE_SCHEM String
=>procedure schema (may benull) - PROCEDURE_NAME String
=>procedure name - reserved for future use
- reserved for future use
- reserved for future use
- REMARKS String
=>explanatory comment on the procedure - PROCEDURE_TYPE short
=>kind of procedure:- procedureResultUnknown - Cannot determine if a return value will be returned
- procedureNoResult - Does not return a return value
- procedureReturnsResult - Returns a return value
- SPECIFIC_NAME String
=>The name which uniquely identifies this procedure within its schema.
A user may not have permissions to execute any of the procedures that are returned by
getProcedures- Specified by:
getProceduresin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschemaPattern- a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchprocedureNamePattern- a procedure name pattern; must match the procedure name as it is stored in the database- Returns:
ResultSet- each row is a procedure description- Throws:
SQLException- if a database access error occurs- See Also:
- PROCEDURE_CAT String
-
getProcedureColumns
public ResultSet getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern) throws SQLException Retrieves a description of the given catalog's stored procedure parameter and result columns.Only descriptions matching the schema, procedure and parameter name criteria are returned. They are ordered by PROCEDURE_CAT, PROCEDURE_SCHEM, PROCEDURE_NAME and SPECIFIC_NAME. Within this, the return value, if any, is first. Next are the parameter descriptions in call order. The column descriptions follow in column number order.
Each row in the
ResultSetis a parameter description or column description with the following fields:- PROCEDURE_CAT String
=>procedure catalog (may benull) - PROCEDURE_SCHEM String
=>procedure schema (may benull) - PROCEDURE_NAME String
=>procedure name - COLUMN_NAME String
=>column/parameter name - COLUMN_TYPE Short
=>kind of column/parameter:- procedureColumnUnknown - nobody knows
- procedureColumnIn - IN parameter
- procedureColumnInOut - INOUT parameter
- procedureColumnOut - OUT parameter
- procedureColumnReturn - procedure return value
- procedureColumnResult - result column in
ResultSet
- DATA_TYPE int
=>SQL type from java.sql.Types - TYPE_NAME String
=>SQL type name, for a UDT type the type name is fully qualified - PRECISION int
=>precision - LENGTH int
=>length in bytes of data - SCALE short
=>scale - null is returned for data types where SCALE is not applicable. - RADIX short
=>radix - NULLABLE short
=>can it contain NULL.- procedureNoNulls - does not allow NULL values
- procedureNullable - allows NULL values
- procedureNullableUnknown - nullability unknown
- REMARKS String
=>comment describing parameter/column - COLUMN_DEF String
=>default value for the column, which should be interpreted as a string when the value is enclosed in single quotes (may benull)- The string NULL (not enclosed in quotes) - if NULL was specified as the default value
- TRUNCATE (not enclosed in quotes) - if the specified default value cannot be represented without truncation
- NULL - if a default value was not specified
- SQL_DATA_TYPE int
=>reserved for future use - SQL_DATETIME_SUB int
=>reserved for future use - CHAR_OCTET_LENGTH int
=>the maximum length of binary and character based columns. For any other datatype the returned value is a NULL - ORDINAL_POSITION int
=>the ordinal position, starting from 1, for the input and output parameters for a procedure. A value of 0 is returned if this row describes the procedure's return value. For result set columns, it is the ordinal position of the column in the result set starting from 1. If there are multiple result sets, the column ordinal positions are implementation defined. - IS_NULLABLE String
=>ISO rules are used to determine the nullability for a column.- YES --- if the column can include NULLs
- NO --- if the column cannot include NULLs
- empty string --- if the nullability for the column is unknown
- SPECIFIC_NAME String
=>the name which uniquely identifies this procedure within its schema.
Note: Some databases may not return the column descriptions for a procedure.
The PRECISION column represents the specified column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
- Specified by:
getProcedureColumnsin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschemaPattern- a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchprocedureNamePattern- a procedure name pattern; must match the procedure name as it is stored in the databasecolumnNamePattern- a column name pattern; must match the column name as it is stored in the database- Returns:
ResultSet- each row describes a stored procedure parameter or column- Throws:
SQLException- if a database access error occurs- See Also:
- PROCEDURE_CAT String
-
getFunctionColumns
public ResultSet getFunctionColumns(String catalog, String schemaPattern, String functionNamePattern, String columnNamePattern) throws SQLException Retrieves a description of the given catalog's system or user function parameters and return type.Only descriptions matching the schema, function and parameter name criteria are returned. They are ordered by
FUNCTION_CAT,FUNCTION_SCHEM,FUNCTION_NAMEandSPECIFIC_ NAME. Within this, the return value, if any, is first. Next are the parameter descriptions in call order. The column descriptions follow in column number order.Each row in the
ResultSetis a parameter description, column description or return type description with the following fields:- FUNCTION_CAT String
=>function catalog (may benull) - FUNCTION_SCHEM String
=>function schema (may benull) - FUNCTION_NAME String
=>function name. This is the name used to invoke the function - COLUMN_NAME String
=>column/parameter name - COLUMN_TYPE Short
=>kind of column/parameter:- functionColumnUnknown - nobody knows
- functionColumnIn - IN parameter
- functionColumnInOut - INOUT parameter
- functionColumnOut - OUT parameter
- functionColumnReturn - function return value
- functionColumnResult - Indicates that the parameter or column is a column in the
ResultSet
- DATA_TYPE int
=>SQL type from java.sql.Types - TYPE_NAME String
=>SQL type name, for a UDT type the type name is fully qualified - PRECISION int
=>precision - LENGTH int
=>length in bytes of data - SCALE short
=>scale - null is returned for data types where SCALE is not applicable. - RADIX short
=>radix - NULLABLE short
=>can it contain NULL.- functionNoNulls - does not allow NULL values
- functionNullable - allows NULL values
- functionNullableUnknown - nullability unknown
- REMARKS String
=>comment describing column/parameter - CHAR_OCTET_LENGTH int
=>the maximum length of binary and character based parameters or columns. For any other datatype the returned value is a NULL - ORDINAL_POSITION int
=>the ordinal position, starting from 1, for the input and output parameters. A value of 0 is returned if this row describes the function's return value. For result set columns, it is the ordinal position of the column in the result set starting from 1. - IS_NULLABLE String
=>ISO rules are used to determine the nullability for a parameter or column.- YES --- if the parameter or column can include NULLs
- NO --- if the parameter or column cannot include NULLs
- empty string --- if the nullability for the parameter or column is unknown
- SPECIFIC_NAME String
=>the name which uniquely identifies this function within its schema. This is a user specified, or DBMS generated, name that may be different then theFUNCTION_NAMEfor example with overload functions
The PRECISION column represents the specified column size for the given parameter or column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
- Specified by:
getFunctionColumnsin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschemaPattern- a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchfunctionNamePattern- a procedure name pattern; must match the function name as it is stored in the databasecolumnNamePattern- a parameter name pattern; must match the parameter or column name as it is stored in the database- Returns:
ResultSet- each row describes a user function parameter, column or return type- Throws:
SQLException- if a database access error occurs- Since:
- 1.6
- See Also:
- FUNCTION_CAT String
-
getSchemas
- Specified by:
getSchemasin interfaceDatabaseMetaData- Throws:
SQLException
-
getSchemas
- Specified by:
getSchemasin interfaceDatabaseMetaData- Throws:
SQLException
-
getCatalogs
- Specified by:
getCatalogsin interfaceDatabaseMetaData- Throws:
SQLException
-
getTableTypes
- Specified by:
getTableTypesin interfaceDatabaseMetaData- Throws:
SQLException
-
getColumnPrivileges
public ResultSet getColumnPrivileges(String catalog, String schema, String table, String columnNamePattern) throws SQLException Retrieves a description of the access rights for a table's columns.Only privileges matching the column name criteria are returned. They are ordered by COLUMN_NAME and PRIVILEGE.
Each privilege description has the following columns:
- TABLE_CAT String
=>table catalog (may benull) - TABLE_SCHEM String
=>table schema (may benull) - TABLE_NAME String
=>table name - COLUMN_NAME String
=>column name - GRANTOR String
=>grantor of access (may benull) - GRANTEE String
=>grantee of access - PRIVILEGE String
=>name of access (SELECT, INSERT, UPDATE, REFRENCES, ...) - IS_GRANTABLE String
=>"YES" if grantee is permitted to grant to others; "NO" if not;nullif unknown
- Specified by:
getColumnPrivilegesin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschema- a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtable- a table name; must match the table name as it is stored in the databasecolumnNamePattern- a column name pattern; must match the column name as it is stored in the database- Returns:
ResultSet- each row is a column privilege description- Throws:
SQLException- if a database access error occurs- See Also:
- TABLE_CAT String
-
getTablePrivileges
public ResultSet getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern) throws SQLException Retrieves a description of the access rights for each table available in a catalog. Note that a table privilege applies to one or more columns in the table. It would be wrong to assume that this privilege applies to all columns (this may be true for some systems but is not true for all.)Only privileges matching the schema and table name criteria are returned. They are ordered by
TABLE_CAT,TABLE_SCHEM,TABLE_NAME, andPRIVILEGE.Each privilege description has the following columns:
- TABLE_CAT String
=>table catalog (may benull) - TABLE_SCHEM String
=>table schema (may benull) - TABLE_NAME String
=>table name - GRANTOR String
=>grantor of access (may benull) - GRANTEE String
=>grantee of access - PRIVILEGE String
=>name of access (SELECT, INSERT, UPDATE, REFRENCES, ...) - IS_GRANTABLE String
=>"YES" if grantee is permitted to grant to others; "NO" if not;nullif unknown
- Specified by:
getTablePrivilegesin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschemaPattern- a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtableNamePattern- a table name pattern; must match the table name as it is stored in the database- Returns:
ResultSet- each row is a table privilege description- Throws:
SQLException- if a database access error occurs- See Also:
- TABLE_CAT String
-
getVersionColumns
Retrieves a description of a table's columns that are automatically updated when any value in a row is updated. They are unordered.Each column description has the following columns:
- SCOPE short
=>is not used - COLUMN_NAME String
=>column name - DATA_TYPE int
=>SQL data type fromjava.sql.Types - TYPE_NAME String
=>Data source-dependent type name - COLUMN_SIZE int
=>precision - BUFFER_LENGTH int
=>length of column value in bytes - DECIMAL_DIGITS short
=>scale - Null is returned for data types where DECIMAL_DIGITS is not applicable. - PSEUDO_COLUMN short
=>whether this is pseudo column like an Oracle ROWID- versionColumnUnknown - may or may not be pseudo column
- versionColumnNotPseudo - is NOT a pseudo column
- versionColumnPseudo - is a pseudo column
The COLUMN_SIZE column represents the specified column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
- Specified by:
getVersionColumnsin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschema- a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtable- a table name; must match the table name as it is stored in the database- Returns:
- a
ResultSetobject in which each row is a column description - Throws:
SQLException- if a database access error occurs
- SCOPE short
-
getCrossReference
public ResultSet getCrossReference(String parentCatalog, String parentSchema, String parentTable, String foreignCatalog, String foreignSchema, String foreignTable) throws SQLException Retrieves a description of the foreign key columns in the given foreign key table that reference the primary key or the columns representing a unique constraint of the parent table (could be the same or a different table). The number of columns returned from the parent table must match the number of columns that make up the foreign key. They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.Each foreign key column description has the following columns:
- PKTABLE_CAT String
=>parent key table catalog (may benull) - PKTABLE_SCHEM String
=>parent key table schema (may benull) - PKTABLE_NAME String
=>parent key table name - PKCOLUMN_NAME String
=>parent key column name - FKTABLE_CAT String
=>foreign key table catalog (may benull) being exported (may benull) - FKTABLE_SCHEM String
=>foreign key table schema (may benull) being exported (may benull) - FKTABLE_NAME String
=>foreign key table name being exported - FKCOLUMN_NAME String
=>foreign key column name being exported - KEY_SEQ short
=>sequence number within foreign key( a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key). - UPDATE_RULE short
=>What happens to foreign key when parent key is updated:- importedNoAction - do not allow update of parent key if it has been imported
- importedKeyCascade - change imported key to agree with parent key update
- importedKeySetNull - change imported key to
NULLif its parent key has been updated - importedKeySetDefault - change imported key to default values if its parent key has been updated
- importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
- DELETE_RULE short
=>What happens to the foreign key when parent key is deleted.- importedKeyNoAction - do not allow delete of parent key if it has been imported
- importedKeyCascade - delete rows that import a deleted key
- importedKeySetNull - change imported key to
NULLif its primary key has been deleted - importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
- importedKeySetDefault - change imported key to default if its parent key has been deleted
- FK_NAME String
=>foreign key name (may benull) - PK_NAME String
=>parent key name (may benull) - DEFERRABILITY short
=>can the evaluation of foreign key constraints be deferred until commit- importedKeyInitiallyDeferred - see SQL92 for definition
- importedKeyInitiallyImmediate - see SQL92 for definition
- importedKeyNotDeferrable - see SQL92 for definition
- Specified by:
getCrossReferencein interfaceDatabaseMetaData- Parameters:
parentCatalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans drop catalog name from the selection criteriaparentSchema- a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans drop schema name from the selection criteriaparentTable- the name of the table that exports the key; pattern, or null (means any table) valueforeignCatalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans drop catalog name from the selection criteriaforeignSchema- a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans drop schema name from the selection criteriaforeignTable- the name of the table that imports the key; pattern, or null (means any table) value is stored in the database- Returns:
ResultSet- each row is a foreign key column description- Throws:
SQLException- if a database access error occurs- See Also:
- PKTABLE_CAT String
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getTypeInfo
Retrieves a description of all the data types supported by this database. They are ordered by DATA_TYPE and then by how closely the data type maps to the corresponding JDBC SQL type.If the database supports SQL distinct types, then getTypeInfo() will return a single row with a TYPE_NAME of DISTINCT and a DATA_TYPE of Types.DISTINCT. If the database supports SQL structured types, then getTypeInfo() will return a single row with a TYPE_NAME of STRUCT and a DATA_TYPE of Types.STRUCT.
If SQL distinct or structured types are supported, then information on the individual types may be obtained from the getUDTs() method.
Each type description has the following columns:
- TYPE_NAME String
=>Type name - DATA_TYPE int
=>SQL data type from java.sql.Types - PRECISION int
=>maximum precision - LITERAL_PREFIX String
=>prefix used to quote a literal (may benull) - LITERAL_SUFFIX String
=>suffix used to quote a literal (may benull) - CREATE_PARAMS String
=>parameters used in creating the type (may benull) - NULLABLE short
=>can you use NULL for this type.- typeNoNulls - does not allow NULL values
- typeNullable - allows NULL values
- typeNullableUnknown - nullability unknown
- CASE_SENSITIVE boolean
=>is it case sensitive. - SEARCHABLE short
=>can you use "WHERE" based on this type:- typePredNone - No support
- typePredChar - Only supported with WHERE .. LIKE
- typePredBasic - Supported except for WHERE .. LIKE
- typeSearchable - Supported for all WHERE ..
- UNSIGNED_ATTRIBUTE boolean
=>is it unsigned. - FIXED_PREC_SCALE boolean
=>can it be a money value. - AUTO_INCREMENT boolean
=>can it be used for an auto-increment value. - LOCAL_TYPE_NAME String
=>localized version of type name (may benull) - MINIMUM_SCALE short
=>minimum scale supported - MAXIMUM_SCALE short
=>maximum scale supported - SQL_DATA_TYPE int
=>unused - SQL_DATETIME_SUB int
=>unused - NUM_PREC_RADIX int
=>usually 2 or 10
The PRECISION column represents the maximum column size that the server supports for the given datatype. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
- Specified by:
getTypeInfoin interfaceDatabaseMetaData- Returns:
- a
ResultSetobject in which each row is an SQL type description
- TYPE_NAME String
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getIndexInfo
public ResultSet getIndexInfo(String catalog, String schema, String table, boolean unique, boolean approximate) throws SQLException Retrieves a description of the given table's indices and statistics. They are ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION.Each index column description has the following columns:
- TABLE_CAT String
=>table catalog (may benull) - TABLE_SCHEM String
=>table schema (may benull) - TABLE_NAME String
=>table name - NON_UNIQUE boolean
=>Can index values be non-unique. false when TYPE is tableIndexStatistic - INDEX_QUALIFIER String
=>index catalog (may benull);nullwhen TYPE is tableIndexStatistic - INDEX_NAME String
=>index name;nullwhen TYPE is tableIndexStatistic - TYPE short
=>index type:- tableIndexStatistic - this identifies table statistics that are returned in conjuction with a table's index descriptions
- tableIndexClustered - this is a clustered index
- tableIndexHashed - this is a hashed index
- tableIndexOther - this is some other style of index
- ORDINAL_POSITION short
=>column sequence number within index; zero when TYPE is tableIndexStatistic - COLUMN_NAME String
=>column name;nullwhen TYPE is tableIndexStatistic - ASC_OR_DESC String
=>column sort sequence, "A"=>ascending, "D"=>descending, may benullif sort sequence is not supported;nullwhen TYPE is tableIndexStatistic - CARDINALITY long
=>When TYPE is tableIndexStatistic, then this is the number of rows in the table; otherwise, it is the number of unique values in the index. - PAGES long
=>When TYPE is tableIndexStatisic then this is the number of pages used for the table, otherwise it is the number of pages used for the current index. - FILTER_CONDITION String
=>Filter condition, if any. (may benull)
- Specified by:
getIndexInfoin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in this database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschema- a schema name; must match the schema name as it is stored in this database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtable- a table name; must match the table name as it is stored in this databaseunique- when true, return only indices for unique values; when false, return indices regardless of whether unique or notapproximate- when true, result is allowed to reflect approximate or out of data values; when false, results are requested to be accurate- Returns:
ResultSet- each row is an index column description- Throws:
SQLException- if a database access error occurs
- TABLE_CAT String
-
supportsResultSetType
public boolean supportsResultSetType(int type) Retrieves whether this database supports the given result set type. ResultSet.TYPE_FORWARD_ONLY and ResultSet.TYPE_SCROLL_INSENSITIVE are supported.- Specified by:
supportsResultSetTypein interfaceDatabaseMetaData- Parameters:
type- one of the followingResultSetconstants:ResultSet.TYPE_FORWARD_ONLYResultSet.TYPE_SCROLL_INSENSITIVEResultSet.TYPE_SCROLL_SENSITIVE
- Returns:
- true if supported
-
supportsResultSetConcurrency
public boolean supportsResultSetConcurrency(int type, int concurrency) Retrieves whether this database supports the given concurrency type in combination with the given result set type. All are supported, but combination that use ResultSet.TYPE_SCROLL_INSENSITIVE.- Specified by:
supportsResultSetConcurrencyin interfaceDatabaseMetaData- Parameters:
type- one of the followingResultSetconstants:ResultSet.TYPE_FORWARD_ONLYResultSet.TYPE_SCROLL_INSENSITIVEResultSet.TYPE_SCROLL_SENSITIVE
concurrency- one of the followingResultSetconstants:ResultSet.CONCUR_READ_ONLYResultSet.CONCUR_UPDATABLE
- Returns:
- true if supported
-
ownUpdatesAreVisible
public boolean ownUpdatesAreVisible(int type) - Specified by:
ownUpdatesAreVisiblein interfaceDatabaseMetaData
-
ownDeletesAreVisible
public boolean ownDeletesAreVisible(int type) - Specified by:
ownDeletesAreVisiblein interfaceDatabaseMetaData
-
ownInsertsAreVisible
public boolean ownInsertsAreVisible(int type) - Specified by:
ownInsertsAreVisiblein interfaceDatabaseMetaData
-
othersUpdatesAreVisible
public boolean othersUpdatesAreVisible(int type) - Specified by:
othersUpdatesAreVisiblein interfaceDatabaseMetaData
-
othersDeletesAreVisible
public boolean othersDeletesAreVisible(int type) - Specified by:
othersDeletesAreVisiblein interfaceDatabaseMetaData
-
othersInsertsAreVisible
public boolean othersInsertsAreVisible(int type) - Specified by:
othersInsertsAreVisiblein interfaceDatabaseMetaData
-
updatesAreDetected
public boolean updatesAreDetected(int type) - Specified by:
updatesAreDetectedin interfaceDatabaseMetaData
-
deletesAreDetected
public boolean deletesAreDetected(int type) - Specified by:
deletesAreDetectedin interfaceDatabaseMetaData
-
insertsAreDetected
public boolean insertsAreDetected(int type) - Specified by:
insertsAreDetectedin interfaceDatabaseMetaData
-
supportsBatchUpdates
public boolean supportsBatchUpdates()- Specified by:
supportsBatchUpdatesin interfaceDatabaseMetaData
-
getUDTs
public ResultSet getUDTs(String catalog, String schemaPattern, String typeNamePattern, int[] types) throws SQLException Retrieves a description of the user-defined types (UDTs) defined in a particular schema. Schema-specific UDTs may have typeJAVA_OBJECT,STRUCT, orDISTINCT.Only types matching the catalog, schema, type name and type criteria are returned. They are ordered by
DATA_TYPE,TYPE_CAT,TYPE_SCHEMandTYPE_NAME. The type name parameter may be a fully-qualified name. In this case, the catalog and schemaPattern parameters are ignored.Each type description has the following columns:
- TYPE_CAT String
=>the type's catalog (may benull) - TYPE_SCHEM String
=>type's schema (may benull) - TYPE_NAME String
=>type name - CLASS_NAME String
=>Java class name - DATA_TYPE int
=>type value defined in java.sql.Types. One of JAVA_OBJECT, STRUCT, or DISTINCT - REMARKS String
=>explanatory comment on the type - BASE_TYPE short
=>type code of the source type of a DISTINCT type or the type that implements the user-generated reference type of the SELF_REFERENCING_COLUMN of a structured type as defined in java.sql.Types (nullif DATA_TYPE is not DISTINCT or not STRUCT with REFERENCE_GENERATION = USER_DEFINED)
Note: If the driver does not support UDTs, an empty result set is returned.
- Specified by:
getUDTsin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschemaPattern- a schema pattern name; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtypeNamePattern- a type name pattern; must match the type name as it is stored in the database; may be a fully qualified nametypes- a list of user-defined types (JAVA_OBJECT, STRUCT, or DISTINCT) to include;nullreturns all types- Returns:
ResultSetobject in which each row describes a UDT- Throws:
SQLException- if a database access error occurs- Since:
- 1.2
- See Also:
- TYPE_CAT String
-
getConnection
- Specified by:
getConnectionin interfaceDatabaseMetaData
-
supportsSavepoints
public boolean supportsSavepoints()- Specified by:
supportsSavepointsin interfaceDatabaseMetaData
-
supportsNamedParameters
public boolean supportsNamedParameters()- Specified by:
supportsNamedParametersin interfaceDatabaseMetaData
-
supportsMultipleOpenResults
public boolean supportsMultipleOpenResults()- Specified by:
supportsMultipleOpenResultsin interfaceDatabaseMetaData
-
supportsGetGeneratedKeys
public boolean supportsGetGeneratedKeys()- Specified by:
supportsGetGeneratedKeysin interfaceDatabaseMetaData
-
getSuperTypes
public ResultSet getSuperTypes(String catalog, String schemaPattern, String typeNamePattern) throws SQLException Retrieves a description of the user-defined type (UDT) hierarchies defined in a particular schema in this database. Only the immediate super type/ subtype relationship is modeled. Only supertype information for UDTs matching the catalog, schema, and type name is returned. The type name parameter may be a fully-qualified name. When the UDT name supplied is a fully-qualified name, the catalog and schemaPattern parameters are ignored. If a UDT does not have a direct super type, it is not listed here. A row of theResultSetobject returned by this method describes the designated UDT and a direct supertype. A row has the following columns:- TYPE_CAT String
=>the UDT's catalog (may benull) - TYPE_SCHEM String
=>UDT's schema (may benull) - TYPE_NAME String
=>type name of the UDT - SUPERTYPE_CAT String
=>the direct super type's catalog (may benull) - SUPERTYPE_SCHEM String
=>the direct super type's schema (may benull) - SUPERTYPE_NAME String
=>the direct super type's name
Note: If the driver does not support type hierarchies, an empty result set is returned.
- Specified by:
getSuperTypesin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; "" retrieves those without a catalog;nullmeans drop catalog name from the selection criteriaschemaPattern- a schema name pattern; "" retrieves those without a schematypeNamePattern- a UDT name pattern; may be a fully-qualified name- Returns:
- a
ResultSetobject in which a row gives information about the designated UDT - Throws:
SQLException- if a database access error occurs- Since:
- 1.4
- See Also:
- TYPE_CAT String
-
getSuperTables
public ResultSet getSuperTables(String catalog, String schemaPattern, String tableNamePattern) throws SQLException Retrieves a description of the table hierarchies defined in a particular schema in this database.Only supertable information for tables matching the catalog, schema and table name are returned. The table name parameter may be a fully-qualified name, in which case, the catalog and schemaPattern parameters are ignored. If a table does not have a super table, it is not listed here. Supertables have to be defined in the same catalog and schema as the sub tables. Therefore, the type description does not need to include this information for the supertable.
Each type description has the following columns:
- TABLE_CAT String
=>the type's catalog (may benull) - TABLE_SCHEM String
=>type's schema (may benull) - TABLE_NAME String
=>type name - SUPERTABLE_NAME String
=>the direct super type's name
Note: If the driver does not support type hierarchies, an empty result set is returned.
- Specified by:
getSuperTablesin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; "" retrieves those without a catalog;nullmeans drop catalog name from the selection criteriaschemaPattern- a schema name pattern; "" retrieves those without a schematableNamePattern- a table name pattern; may be a fully-qualified name- Returns:
- a
ResultSetobject in which each row is a type description - Throws:
SQLException- if a database access error occurs- Since:
- 1.4
- See Also:
- TABLE_CAT String
-
getAttributes
public ResultSet getAttributes(String catalog, String schemaPattern, String typeNamePattern, String attributeNamePattern) throws SQLException Retrieves a description of the given attribute of the given type for a user-defined type (UDT) that is available in the given schema and catalog. Descriptions are returned only for attributes of UDTs matching the catalog, schema, type, and attribute name criteria. They are ordered byTYPE_CAT,TYPE_SCHEM,TYPE_NAMEandORDINAL_POSITION. This description does not contain inherited attributes. TheResultSetobject that is returned has the following columns:- TYPE_CAT String
=>type catalog (may benull) - TYPE_SCHEM String
=>type schema (may benull) - TYPE_NAME String
=>type name - ATTR_NAME String
=>attribute name - DATA_TYPE int
=>attribute type SQL type from java.sql.Types - ATTR_TYPE_NAME String
=>Data source dependent type name. For a UDT, the type name is fully qualified. For a REF, the type name is fully qualified and represents the target type of the reference type. - ATTR_SIZE int
=>column size. For char or date types this is the maximum number of characters; for numeric or decimal types this is precision. - DECIMAL_DIGITS int
=>the number of fractional digits. Null is returned for data types where DECIMAL_DIGITS is not applicable. - NUM_PREC_RADIX int
=>Radix (typically either 10 or 2) - NULLABLE int
=>whether NULL is allowed- attributeNoNulls - might not allow NULL values
- attributeNullable - definitely allows NULL values
- attributeNullableUnknown - nullability unknown
- REMARKS String
=>comment describing column (may benull) - ATTR_DEF String
=>default value (may benull) - SQL_DATA_TYPE int
=>unused - SQL_DATETIME_SUB int
=>unused - CHAR_OCTET_LENGTH int
=>for char types the maximum number of bytes in the column - ORDINAL_POSITION int
=>index of the attribute in the UDT (starting at 1) - IS_NULLABLE String
=>ISO rules are used to determine the nullability for a attribute.- YES --- if the attribute can include NULLs
- NO --- if the attribute cannot include NULLs
- empty string --- if the nullability for the attribute is unknown
- SCOPE_CATALOG String
=>catalog of table that is the scope of a reference attribute (nullif DATA_TYPE isn't REF) - SCOPE_SCHEMA String
=>schema of table that is the scope of a reference attribute (nullif DATA_TYPE isn't REF) - SCOPE_TABLE String
=>table name that is the scope of a reference attribute (nullif the DATA_TYPE isn't REF) - SOURCE_DATA_TYPE short
=>source type of a distinct type or user-generated Ref type,SQL type from java.sql.Types (nullif DATA_TYPE isn't DISTINCT or user-generated REF)
- Specified by:
getAttributesin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschemaPattern- a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchtypeNamePattern- a type name pattern; must match the type name as it is stored in the databaseattributeNamePattern- an attribute name pattern; must match the attribute name as it is declared in the database- Returns:
- a
ResultSetobject in which each row is an attribute description - Throws:
SQLException- if a database access error occurs- Since:
- 1.4
- See Also:
- TYPE_CAT String
-
supportsResultSetHoldability
public boolean supportsResultSetHoldability(int holdability) - Specified by:
supportsResultSetHoldabilityin interfaceDatabaseMetaData
-
getResultSetHoldability
public int getResultSetHoldability()- Specified by:
getResultSetHoldabilityin interfaceDatabaseMetaData
-
getDatabaseMajorVersion
public int getDatabaseMajorVersion()- Specified by:
getDatabaseMajorVersionin interfaceDatabaseMetaData
-
getDatabaseMinorVersion
public int getDatabaseMinorVersion()- Specified by:
getDatabaseMinorVersionin interfaceDatabaseMetaData
-
getJDBCMajorVersion
public int getJDBCMajorVersion()- Specified by:
getJDBCMajorVersionin interfaceDatabaseMetaData
-
getJDBCMinorVersion
public int getJDBCMinorVersion()- Specified by:
getJDBCMinorVersionin interfaceDatabaseMetaData
-
getSQLStateType
public int getSQLStateType()- Specified by:
getSQLStateTypein interfaceDatabaseMetaData
-
locatorsUpdateCopy
public boolean locatorsUpdateCopy()- Specified by:
locatorsUpdateCopyin interfaceDatabaseMetaData
-
supportsStatementPooling
public boolean supportsStatementPooling()- Specified by:
supportsStatementPoolingin interfaceDatabaseMetaData
-
getRowIdLifetime
- Specified by:
getRowIdLifetimein interfaceDatabaseMetaData
-
supportsStoredFunctionsUsingCallSyntax
public boolean supportsStoredFunctionsUsingCallSyntax()- Specified by:
supportsStoredFunctionsUsingCallSyntaxin interfaceDatabaseMetaData
-
autoCommitFailureClosesAllResultSets
public boolean autoCommitFailureClosesAllResultSets()- Specified by:
autoCommitFailureClosesAllResultSetsin interfaceDatabaseMetaData
-
getClientInfoProperties
Retrieves a list of the client info properties that the driver supports. The result set contains the following columns- NAME String : The name of the client info property
- MAX_LEN int : The maximum length of the value for the property
- DEFAULT_VALUE String : The default value of the property
- DESCRIPTION String : A description of the property. This will typically contain information as to where this property is stored in the database.
The ResultSet is sorted by the NAME column
- Specified by:
getClientInfoPropertiesin interfaceDatabaseMetaData- Returns:
- A ResultSet object; each row is a supported client info property
-
getFunctions
public ResultSet getFunctions(String catalog, String schemaPattern, String functionNamePattern) throws SQLException Retrieves a description of the system and user functions available in the given catalog. Only system and user function descriptions matching the schema and function name criteria are returned. They are ordered byFUNCTION_CAT,FUNCTION_SCHEM,FUNCTION_NAMEandSPECIFIC_ NAME.Each function description has the following columns:
- FUNCTION_CAT String
=>function catalog (may benull) - FUNCTION_SCHEM String
=>function schema (may benull) - FUNCTION_NAME String
=>function name. This is the name used to invoke the function - REMARKS String
=>explanatory comment on the function - FUNCTION_TYPE short
=>kind of function:- functionResultUnknown - Cannot determine if a return value or table will be returned
- functionNoTable- Does not return a table
- functionReturnsTable - Returns a table
- SPECIFIC_NAME String
=>the name which uniquely identifies this function within its schema. This is a user specified, or DBMS generated, name that may be different then theFUNCTION_NAMEfor example with overload functions
A user may not have permission to execute any of the functions that are returned by
getFunctions- Specified by:
getFunctionsin interfaceDatabaseMetaData- Parameters:
catalog- a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog;nullmeans that the catalog name should not be used to narrow the searchschemaPattern- a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema;nullmeans that the schema name should not be used to narrow the searchfunctionNamePattern- a function name pattern; must match the function name as it is stored in the database- Returns:
ResultSet- each row is a function description- Throws:
SQLException- if a database access error occurs- Since:
- 1.6
- See Also:
- FUNCTION_CAT String
-
unwrap
- Specified by:
unwrapin interfaceWrapper- Throws:
SQLException
-
isWrapperFor
- Specified by:
isWrapperForin interfaceWrapper
-
getMaxLogicalLobSize
public long getMaxLogicalLobSize()- Specified by:
getMaxLogicalLobSizein interfaceDatabaseMetaData
-