Class DatabaseMetaData

java.lang.Object
com.mysql.jdbc.DatabaseMetaData
All Implemented Interfaces:
DatabaseMetaData, Wrapper
Direct Known Subclasses:
DatabaseMetaDataUsingInfoSchema, JDBC4DatabaseMetaData
public class DatabaseMetaData extends Object implements DatabaseMetaData
JDBC Interface to Mysql functions

This class provides information about the database as a whole.

Many of the methods here return lists of information in ResultSets. You can use the normal ResultSet methods such as getString and getInt to retrieve the data from these ResultSets. If a given form of metadata is not available, these methods show throw a SQLException.

Some of these methods take arguments that are String patterns. These methods all have names such as fooPattern. Within a pattern String "%" means match any substring of 0 or more characters and "_" means match any one character.

  • Field Details

    • MAX_IDENTIFIER_LENGTH

      protected static final int MAX_IDENTIFIER_LENGTH
      See Also:

    • TABLE_AS_BYTES

      protected static final byte[] TABLE_AS_BYTES

    • SYSTEM_TABLE_AS_BYTES

      protected static final byte[] SYSTEM_TABLE_AS_BYTES

    • VIEW_AS_BYTES

      protected static final byte[] VIEW_AS_BYTES

    • conn

      protected MySQLConnection conn
      The connection to the database

    • database

      protected String database
      The 'current' database name being used

    • quotedId

      protected final String quotedId
      What character to use when quoting identifiers

  • Constructor Details

    • DatabaseMetaData

      protected DatabaseMetaData(MySQLConnection connToSet, String databaseToSet)
      Creates a new DatabaseMetaData object.
      Parameters:
      connToSet -
      databaseToSet -

  • Method Details

    • getInstance

      protected static DatabaseMetaData getInstance(MySQLConnection connToSet, String databaseToSet, boolean checkForInfoSchema) throws SQLException
      Parameters:
      connToSet - must not be null
      databaseToSet -
      checkForInfoSchema -
      Returns:
      Throws:
      SQLException

    • allProceduresAreCallable

      public boolean allProceduresAreCallable() throws SQLException
      Can all the procedures returned by getProcedures be called by the current user?
      Specified by:
      allProceduresAreCallable in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • allTablesAreSelectable

      public boolean allTablesAreSelectable() throws SQLException
      Can all the tables returned by getTable be SELECTed by the current user?
      Specified by:
      allTablesAreSelectable in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • buildResultSet

      static ResultSet buildResultSet(Field[] fields, ArrayList<ResultSetRow> rows, MySQLConnection c) throws SQLException
      Throws:
      SQLException

    • convertToJdbcFunctionList

      protected void convertToJdbcFunctionList(String catalog, ResultSet proceduresRs, boolean needsClientFiltering, String db, List<DatabaseMetaData.ComparableWrapper<String, ResultSetRow>> procedureRows, int nameIndex, Field[] fields) throws SQLException
      Throws:
      SQLException

    • getFullyQualifiedName

      protected String getFullyQualifiedName(String catalog, String entity)
      Builds and returns a fully qualified name, quoted if necessary, for the given catalog and database entity.

    • getJDBC4FunctionNoTableConstant

      protected int getJDBC4FunctionNoTableConstant()
      Getter to JDBC4 DatabaseMetaData.functionNoTable constant. This method must be overridden by JDBC4 subclasses. This implementation should never be called.
      Returns:
      0

    • convertToJdbcProcedureList

      protected void convertToJdbcProcedureList(boolean fromSelect, String catalog, ResultSet proceduresRs, boolean needsClientFiltering, String db, List<DatabaseMetaData.ComparableWrapper<String, ResultSetRow>> procedureRows, int nameIndex) throws SQLException
      Throws:
      SQLException

    • getColumnType

      protected int getColumnType(boolean isOutParam, boolean isInParam, boolean isReturnParam, boolean forGetFunctionColumns)
      Determines the COLUMN_TYPE information based on parameter type (IN, OUT or INOUT) or function return parameter.
      Parameters:
      isOutParam - Indicates whether it's an output parameter.
      isInParam - Indicates whether it's an input parameter.
      isReturnParam - Indicates whether it's a function return parameter.
      forGetFunctionColumns - Indicates whether the column belong to a function. This argument is required for JDBC4, in which case this method must be overridden to provide the correct functionality.
      Returns:
      The corresponding COLUMN_TYPE as in java.sql.getProcedureColumns API.

    • getExceptionInterceptor

      protected ExceptionInterceptor getExceptionInterceptor()

    • dataDefinitionCausesTransactionCommit

      public boolean dataDefinitionCausesTransactionCommit() throws SQLException
      Does a data definition statement within a transaction force the transaction to commit?
      Specified by:
      dataDefinitionCausesTransactionCommit in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • dataDefinitionIgnoredInTransactions

      public boolean dataDefinitionIgnoredInTransactions() throws SQLException
      Is a data definition statement within a transaction ignored?
      Specified by:
      dataDefinitionIgnoredInTransactions in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • deletesAreDetected

      public boolean deletesAreDetected(int type) throws SQLException
      JDBC 2.0 Determine whether or not a visible row delete can be detected by calling ResultSet.rowDeleted(). If deletesAreDetected() returns false, then deleted rows are removed from the result set.
      Specified by:
      deletesAreDetected in interface DatabaseMetaData
      Parameters:
      type - set type, i.e. ResultSet.TYPE_XXX
      Returns:
      true if changes are detected by the resultset type
      Throws:
      SQLException - if a database-access error occurs.

    • doesMaxRowSizeIncludeBlobs

      public boolean doesMaxRowSizeIncludeBlobs() throws SQLException
      Did getMaxRowSize() include LONGVARCHAR and LONGVARBINARY blobs?
      Specified by:
      doesMaxRowSizeIncludeBlobs in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • extractForeignKeyForTable

      public List<ResultSetRow> extractForeignKeyForTable(ArrayList<ResultSetRow> rows, ResultSet rs, String catalog) throws SQLException
      Extracts foreign key info for one table.
      Parameters:
      rows - the list of rows to add to
      rs - the result set from 'SHOW CREATE TABLE'
      catalog - the database name
      Returns:
      the list of rows with new rows added
      Throws:
      SQLException - if a database access error occurs

    • extractForeignKeyFromCreateTable

      public ResultSet extractForeignKeyFromCreateTable(String catalog, String tableName) throws SQLException
      Creates a result set similar enough to 'SHOW TABLE STATUS' to allow the same code to work on extracting the foreign key data
      Parameters:
      catalog - the database name to extract foreign key info for
      tableName - the table to extract foreign key info for
      connToUse - the database connection to use
      metadata - the DatabaseMetaData instance calling this method
      Returns:
      A result set that has the structure of 'show table status'
      Throws:
      SQLException - if a database access error occurs.

    • getAttributes

      public ResultSet getAttributes(String arg0, String arg1, String arg2, String arg3) throws SQLException
      Specified by:
      getAttributes in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • getBestRowIdentifier

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

      1. 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
      2. COLUMN_NAME String => column name
      3. DATA_TYPE short => SQL data type from java.sql.Types
      4. TYPE_NAME String => Data source dependent type name
      5. COLUMN_SIZE int => precision
      6. BUFFER_LENGTH int => not used
      7. DECIMAL_DIGITS short => scale
      8. 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

      Specified by:
      getBestRowIdentifier in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schema - a schema name; "" retrieves those without a schema
      table - a table name
      scope - the scope of interest; use same values as SCOPE
      nullable - include columns that are nullable?
      Returns:
      ResultSet each row is a column description
      Throws:
      SQLException

    • getCatalogIterator

      protected DatabaseMetaData.IteratorWithCleanup<String> getCatalogIterator(String catalogSpec) throws SQLException
      Throws:
      SQLException

    • getCatalogs

      public ResultSet getCatalogs() throws SQLException
      Get the catalog names available in this database. The results are ordered by catalog name.

      The catalog column is:

      1. TABLE_CAT String => catalog name

      Specified by:
      getCatalogs in interface DatabaseMetaData
      Returns:
      ResultSet each row has a single String column that is a catalog name
      Throws:
      SQLException

    • getCatalogSeparator

      public String getCatalogSeparator() throws SQLException
      What's the separator between catalog and table name?
      Specified by:
      getCatalogSeparator in interface DatabaseMetaData
      Returns:
      the separator string
      Throws:
      SQLException

    • getCatalogTerm

      public String getCatalogTerm() throws SQLException
      What's the database vendor's preferred term for "catalog"?
      Specified by:
      getCatalogTerm in interface DatabaseMetaData
      Returns:
      the vendor term
      Throws:
      SQLException

    • getColumnPrivileges

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

      Only privileges matching the column name criteria are returned. They are ordered by COLUMN_NAME and PRIVILEGE.

      Each privilige description has the following columns:

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

      Specified by:
      getColumnPrivileges in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schema - a schema name; "" retrieves those without a schema
      table - a table name
      columnNamePattern - a column name pattern
      Returns:
      ResultSet each row is a column privilege description
      Throws:
      SQLException - if a database access error occurs
      See Also:

    • getColumns

      public ResultSet getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) throws SQLException
      Get a description of table columns available in a catalog.

      Only column descriptions matching the catalog, schema, table and column name criteria are returned. They are ordered by TABLE_SCHEM, TABLE_NAME and ORDINAL_POSITION.

      Each column description has the following columns:

      1. TABLE_CAT String => table catalog (may be null)
      2. TABLE_SCHEM String => table schema (may be null)
      3. TABLE_NAME String => table name
      4. COLUMN_NAME String => column name
      5. DATA_TYPE short => SQL type from java.sql.Types
      6. TYPE_NAME String => Data source dependent type name
      7. COLUMN_SIZE int => column size. For char or date types this is the maximum number of characters, for numeric or decimal types this is precision.
      8. BUFFER_LENGTH is not used.
      9. DECIMAL_DIGITS int => the number of fractional digits
      10. NUM_PREC_RADIX int => Radix (typically either 10 or 2)
      11. NULLABLE int => is NULL allowed?
        • columnNoNulls - might not allow NULL values
        • columnNullable - definitely allows NULL values
        • columnNullableUnknown - nullability unknown
      12. REMARKS String => comment describing column (may be null)
      13. COLUMN_DEF String => default value (may be null)
      14. SQL_DATA_TYPE int => unused
      15. SQL_DATETIME_SUB int => unused
      16. CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column
      17. ORDINAL_POSITION int => index of column in table (starting at 1)
      18. IS_NULLABLE String => "NO" means column definitely does not allow NULL values; "YES" means the column might allow NULL values. An empty string means nobody knows.

      Specified by:
      getColumns in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schemaPattern - a schema name pattern; "" retrieves those without a schema
      tableNamePattern - a table name pattern
      columnNamePattern - a column name pattern
      Returns:
      ResultSet each row is a column description
      Throws:
      SQLException - if a database access error occurs
      See Also:

    • createColumnsFields

      protected Field[] createColumnsFields()

    • getConnection

      public Connection getConnection() throws SQLException
      JDBC 2.0 Return the connection that produced this metadata object.
      Specified by:
      getConnection in interface DatabaseMetaData
      Returns:
      the connection that produced this metadata object.
      Throws:
      SQLException - if a database error occurs

    • getCrossReference

      public ResultSet getCrossReference(String primaryCatalog, String primarySchema, String primaryTable, String foreignCatalog, String foreignSchema, String foreignTable) throws SQLException
      Get a description of the foreign key columns in the foreign key table that reference the primary key columns of the primary key table (describe how one table imports another's key.) This should normally return a single foreign key/primary key pair (most tables only import a foreign key from a table once.) They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.

      Each foreign key column description has the following columns:

      1. PKTABLE_CAT String => primary key table catalog (may be null)
      2. PKTABLE_SCHEM String => primary key table schema (may be null)
      3. PKTABLE_NAME String => primary key table name
      4. PKCOLUMN_NAME String => primary key column name
      5. FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
      6. FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
      7. FKTABLE_NAME String => foreign key table name being exported
      8. FKCOLUMN_NAME String => foreign key column name being exported
      9. KEY_SEQ short => sequence number within foreign key
      10. UPDATE_RULE short => What happens to foreign key when primary is updated:
        • importedKeyCascade - change imported key to agree with primary key update
        • importedKeyRestrict - do not allow update of primary key if it has been imported
        • importedKeySetNull - change imported key to NULL if its primary key has been updated
      11. DELETE_RULE short => What happens to the foreign key when primary is deleted.
        • importedKeyCascade - delete rows that import a deleted key
        • importedKeyRestrict - do not allow delete of primary key if it has been imported
        • importedKeySetNull - change imported key to NULL if its primary key has been deleted
      12. FK_NAME String => foreign key identifier (may be null)
      13. PK_NAME String => primary key identifier (may be null)

      Specified by:
      getCrossReference in interface DatabaseMetaData
      Parameters:
      primaryCatalog - a catalog name; "" retrieves those without a catalog
      primarySchema - a schema name pattern; "" retrieves those without a schema
      primaryTable - a table name
      foreignCatalog - a catalog name; "" retrieves those without a catalog
      foreignSchema - a schema name pattern; "" retrieves those without a schema
      foreignTable - a table name
      Returns:
      ResultSet each row is a foreign key column description
      Throws:
      SQLException - if a database access error occurs

    • createFkMetadataFields

      protected Field[] createFkMetadataFields()

    • getDatabaseMajorVersion

      public int getDatabaseMajorVersion() throws SQLException
      Specified by:
      getDatabaseMajorVersion in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • getDatabaseMinorVersion

      public int getDatabaseMinorVersion() throws SQLException
      Specified by:
      getDatabaseMinorVersion in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • getDatabaseProductName

      public String getDatabaseProductName() throws SQLException
      What's the name of this database product?
      Specified by:
      getDatabaseProductName in interface DatabaseMetaData
      Returns:
      database product name
      Throws:
      SQLException

    • getDatabaseProductVersion

      public String getDatabaseProductVersion() throws SQLException
      What's the version of this database product?
      Specified by:
      getDatabaseProductVersion in interface DatabaseMetaData
      Returns:
      database version
      Throws:
      SQLException

    • getDefaultTransactionIsolation

      public int getDefaultTransactionIsolation() throws SQLException
      What's the database's default transaction isolation level? The values are defined in java.sql.Connection.
      Specified by:
      getDefaultTransactionIsolation in interface DatabaseMetaData
      Returns:
      the default isolation level
      Throws:
      SQLException - if a database access error occurs
      See Also:

    • getDriverMajorVersion

      public int getDriverMajorVersion()
      What's this JDBC driver's major version number?
      Specified by:
      getDriverMajorVersion in interface DatabaseMetaData
      Returns:
      JDBC driver major version

    • getDriverMinorVersion

      public int getDriverMinorVersion()
      What's this JDBC driver's minor version number?
      Specified by:
      getDriverMinorVersion in interface DatabaseMetaData
      Returns:
      JDBC driver minor version number

    • getDriverName

      public String getDriverName() throws SQLException
      What's the name of this JDBC driver?
      Specified by:
      getDriverName in interface DatabaseMetaData
      Returns:
      JDBC driver name
      Throws:
      SQLException

    • getDriverVersion

      public String getDriverVersion() throws SQLException
      What's the version of this JDBC driver?
      Specified by:
      getDriverVersion in interface DatabaseMetaData
      Returns:
      JDBC driver version
      Throws:
      SQLException

    • getExportedKeys

      public ResultSet getExportedKeys(String catalog, String schema, String table) throws SQLException
      Get a description of a foreign key columns that reference a 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:

      1. PKTABLE_CAT String => primary key table catalog (may be null)
      2. PKTABLE_SCHEM String => primary key table schema (may be null)
      3. PKTABLE_NAME String => primary key table name
      4. PKCOLUMN_NAME String => primary key column name
      5. FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
      6. FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
      7. FKTABLE_NAME String => foreign key table name being exported
      8. FKCOLUMN_NAME String => foreign key column name being exported
      9. KEY_SEQ short => sequence number within foreign key
      10. UPDATE_RULE short => What happens to foreign key when primary is updated:
        • importedKeyCascade - change imported key to agree with primary key update
        • importedKeyRestrict - do not allow update of primary key if it has been imported
        • importedKeySetNull - change imported key to NULL if its primary key has been updated
      11. DELETE_RULE short => What happens to the foreign key when primary is deleted.
        • importedKeyCascade - delete rows that import a deleted key
        • importedKeyRestrict - do not allow delete of primary key if it has been imported
        • importedKeySetNull - change imported key to NULL if its primary key has been deleted
      12. FK_NAME String => foreign key identifier (may be null)
      13. PK_NAME String => primary key identifier (may be null)

      Specified by:
      getExportedKeys in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schema - a schema name pattern; "" retrieves those without a schema
      table - a table name
      Returns:
      ResultSet each row is a foreign key column description
      Throws:
      SQLException - if a database access error occurs
      See Also:

    • getExportKeyResults

      protected void getExportKeyResults(String catalog, String exportingTable, String keysComment, List<ResultSetRow> tuples, String fkTableName) throws SQLException
      Adds to the tuples list the exported keys of exportingTable based on the keysComment from the 'show table status' sql command. KeysComment is that part of the comment field that follows the "InnoDB free ...;" prefix.
      Parameters:
      catalog - the database to use
      exportingTable - the table keys are being exported from
      keysComment - the comment from 'show table status'
      tuples - the rows to add results to
      fkTableName - the foreign key table name
      Throws:
      SQLException - if a database access error occurs

    • getExtraNameCharacters

      public String getExtraNameCharacters() throws SQLException
      Get all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, 0-9 and _).
      Specified by:
      getExtraNameCharacters in interface DatabaseMetaData
      Returns:
      the string containing the extra characters
      Throws:
      SQLException

    • getForeignKeyActions

      protected int[] getForeignKeyActions(String commentString)
      Returns the DELETE and UPDATE foreign key actions from the given 'SHOW TABLE STATUS' string, with the DELETE action being the first item in the array, and the UPDATE action being the second.
      Parameters:
      commentString - the comment from 'SHOW TABLE STATUS'
      Returns:
      int[] [0] = delete action, [1] = update action

    • getIdentifierQuoteString

      public String getIdentifierQuoteString() throws SQLException
      What's the string used to quote SQL identifiers? This returns a space " " if identifier quoting isn't supported. A JDBC compliant driver always uses a double quote character.
      Specified by:
      getIdentifierQuoteString in interface DatabaseMetaData
      Returns:
      the quoting string
      Throws:
      SQLException

    • getImportedKeys

      public ResultSet getImportedKeys(String catalog, String schema, String table) throws SQLException
      Get a description of the primary key columns that are referenced by a table's foreign key columns (the primary keys imported by a table). They are ordered by PKTABLE_CAT, PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ.

      Each primary key column description has the following columns:

      1. PKTABLE_CAT String => primary key table catalog being imported (may be null)
      2. PKTABLE_SCHEM String => primary key table schema being imported (may be null)
      3. PKTABLE_NAME String => primary key table name being imported
      4. PKCOLUMN_NAME String => primary key column name being imported
      5. FKTABLE_CAT String => foreign key table catalog (may be null)
      6. FKTABLE_SCHEM String => foreign key table schema (may be null)
      7. FKTABLE_NAME String => foreign key table name
      8. FKCOLUMN_NAME String => foreign key column name
      9. KEY_SEQ short => sequence number within foreign key
      10. UPDATE_RULE short => What happens to foreign key when primary is updated:
        • importedKeyCascade - change imported key to agree with primary key update
        • importedKeyRestrict - do not allow update of primary key if it has been imported
        • importedKeySetNull - change imported key to NULL if its primary key has been updated
      11. DELETE_RULE short => What happens to the foreign key when primary is deleted.
        • importedKeyCascade - delete rows that import a deleted key
        • importedKeyRestrict - do not allow delete of primary key if it has been imported
        • importedKeySetNull - change imported key to NULL if its primary key has been deleted
      12. FK_NAME String => foreign key name (may be null)
      13. PK_NAME String => primary key name (may be null)

      Specified by:
      getImportedKeys in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schema - a schema name pattern; "" retrieves those without a schema
      table - a table name
      Returns:
      ResultSet each row is a primary key column description
      Throws:
      SQLException - if a database access error occurs
      See Also:

    • getImportKeyResults

      protected void getImportKeyResults(String catalog, String importingTable, String keysComment, List<ResultSetRow> tuples) throws SQLException
      Populates the tuples list with the imported keys of importingTable based on the keysComment from the 'show table status' sql command. KeysComment is that part of the comment field that follows the "InnoDB free ...;" prefix.
      Parameters:
      catalog - the database to use
      importingTable - the table keys are being imported to
      keysComment - the comment from 'show table status'
      tuples - the rows to add results to
      Throws:
      SQLException - if a database access error occurs

    • getIndexInfo

      public ResultSet getIndexInfo(String catalog, String schema, String table, boolean unique, boolean approximate) throws SQLException
      Get a description of a 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:

      1. TABLE_CAT String => table catalog (may be null)
      2. TABLE_SCHEM String => table schema (may be null)
      3. TABLE_NAME String => table name
      4. NON_UNIQUE boolean => Can index values be non-unique? false when TYPE is tableIndexStatistic
      5. INDEX_QUALIFIER String => index catalog (may be null); null when TYPE is tableIndexStatistic
      6. INDEX_NAME String => index name; null when TYPE is tableIndexStatistic
      7. 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
      8. ORDINAL_POSITION short => column sequence number within index; zero when TYPE is tableIndexStatistic
      9. COLUMN_NAME String => column name; null when TYPE is tableIndexStatistic
      10. ASC_OR_DESC String => column sort sequence, "A" => ascending, "D" => descending, may be null if sort sequence is not supported; null when TYPE is tableIndexStatistic
      11. CARDINALITY int/long => When TYPE is tableIndexStatisic then this is the number of rows in the table; otherwise it is the number of unique values in the index.
      12. PAGES int/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.
      13. FILTER_CONDITION String => Filter condition, if any. (may be null)

      Specified by:
      getIndexInfo in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schema - a schema name pattern; "" retrieves those without a schema
      table - a table name
      unique - when true, return only indices for unique values; when false, return indices regardless of whether unique or not
      approximate - when true, result is allowed to reflect approximate or out of data values; when false, results are requested to be accurate
      Returns:
      ResultSet each row is an index column description
      Throws:
      SQLException

    • createIndexInfoFields

      protected Field[] createIndexInfoFields()

    • getJDBCMajorVersion

      public int getJDBCMajorVersion() throws SQLException
      Specified by:
      getJDBCMajorVersion in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • getJDBCMinorVersion

      public int getJDBCMinorVersion() throws SQLException
      Specified by:
      getJDBCMinorVersion in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • getMaxBinaryLiteralLength

      public int getMaxBinaryLiteralLength() throws SQLException
      How many hex characters can you have in an inline binary literal?
      Specified by:
      getMaxBinaryLiteralLength in interface DatabaseMetaData
      Returns:
      max literal length
      Throws:
      SQLException

    • getMaxCatalogNameLength

      public int getMaxCatalogNameLength() throws SQLException
      What's the maximum length of a catalog name?
      Specified by:
      getMaxCatalogNameLength in interface DatabaseMetaData
      Returns:
      max name length in bytes
      Throws:
      SQLException

    • getMaxCharLiteralLength

      public int getMaxCharLiteralLength() throws SQLException
      What's the max length for a character literal?
      Specified by:
      getMaxCharLiteralLength in interface DatabaseMetaData
      Returns:
      max literal length
      Throws:
      SQLException

    • getMaxColumnNameLength

      public int getMaxColumnNameLength() throws SQLException
      What's the limit on column name length?
      Specified by:
      getMaxColumnNameLength in interface DatabaseMetaData
      Returns:
      max literal length
      Throws:
      SQLException

    • getMaxColumnsInGroupBy

      public int getMaxColumnsInGroupBy() throws SQLException
      What's the maximum number of columns in a "GROUP BY" clause?
      Specified by:
      getMaxColumnsInGroupBy in interface DatabaseMetaData
      Returns:
      max number of columns
      Throws:
      SQLException

    • getMaxColumnsInIndex

      public int getMaxColumnsInIndex() throws SQLException
      What's the maximum number of columns allowed in an index?
      Specified by:
      getMaxColumnsInIndex in interface DatabaseMetaData
      Returns:
      max columns
      Throws:
      SQLException

    • getMaxColumnsInOrderBy

      public int getMaxColumnsInOrderBy() throws SQLException
      What's the maximum number of columns in an "ORDER BY" clause?
      Specified by:
      getMaxColumnsInOrderBy in interface DatabaseMetaData
      Returns:
      max columns
      Throws:
      SQLException

    • getMaxColumnsInSelect

      public int getMaxColumnsInSelect() throws SQLException
      What's the maximum number of columns in a "SELECT" list?
      Specified by:
      getMaxColumnsInSelect in interface DatabaseMetaData
      Returns:
      max columns
      Throws:
      SQLException

    • getMaxColumnsInTable

      public int getMaxColumnsInTable() throws SQLException
      What's maximum number of columns in a table?
      Specified by:
      getMaxColumnsInTable in interface DatabaseMetaData
      Returns:
      max columns
      Throws:
      SQLException

    • getMaxConnections

      public int getMaxConnections() throws SQLException
      How many active connections can we have at a time to this database?
      Specified by:
      getMaxConnections in interface DatabaseMetaData
      Returns:
      max connections
      Throws:
      SQLException

    • getMaxCursorNameLength

      public int getMaxCursorNameLength() throws SQLException
      What's the maximum cursor name length?
      Specified by:
      getMaxCursorNameLength in interface DatabaseMetaData
      Returns:
      max cursor name length in bytes
      Throws:
      SQLException

    • getMaxIndexLength

      public int getMaxIndexLength() throws SQLException
      What's the maximum length of an index (in bytes)?
      Specified by:
      getMaxIndexLength in interface DatabaseMetaData
      Returns:
      max index length in bytes
      Throws:
      SQLException

    • getMaxProcedureNameLength

      public int getMaxProcedureNameLength() throws SQLException
      What's the maximum length of a procedure name?
      Specified by:
      getMaxProcedureNameLength in interface DatabaseMetaData
      Returns:
      max name length in bytes
      Throws:
      SQLException

    • getMaxRowSize

      public int getMaxRowSize() throws SQLException
      What's the maximum length of a single row?
      Specified by:
      getMaxRowSize in interface DatabaseMetaData
      Returns:
      max row size in bytes
      Throws:
      SQLException

    • getMaxSchemaNameLength

      public int getMaxSchemaNameLength() throws SQLException
      What's the maximum length allowed for a schema name?
      Specified by:
      getMaxSchemaNameLength in interface DatabaseMetaData
      Returns:
      max name length in bytes
      Throws:
      SQLException

    • getMaxStatementLength

      public int getMaxStatementLength() throws SQLException
      What's the maximum length of a SQL statement?
      Specified by:
      getMaxStatementLength in interface DatabaseMetaData
      Returns:
      max length in bytes
      Throws:
      SQLException

    • getMaxStatements

      public int getMaxStatements() throws SQLException
      How many active statements can we have open at one time to this database?
      Specified by:
      getMaxStatements in interface DatabaseMetaData
      Returns:
      the maximum
      Throws:
      SQLException

    • getMaxTableNameLength

      public int getMaxTableNameLength() throws SQLException
      What's the maximum length of a table name?
      Specified by:
      getMaxTableNameLength in interface DatabaseMetaData
      Returns:
      max name length in bytes
      Throws:
      SQLException

    • getMaxTablesInSelect

      public int getMaxTablesInSelect() throws SQLException
      What's the maximum number of tables in a SELECT?
      Specified by:
      getMaxTablesInSelect in interface DatabaseMetaData
      Returns:
      the maximum
      Throws:
      SQLException

    • getMaxUserNameLength

      public int getMaxUserNameLength() throws SQLException
      What's the maximum length of a user name?
      Specified by:
      getMaxUserNameLength in interface DatabaseMetaData
      Returns:
      max name length in bytes
      Throws:
      SQLException

    • getNumericFunctions

      public String getNumericFunctions() throws SQLException
      Get a comma separated list of math functions.
      Specified by:
      getNumericFunctions in interface DatabaseMetaData
      Returns:
      the list
      Throws:
      SQLException

    • getPrimaryKeys

      public ResultSet getPrimaryKeys(String catalog, String schema, String table) throws SQLException
      Get a description of a table's primary key columns. They are ordered by COLUMN_NAME.

      Each column description has the following columns:

      1. TABLE_CAT String => table catalog (may be null)
      2. TABLE_SCHEM String => table schema (may be null)
      3. TABLE_NAME String => table name
      4. COLUMN_NAME String => column name
      5. KEY_SEQ short => sequence number within primary key
      6. PK_NAME String => primary key name (may be null)

      Specified by:
      getPrimaryKeys in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schema - a schema name pattern; "" retrieves those without a schema
      table - a table name
      Returns:
      ResultSet each row is a primary key column description
      Throws:
      SQLException

    • getProcedureColumns

      public ResultSet getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern) throws SQLException
      Get a description of a catalog's stored procedure parameters and result columns.

      Only descriptions matching the schema, procedure and parameter name criteria are returned. They are ordered by PROCEDURE_SCHEM and PROCEDURE_NAME. Within this, the return value, if any, is first. Next are the parameter descriptions in call order. The column descriptions follow in column number order.

      Each row in the ResultSet is a parameter description or column description with the following fields:

      1. PROCEDURE_CAT String => procedure catalog (may be null)
      2. PROCEDURE_SCHEM String => procedure schema (may be null)
      3. PROCEDURE_NAME String => procedure name
      4. COLUMN_NAME String => column/parameter name
      5. 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
      6. DATA_TYPE short => SQL type from java.sql.Types
      7. TYPE_NAME String => SQL type name
      8. PRECISION int => precision
      9. LENGTH int => length in bytes of data
      10. SCALE short => scale
      11. RADIX short => radix
      12. NULLABLE short => can it contain NULL?
        • procedureNoNulls - does not allow NULL values
        • procedureNullable - allows NULL values
        • procedureNullableUnknown - nullability unknown
      13. REMARKS String => comment describing parameter/column
      14. COLUMN_DEF String => default value for the column (may be null)
      15. SQL_DATA_TYPE int => reserved for future use
      16. SQL_DATETIME_SUB int => reserved for future use
      17. CHAR_OCTET_LENGTH int => the maximum length of binary and character based columns. For any other datatype the returned value is a NULL
      18. ORDINAL_POSITION int => the ordinal position, starting from 1. A value of 0 is returned if this row describes the procedure's return value.
      19. IS_NULLABLE String => ISO rules are used to determine the nullability for a column.
        • YES --- if the parameter can include NULLs
        • NO --- if the parameter cannot include NULLs
        • empty string --- if the nullability for the parameter is unknown
      20. 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.

      Specified by:
      getProcedureColumns in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schemaPattern - a schema name pattern; "" retrieves those without a schema
      procedureNamePattern - a procedure name pattern
      columnNamePattern - a column name pattern
      Returns:
      ResultSet each row is a stored procedure parameter or column description
      Throws:
      SQLException - if a database access error occurs
      See Also:

    • createProcedureColumnsFields

      protected Field[] createProcedureColumnsFields()

    • getProcedureOrFunctionColumns

      protected ResultSet getProcedureOrFunctionColumns(Field[] fields, String catalog, String schemaPattern, String procedureOrFunctionNamePattern, String columnNamePattern, boolean returnProcedures, boolean returnFunctions) throws SQLException
      Throws:
      SQLException

    • getProcedures

      public ResultSet getProcedures(String catalog, String schemaPattern, String procedureNamePattern) throws SQLException
      Get a description of stored procedures available in a catalog.

      Only procedure descriptions matching the schema and procedure name criteria are returned. They are ordered by PROCEDURE_SCHEM, and PROCEDURE_NAME.

      Each procedure description has the the following columns:

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

      Specified by:
      getProcedures in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schemaPattern - a schema name pattern; "" retrieves those without a schema
      procedureNamePattern - a procedure name pattern
      Returns:
      ResultSet each row is a procedure description
      Throws:
      SQLException - if a database access error occurs
      See Also:

    • createFieldMetadataForGetProcedures

      protected Field[] createFieldMetadataForGetProcedures()

    • getProceduresAndOrFunctions

      protected ResultSet getProceduresAndOrFunctions(Field[] fields, String catalog, String schemaPattern, String procedureNamePattern, boolean returnProcedures, boolean returnFunctions) throws SQLException
      Parameters:
      fields -
      catalog -
      schemaPattern -
      procedureNamePattern -
      returnProcedures -
      returnFunctions -
      Throws:
      SQLException

    • getProcedureTerm

      public String getProcedureTerm() throws SQLException
      What's the database vendor's preferred term for "procedure"?
      Specified by:
      getProcedureTerm in interface DatabaseMetaData
      Returns:
      the vendor term
      Throws:
      SQLException - if an error occurs (don't know why it would in this case...)

    • getResultSetHoldability

      public int getResultSetHoldability() throws SQLException
      Specified by:
      getResultSetHoldability in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • getSchemas

      public ResultSet getSchemas() throws SQLException
      Get the schema names available in this database. The results are ordered by schema name.

      The schema column is:

      1. TABLE_SCHEM String => schema name

      Specified by:
      getSchemas in interface DatabaseMetaData
      Returns:
      ResultSet each row has a single String column that is a schema name
      Throws:
      SQLException

    • getSchemaTerm

      public String getSchemaTerm() throws SQLException
      What's the database vendor's preferred term for "schema"?
      Specified by:
      getSchemaTerm in interface DatabaseMetaData
      Returns:
      the vendor term
      Throws:
      SQLException

    • getSearchStringEscape

      public String getSearchStringEscape() throws SQLException
      This is the string that can be used to escape '_' or '%' in the string pattern style catalog search parameters.

      The '_' character represents any single character.

      The '%' character represents any sequence of zero or more characters.

      Specified by:
      getSearchStringEscape in interface DatabaseMetaData
      Returns:
      the string used to escape wildcard characters
      Throws:
      SQLException

    • getSQLKeywords

      public String getSQLKeywords() throws SQLException
      Get a comma separated list of all a database's SQL keywords that are NOT also SQL92/SQL2003 keywords.
      Specified by:
      getSQLKeywords in interface DatabaseMetaData
      Returns:
      the list
      Throws:
      SQLException

    • getSQLStateType

      public int getSQLStateType() throws SQLException
      Specified by:
      getSQLStateType in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • getStringFunctions

      public String getStringFunctions() throws SQLException
      Get a comma separated list of string functions.
      Specified by:
      getStringFunctions in interface DatabaseMetaData
      Returns:
      the list
      Throws:
      SQLException

    • getSuperTables

      public ResultSet getSuperTables(String arg0, String arg1, String arg2) throws SQLException
      Specified by:
      getSuperTables in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • getSuperTypes

      public ResultSet getSuperTypes(String arg0, String arg1, String arg2) throws SQLException
      Specified by:
      getSuperTypes in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • getSystemFunctions

      public String getSystemFunctions() throws SQLException
      Get a comma separated list of system functions.
      Specified by:
      getSystemFunctions in interface DatabaseMetaData
      Returns:
      the list
      Throws:
      SQLException

    • getTableNameWithCase

      protected String getTableNameWithCase(String table)

    • getTablePrivileges

      public ResultSet getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern) throws SQLException
      Get a description of the access rights for each table available in a catalog.

      Only privileges matching the schema and table name criteria are returned. They are ordered by TABLE_SCHEM, TABLE_NAME, and PRIVILEGE.

      Each privilige description has the following columns:

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

      Specified by:
      getTablePrivileges in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schemaPattern - a schema name pattern; "" retrieves those without a schema
      tableNamePattern - a table name pattern
      Returns:
      ResultSet each row is a table privilege description
      Throws:
      SQLException - if a database access error occurs
      See Also:

    • getTables

      public ResultSet getTables(String catalog, String schemaPattern, String tableNamePattern, String[] types) throws SQLException
      Get a description of tables available in a catalog.

      Only table descriptions matching the catalog, schema, table name and type criteria are returned. They are ordered by TABLE_TYPE, TABLE_SCHEM and TABLE_NAME.

      Each table description has the following columns:

      1. TABLE_CAT String => table catalog (may be null)
      2. TABLE_SCHEM String => table schema (may be null)
      3. TABLE_NAME String => table name
      4. TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
      5. REMARKS String => explanatory comment on the table

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

      Specified by:
      getTables in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schemaPattern - a schema name pattern; "" retrieves those without a schema
      tableNamePattern - a table name pattern
      types - a list of table types to include; null returns all types
      Returns:
      ResultSet each row is a table description
      Throws:
      SQLException
      See Also:

    • createTablesFields

      protected Field[] createTablesFields()

    • getTableTypes

      public ResultSet getTableTypes() throws SQLException
      Get the table types available in this database. The results are ordered by table type.

      The table type is:

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

      Specified by:
      getTableTypes in interface DatabaseMetaData
      Returns:
      ResultSet each row has a single String column that is a table type
      Throws:
      SQLException

    • getTimeDateFunctions

      public String getTimeDateFunctions() throws SQLException
      Get a comma separated list of time and date functions.
      Specified by:
      getTimeDateFunctions in interface DatabaseMetaData
      Returns:
      the list
      Throws:
      SQLException

    • getTypeInfo

      public ResultSet getTypeInfo() throws SQLException
      Get a description of all the standard SQL types supported by this database. They are ordered by DATA_TYPE and then by how closely the data type maps to the corresponding JDBC SQL type.

      Each type description has the following columns:

      1. TYPE_NAME String => Type name
      2. DATA_TYPE short => SQL data type from java.sql.Types
      3. PRECISION int => maximum precision
      4. LITERAL_PREFIX String => prefix used to quote a literal (may be null)
      5. LITERAL_SUFFIX String => suffix used to quote a literal (may be null)
      6. CREATE_PARAMS String => parameters used in creating the type (may be null)
      7. NULLABLE short => can you use NULL for this type?
        • typeNoNulls - does not allow NULL values
        • typeNullable - allows NULL values
        • typeNullableUnknown - nullability unknown
      8. CASE_SENSITIVE boolean=> is it case sensitive?
      9. 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 ..
      10. UNSIGNED_ATTRIBUTE boolean => is it unsigned?
      11. FIXED_PREC_SCALE boolean => can it be a money value?
      12. AUTO_INCREMENT boolean => can it be used for an auto-increment value?
      13. LOCAL_TYPE_NAME String => localized version of type name (may be null)
      14. MINIMUM_SCALE short => minimum scale supported
      15. MAXIMUM_SCALE short => maximum scale supported
      16. SQL_DATA_TYPE int => unused
      17. SQL_DATETIME_SUB int => unused
      18. NUM_PREC_RADIX int => usually 2 or 10

      Specified by:
      getTypeInfo in interface DatabaseMetaData
      Returns:
      ResultSet each row is a SQL type description
      Throws:
      SQLException

    • getUDTs

      public ResultSet getUDTs(String catalog, String schemaPattern, String typeNamePattern, int[] types) throws SQLException
      JDBC 2.0 Get a description of the user-defined types defined in a particular schema. Schema specific UDTs may have type JAVA_OBJECT, STRUCT, or DISTINCT.

      Only types matching the catalog, schema, type name and type criteria are returned. They are ordered by DATA_TYPE, TYPE_SCHEM and TYPE_NAME. The type name parameter may be a fully qualified name. In this case, the catalog and schemaPattern parameters are ignored.

      Each type description has the following columns:

      1. TYPE_CAT String => the type's catalog (may be null)
      2. TYPE_SCHEM String => type's schema (may be null)
      3. TYPE_NAME String => type name
      4. CLASS_NAME String => Java class name
      5. DATA_TYPE String => type value defined in java.sql.Types. One of JAVA_OBJECT, STRUCT, or DISTINCT
      6. REMARKS String => explanatory comment on the type

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

      Specified by:
      getUDTs in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
      schemaPattern - a schema name pattern; "" retrieves those without a schema
      typeNamePattern - a type name pattern; may be a fully qualified name
      types - a list of user-named types to include (JAVA_OBJECT, STRUCT, or DISTINCT); null returns all types
      Returns:
      ResultSet - each row is a type description
      Throws:
      SQLException - if a database-access error occurs.

    • getURL

      public String getURL() throws SQLException
      What's the url for this database?
      Specified by:
      getURL in interface DatabaseMetaData
      Returns:
      the url or null if it can't be generated
      Throws:
      SQLException

    • getUserName

      public String getUserName() throws SQLException
      What's our user name as known to the database?
      Specified by:
      getUserName in interface DatabaseMetaData
      Returns:
      our database user name
      Throws:
      SQLException

    • getVersionColumns

      public ResultSet getVersionColumns(String catalog, String schema, String table) throws SQLException
      Get 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:

      1. SCOPE short => is not used
      2. COLUMN_NAME String => column name
      3. DATA_TYPE short => SQL data type from java.sql.Types
      4. TYPE_NAME String => Data source dependent type name
      5. COLUMN_SIZE int => precision
      6. BUFFER_LENGTH int => length of column value in bytes
      7. DECIMAL_DIGITS short => scale
      8. PSEUDO_COLUMN short => is this a 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

      Specified by:
      getVersionColumns in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog
      schema - a schema name; "" retrieves those without a schema
      table - a table name
      Returns:
      ResultSet each row is a column description
      Throws:
      SQLException

    • insertsAreDetected

      public boolean insertsAreDetected(int type) throws SQLException
      JDBC 2.0 Determine whether or not a visible row insert can be detected by calling ResultSet.rowInserted().
      Specified by:
      insertsAreDetected in interface DatabaseMetaData
      Parameters:
      type - set type, i.e. ResultSet.TYPE_XXX
      Returns:
      true if changes are detected by the resultset type
      Throws:
      SQLException - if a database-access error occurs.

    • isCatalogAtStart

      public boolean isCatalogAtStart() throws SQLException
      Does a catalog appear at the start of a qualified table name? (Otherwise it appears at the end)
      Specified by:
      isCatalogAtStart in interface DatabaseMetaData
      Returns:
      true if it appears at the start
      Throws:
      SQLException

    • isReadOnly

      public boolean isReadOnly() throws SQLException
      Is the database in read-only mode?
      Specified by:
      isReadOnly in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • locatorsUpdateCopy

      public boolean locatorsUpdateCopy() throws SQLException
      Specified by:
      locatorsUpdateCopy in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • nullPlusNonNullIsNull

      public boolean nullPlusNonNullIsNull() throws SQLException
      Are concatenations between NULL and non-NULL values NULL? A JDBC compliant driver always returns true.
      Specified by:
      nullPlusNonNullIsNull in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • nullsAreSortedAtEnd

      public boolean nullsAreSortedAtEnd() throws SQLException
      Are NULL values sorted at the end regardless of sort order?
      Specified by:
      nullsAreSortedAtEnd in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • nullsAreSortedAtStart

      public boolean nullsAreSortedAtStart() throws SQLException
      Are NULL values sorted at the start regardless of sort order?
      Specified by:
      nullsAreSortedAtStart in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • nullsAreSortedHigh

      public boolean nullsAreSortedHigh() throws SQLException
      Are NULL values sorted high?
      Specified by:
      nullsAreSortedHigh in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • nullsAreSortedLow

      public boolean nullsAreSortedLow() throws SQLException
      Are NULL values sorted low?
      Specified by:
      nullsAreSortedLow in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • othersDeletesAreVisible

      public boolean othersDeletesAreVisible(int type) throws SQLException
      Specified by:
      othersDeletesAreVisible in interface DatabaseMetaData
      Parameters:
      type -
      Throws:
      SQLException

    • othersInsertsAreVisible

      public boolean othersInsertsAreVisible(int type) throws SQLException
      Specified by:
      othersInsertsAreVisible in interface DatabaseMetaData
      Parameters:
      type -
      Throws:
      SQLException

    • othersUpdatesAreVisible

      public boolean othersUpdatesAreVisible(int type) throws SQLException
      JDBC 2.0 Determine whether changes made by others are visible.
      Specified by:
      othersUpdatesAreVisible in interface DatabaseMetaData
      Parameters:
      type - set type, i.e. ResultSet.TYPE_XXX
      Returns:
      true if changes are visible for the result set type
      Throws:
      SQLException - if a database-access error occurs.

    • ownDeletesAreVisible

      public boolean ownDeletesAreVisible(int type) throws SQLException
      Specified by:
      ownDeletesAreVisible in interface DatabaseMetaData
      Parameters:
      type -
      Throws:
      SQLException

    • ownInsertsAreVisible

      public boolean ownInsertsAreVisible(int type) throws SQLException
      Specified by:
      ownInsertsAreVisible in interface DatabaseMetaData
      Parameters:
      type -
      Throws:
      SQLException

    • ownUpdatesAreVisible

      public boolean ownUpdatesAreVisible(int type) throws SQLException
      JDBC 2.0 Determine whether a result set's own changes visible.
      Specified by:
      ownUpdatesAreVisible in interface DatabaseMetaData
      Parameters:
      type - set type, i.e. ResultSet.TYPE_XXX
      Returns:
      true if changes are visible for the result set type
      Throws:
      SQLException - if a database-access error occurs.

    • parseTableStatusIntoLocalAndReferencedColumns

      protected DatabaseMetaData.LocalAndReferencedColumns parseTableStatusIntoLocalAndReferencedColumns(String keysComment) throws SQLException
      Throws:
      SQLException

    • s2b

      protected byte[] s2b(String s) throws SQLException
      Converts the given string to bytes, using the connection's character encoding, or if not available, the JVM default encoding.
      Parameters:
      s -
      Throws:
      SQLException

    • storesLowerCaseIdentifiers

      public boolean storesLowerCaseIdentifiers() throws SQLException
      Does the database store mixed case unquoted SQL identifiers in lower case?
      Specified by:
      storesLowerCaseIdentifiers in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • storesLowerCaseQuotedIdentifiers

      public boolean storesLowerCaseQuotedIdentifiers() throws SQLException
      Does the database store mixed case quoted SQL identifiers in lower case? A JDBC compliant driver will always return false.
      Specified by:
      storesLowerCaseQuotedIdentifiers in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • storesMixedCaseIdentifiers

      public boolean storesMixedCaseIdentifiers() throws SQLException
      Does the database store mixed case unquoted SQL identifiers in mixed case?
      Specified by:
      storesMixedCaseIdentifiers in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • storesMixedCaseQuotedIdentifiers

      public boolean storesMixedCaseQuotedIdentifiers() throws SQLException
      Does the database store mixed case quoted SQL identifiers in mixed case? A JDBC compliant driver will always return false.
      Specified by:
      storesMixedCaseQuotedIdentifiers in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • storesUpperCaseIdentifiers

      public boolean storesUpperCaseIdentifiers() throws SQLException
      Does the database store mixed case unquoted SQL identifiers in upper case?
      Specified by:
      storesUpperCaseIdentifiers in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • storesUpperCaseQuotedIdentifiers

      public boolean storesUpperCaseQuotedIdentifiers() throws SQLException
      Does the database store mixed case quoted SQL identifiers in upper case? A JDBC compliant driver will always return true.
      Specified by:
      storesUpperCaseQuotedIdentifiers in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsAlterTableWithAddColumn

      public boolean supportsAlterTableWithAddColumn() throws SQLException
      Is "ALTER TABLE" with add column supported?
      Specified by:
      supportsAlterTableWithAddColumn in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsAlterTableWithDropColumn

      public boolean supportsAlterTableWithDropColumn() throws SQLException
      Is "ALTER TABLE" with drop column supported?
      Specified by:
      supportsAlterTableWithDropColumn in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsANSI92EntryLevelSQL

      public boolean supportsANSI92EntryLevelSQL() throws SQLException
      Is the ANSI92 entry level SQL grammar supported? All JDBC compliant drivers must return true.
      Specified by:
      supportsANSI92EntryLevelSQL in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsANSI92FullSQL

      public boolean supportsANSI92FullSQL() throws SQLException
      Is the ANSI92 full SQL grammar supported?
      Specified by:
      supportsANSI92FullSQL in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsANSI92IntermediateSQL

      public boolean supportsANSI92IntermediateSQL() throws SQLException
      Is the ANSI92 intermediate SQL grammar supported?
      Specified by:
      supportsANSI92IntermediateSQL in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsBatchUpdates

      public boolean supportsBatchUpdates() throws SQLException
      JDBC 2.0 Return true if the driver supports batch updates, else return false.
      Specified by:
      supportsBatchUpdates in interface DatabaseMetaData
      Throws:
      SQLException

    • supportsCatalogsInDataManipulation

      public boolean supportsCatalogsInDataManipulation() throws SQLException
      Can a catalog name be used in a data manipulation statement?
      Specified by:
      supportsCatalogsInDataManipulation in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsCatalogsInIndexDefinitions

      public boolean supportsCatalogsInIndexDefinitions() throws SQLException
      Can a catalog name be used in a index definition statement?
      Specified by:
      supportsCatalogsInIndexDefinitions in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsCatalogsInPrivilegeDefinitions

      public boolean supportsCatalogsInPrivilegeDefinitions() throws SQLException
      Can a catalog name be used in a privilege definition statement?
      Specified by:
      supportsCatalogsInPrivilegeDefinitions in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsCatalogsInProcedureCalls

      public boolean supportsCatalogsInProcedureCalls() throws SQLException
      Can a catalog name be used in a procedure call statement?
      Specified by:
      supportsCatalogsInProcedureCalls in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsCatalogsInTableDefinitions

      public boolean supportsCatalogsInTableDefinitions() throws SQLException
      Can a catalog name be used in a table definition statement?
      Specified by:
      supportsCatalogsInTableDefinitions in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsColumnAliasing

      public boolean supportsColumnAliasing() throws SQLException
      Is column aliasing supported?

      If so, the SQL AS clause can be used to provide names for computed columns or to provide alias names for columns as required. A JDBC compliant driver always returns true.

      Specified by:
      supportsColumnAliasing in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsConvert

      public boolean supportsConvert() throws SQLException
      Is the CONVERT function between SQL types supported?
      Specified by:
      supportsConvert in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsConvert

      public boolean supportsConvert(int fromType, int toType) throws SQLException
      Is CONVERT between the given SQL types supported?
      Specified by:
      supportsConvert in interface DatabaseMetaData
      Parameters:
      fromType - the type to convert from
      toType - the type to convert to
      Returns:
      true if so
      Throws:
      SQLException - if an error occurs
      See Also:

    • supportsCoreSQLGrammar

      public boolean supportsCoreSQLGrammar() throws SQLException
      Is the ODBC Core SQL grammar supported?
      Specified by:
      supportsCoreSQLGrammar in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsCorrelatedSubqueries

      public boolean supportsCorrelatedSubqueries() throws SQLException
      Are correlated subqueries supported? A JDBC compliant driver always returns true.
      Specified by:
      supportsCorrelatedSubqueries in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsDataDefinitionAndDataManipulationTransactions

      public boolean supportsDataDefinitionAndDataManipulationTransactions() throws SQLException
      Are both data definition and data manipulation statements within a transaction supported?
      Specified by:
      supportsDataDefinitionAndDataManipulationTransactions in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsDataManipulationTransactionsOnly

      public boolean supportsDataManipulationTransactionsOnly() throws SQLException
      Are only data manipulation statements within a transaction supported?
      Specified by:
      supportsDataManipulationTransactionsOnly in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsDifferentTableCorrelationNames

      public boolean supportsDifferentTableCorrelationNames() throws SQLException
      If table correlation names are supported, are they restricted to be different from the names of the tables? A JDBC compliant driver always returns true.
      Specified by:
      supportsDifferentTableCorrelationNames in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsExpressionsInOrderBy

      public boolean supportsExpressionsInOrderBy() throws SQLException
      Are expressions in "ORDER BY" lists supported?
      Specified by:
      supportsExpressionsInOrderBy in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsExtendedSQLGrammar

      public boolean supportsExtendedSQLGrammar() throws SQLException
      Is the ODBC Extended SQL grammar supported?
      Specified by:
      supportsExtendedSQLGrammar in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsFullOuterJoins

      public boolean supportsFullOuterJoins() throws SQLException
      Are full nested outer joins supported?
      Specified by:
      supportsFullOuterJoins in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsGetGeneratedKeys

      public boolean supportsGetGeneratedKeys()
      JDBC 3.0
      Specified by:
      supportsGetGeneratedKeys in interface DatabaseMetaData

    • supportsGroupBy

      public boolean supportsGroupBy() throws SQLException
      Is some form of "GROUP BY" clause supported?
      Specified by:
      supportsGroupBy in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsGroupByBeyondSelect

      public boolean supportsGroupByBeyondSelect() throws SQLException
      Can a "GROUP BY" clause add columns not in the SELECT provided it specifies all the columns in the SELECT?
      Specified by:
      supportsGroupByBeyondSelect in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsGroupByUnrelated

      public boolean supportsGroupByUnrelated() throws SQLException
      Can a "GROUP BY" clause use columns not in the SELECT?
      Specified by:
      supportsGroupByUnrelated in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsIntegrityEnhancementFacility

      public boolean supportsIntegrityEnhancementFacility() throws SQLException
      Is the SQL Integrity Enhancement Facility supported?
      Specified by:
      supportsIntegrityEnhancementFacility in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsLikeEscapeClause

      public boolean supportsLikeEscapeClause() throws SQLException
      Is the escape character in "LIKE" clauses supported? A JDBC compliant driver always returns true.
      Specified by:
      supportsLikeEscapeClause in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsLimitedOuterJoins

      public boolean supportsLimitedOuterJoins() throws SQLException
      Is there limited support for outer joins? (This will be true if supportFullOuterJoins is true.)
      Specified by:
      supportsLimitedOuterJoins in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsMinimumSQLGrammar

      public boolean supportsMinimumSQLGrammar() throws SQLException
      Is the ODBC Minimum SQL grammar supported? All JDBC compliant drivers must return true.
      Specified by:
      supportsMinimumSQLGrammar in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsMixedCaseIdentifiers

      public boolean supportsMixedCaseIdentifiers() throws SQLException
      Does the database support mixed case unquoted SQL identifiers?
      Specified by:
      supportsMixedCaseIdentifiers in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsMixedCaseQuotedIdentifiers

      public boolean supportsMixedCaseQuotedIdentifiers() throws SQLException
      Does the database support mixed case quoted SQL identifiers? A JDBC compliant driver will always return true.
      Specified by:
      supportsMixedCaseQuotedIdentifiers in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsMultipleOpenResults

      public boolean supportsMultipleOpenResults() throws SQLException
      Specified by:
      supportsMultipleOpenResults in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • supportsMultipleResultSets

      public boolean supportsMultipleResultSets() throws SQLException
      Are multiple ResultSets from a single execute supported?
      Specified by:
      supportsMultipleResultSets in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsMultipleTransactions

      public boolean supportsMultipleTransactions() throws SQLException
      Can we have multiple transactions open at once (on different connections)?
      Specified by:
      supportsMultipleTransactions in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsNamedParameters

      public boolean supportsNamedParameters() throws SQLException
      Specified by:
      supportsNamedParameters in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • supportsNonNullableColumns

      public boolean supportsNonNullableColumns() throws SQLException
      Can columns be defined as non-nullable? A JDBC compliant driver always returns true.
      Specified by:
      supportsNonNullableColumns in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsOpenCursorsAcrossCommit

      public boolean supportsOpenCursorsAcrossCommit() throws SQLException
      Can cursors remain open across commits?
      Specified by:
      supportsOpenCursorsAcrossCommit in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException - if a database access error occurs
      See Also:
      • invalid reference 
        Connection#disableAutoClose

    • supportsOpenCursorsAcrossRollback

      public boolean supportsOpenCursorsAcrossRollback() throws SQLException
      Can cursors remain open across rollbacks?
      Specified by:
      supportsOpenCursorsAcrossRollback in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException - if an error occurs
      See Also:
      • invalid reference 
        Connection#disableAutoClose

    • supportsOpenStatementsAcrossCommit

      public boolean supportsOpenStatementsAcrossCommit() throws SQLException
      Can statements remain open across commits?
      Specified by:
      supportsOpenStatementsAcrossCommit in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException - if an error occurs
      See Also:
      • invalid reference 
        Connection#disableAutoClose

    • supportsOpenStatementsAcrossRollback

      public boolean supportsOpenStatementsAcrossRollback() throws SQLException
      Can statements remain open across rollbacks?
      Specified by:
      supportsOpenStatementsAcrossRollback in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException - if an error occurs
      See Also:
      • invalid reference 
        Connection#disableAutoClose

    • supportsOrderByUnrelated

      public boolean supportsOrderByUnrelated() throws SQLException
      Can an "ORDER BY" clause use columns not in the SELECT?
      Specified by:
      supportsOrderByUnrelated in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsOuterJoins

      public boolean supportsOuterJoins() throws SQLException
      Is some form of outer join supported?
      Specified by:
      supportsOuterJoins in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsPositionedDelete

      public boolean supportsPositionedDelete() throws SQLException
      Is positioned DELETE supported?
      Specified by:
      supportsPositionedDelete in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsPositionedUpdate

      public boolean supportsPositionedUpdate() throws SQLException
      Is positioned UPDATE supported?
      Specified by:
      supportsPositionedUpdate in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsResultSetConcurrency

      public boolean supportsResultSetConcurrency(int type, int concurrency) throws SQLException
      JDBC 2.0 Does the database support the concurrency type in combination with the given result set type?
      Specified by:
      supportsResultSetConcurrency in interface DatabaseMetaData
      Parameters:
      type - defined in java.sql.ResultSet
      concurrency - type defined in java.sql.ResultSet
      Returns:
      true if so
      Throws:
      SQLException - if a database-access error occurs.
      See Also:

    • supportsResultSetHoldability

      public boolean supportsResultSetHoldability(int holdability) throws SQLException
      Specified by:
      supportsResultSetHoldability in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • supportsResultSetType

      public boolean supportsResultSetType(int type) throws SQLException
      JDBC 2.0 Does the database support the given result set type?
      Specified by:
      supportsResultSetType in interface DatabaseMetaData
      Parameters:
      type - defined in java.sql.ResultSet
      Returns:
      true if so
      Throws:
      SQLException - if a database-access error occurs.
      See Also:

    • supportsSavepoints

      public boolean supportsSavepoints() throws SQLException
      Specified by:
      supportsSavepoints in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • supportsSchemasInDataManipulation

      public boolean supportsSchemasInDataManipulation() throws SQLException
      Can a schema name be used in a data manipulation statement?
      Specified by:
      supportsSchemasInDataManipulation in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsSchemasInIndexDefinitions

      public boolean supportsSchemasInIndexDefinitions() throws SQLException
      Can a schema name be used in an index definition statement?
      Specified by:
      supportsSchemasInIndexDefinitions in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsSchemasInPrivilegeDefinitions

      public boolean supportsSchemasInPrivilegeDefinitions() throws SQLException
      Can a schema name be used in a privilege definition statement?
      Specified by:
      supportsSchemasInPrivilegeDefinitions in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsSchemasInProcedureCalls

      public boolean supportsSchemasInProcedureCalls() throws SQLException
      Can a schema name be used in a procedure call statement?
      Specified by:
      supportsSchemasInProcedureCalls in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsSchemasInTableDefinitions

      public boolean supportsSchemasInTableDefinitions() throws SQLException
      Can a schema name be used in a table definition statement?
      Specified by:
      supportsSchemasInTableDefinitions in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsSelectForUpdate

      public boolean supportsSelectForUpdate() throws SQLException
      Is SELECT for UPDATE supported?
      Specified by:
      supportsSelectForUpdate in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsStatementPooling

      public boolean supportsStatementPooling() throws SQLException
      Specified by:
      supportsStatementPooling in interface DatabaseMetaData
      Throws:
      SQLException
      See Also:

    • supportsStoredProcedures

      public boolean supportsStoredProcedures() throws SQLException
      Are stored procedure calls using the stored procedure escape syntax supported?
      Specified by:
      supportsStoredProcedures in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsSubqueriesInComparisons

      public boolean supportsSubqueriesInComparisons() throws SQLException
      Are subqueries in comparison expressions supported? A JDBC compliant driver always returns true.
      Specified by:
      supportsSubqueriesInComparisons in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsSubqueriesInExists

      public boolean supportsSubqueriesInExists() throws SQLException
      Are subqueries in exists expressions supported? A JDBC compliant driver always returns true.
      Specified by:
      supportsSubqueriesInExists in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsSubqueriesInIns

      public boolean supportsSubqueriesInIns() throws SQLException
      Are subqueries in "in" statements supported? A JDBC compliant driver always returns true.
      Specified by:
      supportsSubqueriesInIns in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsSubqueriesInQuantifieds

      public boolean supportsSubqueriesInQuantifieds() throws SQLException
      Are subqueries in quantified expressions supported? A JDBC compliant driver always returns true.
      Specified by:
      supportsSubqueriesInQuantifieds in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsTableCorrelationNames

      public boolean supportsTableCorrelationNames() throws SQLException
      Are table correlation names supported? A JDBC compliant driver always returns true.
      Specified by:
      supportsTableCorrelationNames in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsTransactionIsolationLevel

      public boolean supportsTransactionIsolationLevel(int level) throws SQLException
      Does the database support the given transaction isolation level?
      Specified by:
      supportsTransactionIsolationLevel in interface DatabaseMetaData
      Parameters:
      level - the values are defined in java.sql.Connection
      Returns:
      true if so
      Throws:
      SQLException - if a database access error occurs
      See Also:

    • supportsTransactions

      public boolean supportsTransactions() throws SQLException
      Are transactions supported? If not, commit is a noop and the isolation level is TRANSACTION_NONE.
      Specified by:
      supportsTransactions in interface DatabaseMetaData
      Returns:
      true if transactions are supported
      Throws:
      SQLException

    • supportsUnion

      public boolean supportsUnion() throws SQLException
      Is SQL UNION supported? A JDBC compliant driver always returns true.
      Specified by:
      supportsUnion in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • supportsUnionAll

      public boolean supportsUnionAll() throws SQLException
      Is SQL UNION ALL supported? A JDBC compliant driver always returns true.
      Specified by:
      supportsUnionAll in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • updatesAreDetected

      public boolean updatesAreDetected(int type) throws SQLException
      JDBC 2.0 Determine whether or not a visible row update can be detected by calling ResultSet.rowUpdated().
      Specified by:
      updatesAreDetected in interface DatabaseMetaData
      Parameters:
      type - set type, i.e. ResultSet.TYPE_XXX
      Returns:
      true if changes are detected by the resultset type
      Throws:
      SQLException - if a database-access error occurs.

    • usesLocalFilePerTable

      public boolean usesLocalFilePerTable() throws SQLException
      Does the database use a file for each table?
      Specified by:
      usesLocalFilePerTable in interface DatabaseMetaData
      Returns:
      true if the database uses a local file for each table
      Throws:
      SQLException

    • usesLocalFiles

      public boolean usesLocalFiles() throws SQLException
      Does the database store tables in a local file?
      Specified by:
      usesLocalFiles in interface DatabaseMetaData
      Returns:
      true if so
      Throws:
      SQLException

    • getClientInfoProperties

      public ResultSet getClientInfoProperties() throws SQLException
      Retrieves a list of the client info properties that the driver supports. The result set contains the following columns

      1. NAME String=> The name of the client info property
      2. MAX_LEN int=> The maximum length of the value for the property
      3. DEFAULT_VALUE String=> The default value of the property
      4. 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:
      getClientInfoProperties in interface DatabaseMetaData
      Returns:
      A ResultSet object; each row is a supported client info property

      Throws:
      SQLException - if a database access error occurs

      Since:
      1.6

    • 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.
      Specified by:
      getFunctionColumns in interface DatabaseMetaData
      Throws:
      SQLException
      Since:
      1.6
      See Also:

    • createFunctionColumnsFields

      protected Field[] createFunctionColumnsFields()

    • 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 by FUNCTION_CAT, FUNCTION_SCHEM, FUNCTION_NAME and SPECIFIC_ NAME.

      Each function description has the the following columns:

      1. FUNCTION_CAT String => function catalog (may be null)
      2. FUNCTION_SCHEM String => function schema (may be null)
      3. FUNCTION_NAME String => function name. This is the name used to invoke the function
      4. REMARKS String => explanatory comment on the function
      5. 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
      6. 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 the FUNCTION_NAME for example with overload functions

      A user may not have permission to execute any of the functions that are returned by getFunctions

      Specified by:
      getFunctions in interface DatabaseMetaData
      Parameters:
      catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means that the catalog name should not be used to narrow the search
      schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema; null means that the schema name should not be used to narrow the search
      functionNamePattern - 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:

    • providesQueryObjectGenerator

      public boolean providesQueryObjectGenerator() throws SQLException
      Throws:
      SQLException

    • getSchemas

      public ResultSet getSchemas(String catalog, String schemaPattern) throws SQLException
      Specified by:
      getSchemas in interface DatabaseMetaData
      Parameters:
      catalog -
      schemaPattern -
      Throws:
      SQLException

    • supportsStoredFunctionsUsingCallSyntax

      public boolean supportsStoredFunctionsUsingCallSyntax() throws SQLException
      Specified by:
      supportsStoredFunctionsUsingCallSyntax in interface DatabaseMetaData
      Throws:
      SQLException

    • prepareMetaDataSafeStatement

      protected PreparedStatement prepareMetaDataSafeStatement(String sql) throws SQLException
      Get a prepared statement to query information_schema tables.
      Returns:
      PreparedStatement
      Throws:
      SQLException

    • getPseudoColumns

      public ResultSet getPseudoColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) throws SQLException
      JDBC-4.1
      Specified by:
      getPseudoColumns in interface DatabaseMetaData
      Parameters:
      catalog -
      schemaPattern -
      tableNamePattern -
      columnNamePattern -
      Throws:
      SQLException

    • generatedKeyAlwaysReturned

      public boolean generatedKeyAlwaysReturned() throws SQLException
      Specified by:
      generatedKeyAlwaysReturned in interface DatabaseMetaData
      Throws:
      SQLException