net.sourceforge.jtds.jdbc

Class JtdsDatabaseMetaData

Implemented Interfaces:
java.sql.DatabaseMetaData

public class JtdsDatabaseMetaData
extends java.lang.Object
implements java.sql.DatabaseMetaData

jTDS implementation of the java.sql.DatabaseMetaData interface.

Implementation note:

This is basically the code from the original jTDS driver. Main changes relate to the need to support the new ResultSet implementation.

TODO: Many of the system limits need to be revised to more accurately reflect the target database constraints. In many cases limits are soft and determined by bytes per column for example. Probably more of these functions should be altered to return 0 but for now the original jTDS values are returned.

Version:
$Id: JtdsDatabaseMetaData.java,v 1.37 2007/07/08 17:28:23 bheineman Exp $
Authors:
Craig Spannring
The FreeTDS project
Alin Sinpalean created 17 March 2001

Field Summary

(package private) Boolean
caseSensitive
Boolean.TRUE if identifiers are case sensitive (the server was installed that way).
private ConnectionJDBC2
connection
private int
serverType
(package private) static int
sqlStateXOpen
(package private) int
sysnameLength
Length of a sysname object (table name, catalog name etc.) -- 128 for TDS 7.0, 30 for earlier versions.
private int
tdsVersion

Constructor Summary

JtdsDatabaseMetaData(ConnectionJDBC2 connection)

Method Summary

boolean
allProceduresAreCallable()
Can all the procedures returned by getProcedures be called by the current user?
boolean
allTablesAreSelectable()
Can all the tables returned by getTable be SELECTed by the current user?
private static CachedResultSet
createTypeInfoResultSet(JtdsResultSet rs, boolean useLOBs)
boolean
dataDefinitionCausesTransactionCommit()
Does a data definition statement within a transaction force the transaction to commit?
boolean
dataDefinitionIgnoredInTransactions()
Is a data definition statement within a transaction ignored?
boolean
deletesAreDetected(int type)
JDBC 2.0 Indicates whether or not a visible row delete can be detected by calling ResultSet.rowDeleted().
boolean
doesMaxRowSizeIncludeBlobs()
Did getMaxRowSize() include LONGVARCHAR and LONGVARBINARY blobs?
java.sql.ResultSet
getAttributes(String catalog, String schemaPattern, String typeNamePattern, String attributeNamePattern)
java.sql.ResultSet
getBestRowIdentifier(String catalog, String schema, String table, int scope, boolean nullable)
Get a description of a table's optimal set of columns that uniquely identifies a row.
String
getCatalogSeparator()
What's the separator between catalog and table name?
String
getCatalogTerm()
What's the database vendor's preferred term for "catalog"?
java.sql.ResultSet
getCatalogs()
Get the catalog names available in this database.
java.sql.ResultSet
getColumnPrivileges(String catalog, String schema, String table, String columnNamePattern)
Get a description of the access rights for a table's columns.
java.sql.ResultSet
getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern)
Get a description of table columns available in a catalog.
java.sql.Connection
getConnection()
JDBC 2.0 Retrieves the connection that produced this metadata object.
java.sql.ResultSet
getCrossReference(String primaryCatalog, String primarySchema, String primaryTable, String foreignCatalog, String foreignSchema, String foreignTable)
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).
int
getDatabaseMajorVersion()
Returns the database major version.
int
getDatabaseMinorVersion()
Returns the database minor version.
String
getDatabaseProductName()
Returns the name of this database product.
String
getDatabaseProductVersion()
Returns the version of this database product.
int
getDefaultTransactionIsolation()
Returns the database's default transaction isolation level.
int
getDriverMajorVersion()
Returns this JDBC driver's major version number.
int
getDriverMinorVersion()
Returns this JDBC driver's minor version number.
String
getDriverName()
Returns the name of this JDBC driver.
String
getDriverVersion()
Returns the version of this JDBC driver.
java.sql.ResultSet
getExportedKeys(String catalog, String schema, String table)
Get a description of the foreign key columns that reference a table's primary key columns (the foreign keys exported by a table).
String
getExtraNameCharacters()
Get all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, A-Z, 0-9 and _).
String
getIdentifierQuoteString()
Returns the string used to quote SQL identifiers.
java.sql.ResultSet
getImportedKeys(String catalog, String schema, String table)
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).
java.sql.ResultSet
getIndexInfo(String catalog, String schema, String table, boolean unique, boolean approximate)
Get a description of a table's indices and statistics.
int
getJDBCMajorVersion()
Returns the JDBC major version.
int
getJDBCMinorVersion()
Returns the JDBC minor version.
int
getMaxBinaryLiteralLength()
How many hex characters can you have in an inline binary literal?
int
getMaxCatalogNameLength()
What's the maximum length of a catalog name?
int
getMaxCharLiteralLength()
What's the max length for a character literal?
int
getMaxColumnNameLength()
What's the limit on column name length?
int
getMaxColumnsInGroupBy()
What's the maximum number of columns in a "GROUP BY" clause?
int
getMaxColumnsInIndex()
What's the maximum number of columns allowed in an index?
int
getMaxColumnsInOrderBy()
What's the maximum number of columns in an "ORDER BY" clause?
int
getMaxColumnsInSelect()
What's the maximum number of columns in a "SELECT" list?
int
getMaxColumnsInTable()
What's the maximum number of columns in a table?
int
getMaxConnections()
How many active connections can we have at a time to this database?
int
getMaxCursorNameLength()
What's the maximum cursor name length?
int
getMaxIndexLength()
What's the maximum length of an index (in bytes)?
int
getMaxProcedureNameLength()
What's the maximum length of a procedure name?
int
getMaxRowSize()
What's the maximum length of a single row?
int
getMaxSchemaNameLength()
What's the maximum length allowed for a schema name?
int
getMaxStatementLength()
What's the maximum length of a SQL statement?
int
getMaxStatements()
How many active statements can we have open at one time to this database?
int
getMaxTableNameLength()
What's the maximum length of a table name?
int
getMaxTablesInSelect()
What's the maximum number of tables in a SELECT?
int
getMaxUserNameLength()
What's the maximum length of a user name?
String
getNumericFunctions()
Get a comma separated list of math functions.
java.sql.ResultSet
getPrimaryKeys(String catalog, String schema, String table)
Get a description of a table's primary key columns.
java.sql.ResultSet
getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern)
Get a description of a catalog's stored procedure parameters and result columns.
String
getProcedureTerm()
What's the database vendor's preferred term for "procedure"?
java.sql.ResultSet
getProcedures(String catalog, String schemaPattern, String procedureNamePattern)
Get a description of stored procedures available in a catalog.
int
getResultSetHoldability()
String
getSQLKeywords()
Get a comma separated list of all a database's SQL keywords that are NOT also SQL92 keywords.
int
getSQLStateType()
String
getSchemaTerm()
What's the database vendor's preferred term for "schema"?
java.sql.ResultSet
getSchemas()
Get the schema names available in this database.
String
getSearchStringEscape()
This is the string that can be used to escape '_' or '%' in the string pattern style catalog search parameters.
private static Collection
getSortedTypes(ResultSet rs, boolean useLOBs)
String
getStringFunctions()
Get a comma separated list of string functions.
java.sql.ResultSet
getSuperTables(String catalog, String schemaPattern, String tableNamePattern)
java.sql.ResultSet
getSuperTypes(String catalog, String schemaPattern, String typeNamePattern)
String
getSystemFunctions()
Get a comma separated list of system functions.
java.sql.ResultSet
getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern)
Get a description of the access rights for each table available in a catalog.
java.sql.ResultSet
getTableTypes()
Get the table types available in this database.
java.sql.ResultSet
getTables(String catalog, String schemaPattern, String tableNamePattern, types[] )
Get a description of tables available in a catalog.
String
getTimeDateFunctions()
Get a comma separated list of time and date functions.
java.sql.ResultSet
getTypeInfo()
Get a description of all the standard SQL types supported by this database.
java.sql.ResultSet
getUDTs(String catalog, String schemaPattern, String typeNamePattern, int[] types)
JDBC 2.0 Gets a description of the user-defined types defined in a particular schema.
String
getURL()
What's the URL for this database?
String
getUserName()
What's our user name as known to the database?
java.sql.ResultSet
getVersionColumns(String catalog, String schema, String table)
Get a description of a table's columns that are automatically updated when any value in a row is updated.
boolean
insertsAreDetected(int type)
JDBC 2.0 Indicates whether or not a visible row insert can be detected by calling ResultSet.rowInserted().
boolean
isCatalogAtStart()
Retrieves whether a catalog appears at the start of a fully qualified table name.
boolean
isReadOnly()
Is the database in read-only mode?
boolean
locatorsUpdateCopy()
Returns true if updates are made to a copy of the LOB; returns false if LOB updates are made directly to the database.
boolean
nullPlusNonNullIsNull()
Retrieves whether this database supports concatenations between NULL and non-NULL values being NULL.
boolean
nullsAreSortedAtEnd()
Are NULL values sorted at the end regardless of sort order?
boolean
nullsAreSortedAtStart()
Are NULL values sorted at the start regardless of sort order?
boolean
nullsAreSortedHigh()
Are NULL values sorted high?
boolean
nullsAreSortedLow()
Are NULL values sorted low?
boolean
othersDeletesAreVisible(int type)
JDBC 2.0 Indicates whether deletes made by others are visible.
boolean
othersInsertsAreVisible(int type)
JDBC 2.0 Indicates whether inserts made by others are visible.
boolean
othersUpdatesAreVisible(int type)
JDBC 2.0 Indicates whether updates made by others are visible.
boolean
ownDeletesAreVisible(int type)
JDBC 2.0 Indicates whether a result set's own deletes are visible.
boolean
ownInsertsAreVisible(int type)
JDBC 2.0 Indicates whether a result set's own inserts are visible.
boolean
ownUpdatesAreVisible(int type)
JDBC 2.0 Indicates whether a result set's own updates are visible.
private static String
processEscapes(String pattern)
Format the supplied search pattern to transform the escape \x into [x].
private void
setCaseSensitiveFlag()
boolean
storesLowerCaseIdentifiers()
Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in lower case?
boolean
storesLowerCaseQuotedIdentifiers()
Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in lower case?
boolean
storesMixedCaseIdentifiers()
Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in mixed case?
boolean
storesMixedCaseQuotedIdentifiers()
Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in mixed case?
boolean
storesUpperCaseIdentifiers()
Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in upper case?
boolean
storesUpperCaseQuotedIdentifiers()
Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in upper case?
boolean
supportsANSI92EntryLevelSQL()
Retrieves whether this database supports the ANSI92 entry level SQL grammar.
boolean
supportsANSI92FullSQL()
Is the ANSI92 full SQL grammar supported?
boolean
supportsANSI92IntermediateSQL()
Is the ANSI92 intermediate SQL grammar supported?
boolean
supportsAlterTableWithAddColumn()
Is "ALTER TABLE" with add column supported?
boolean
supportsAlterTableWithDropColumn()
Is "ALTER TABLE" with drop column supported?
boolean
supportsBatchUpdates()
JDBC 2.0 Indicates whether the driver supports batch updates.
boolean
supportsCatalogsInDataManipulation()
Can a catalog name be used in a data manipulation statement?
boolean
supportsCatalogsInIndexDefinitions()
Can a catalog name be used in an index definition statement?
boolean
supportsCatalogsInPrivilegeDefinitions()
Can a catalog name be used in a privilege definition statement?
boolean
supportsCatalogsInProcedureCalls()
Can a catalog name be used in a procedure call statement?
boolean
supportsCatalogsInTableDefinitions()
Can a catalog name be used in a table definition statement?
boolean
supportsColumnAliasing()
Retrieves whether this database supports column aliasing.
boolean
supportsConvert()
Is the CONVERT function between SQL types supported?
boolean
supportsConvert(int fromType, int toType)
Is CONVERT between the given SQL types supported?
boolean
supportsCoreSQLGrammar()
Is the ODBC Core SQL grammar supported?
boolean
supportsCorrelatedSubqueries()
Retrieves whether this database supports correlated subqueries.
boolean
supportsDataDefinitionAndDataManipulationTransactions()
Are both data definition and data manipulation statements within a transaction supported?
boolean
supportsDataManipulationTransactionsOnly()
Are only data manipulation statements within a transaction supported?
boolean
supportsDifferentTableCorrelationNames()
If table correlation names are supported, are they restricted to be different from the names of the tables?
boolean
supportsExpressionsInOrderBy()
Are expressions in "ORDER BY" lists supported?
boolean
supportsExtendedSQLGrammar()
Is the ODBC Extended SQL grammar supported?
boolean
supportsFullOuterJoins()
Are full nested outer joins supported?
boolean
supportsGetGeneratedKeys()
Returns true if getting auto-generated keys is supported after a statment is executed; returns false otherwise
boolean
supportsGroupBy()
Is some form of "GROUP BY" clause supported?
boolean
supportsGroupByBeyondSelect()
Can a "GROUP BY" clause add columns not in the SELECT provided it specifies all the columns in the SELECT?
boolean
supportsGroupByUnrelated()
Can a "GROUP BY" clause use columns not in the SELECT?
boolean
supportsIntegrityEnhancementFacility()
Is the SQL Integrity Enhancement Facility supported?
boolean
supportsLikeEscapeClause()
Retrieves whether this database supports specifying a LIKE escape clause.
boolean
supportsLimitedOuterJoins()
Retrieves whether this database provides limited support for outer joins.
boolean
supportsMinimumSQLGrammar()
Retrieves whether this database supports the ODBC Minimum SQL grammar.
boolean
supportsMixedCaseIdentifiers()
Retrieves whether this database treats mixed case unquoted SQL identifiers as case sensitive and as a result stores them in mixed case.
boolean
supportsMixedCaseQuotedIdentifiers()
Retrieves whether this database treats mixed case quoted SQL identifiers as case sensitive and as a result stores them in mixed case.
boolean
supportsMultipleOpenResults()
Returns true if Callable statements can return multiple result sets; returns false if they can only return one result set.
boolean
supportsMultipleResultSets()
Are multiple ResultSets from a single execute supported?
boolean
supportsMultipleTransactions()
Can we have multiple transactions open at once (on different connections)?
boolean
supportsNamedParameters()
Returns true if the database supports named parameters; returns false if the database does not support named parameters.
boolean
supportsNonNullableColumns()
Retrieves whether columns in this database may be defined as non-nullable.
boolean
supportsOpenCursorsAcrossCommit()
Can cursors remain open across commits?
boolean
supportsOpenCursorsAcrossRollback()
Can cursors remain open across rollbacks?
boolean
supportsOpenStatementsAcrossCommit()
Can statements remain open across commits?
boolean
supportsOpenStatementsAcrossRollback()
Can statements remain open across rollbacks?
boolean
supportsOrderByUnrelated()
Can an "ORDER BY" clause use columns not in the SELECT?
boolean
supportsOuterJoins()
Is some form of outer join supported?
boolean
supportsPositionedDelete()
Is positioned DELETE supported?
boolean
supportsPositionedUpdate()
Is positioned UPDATE supported?
boolean
supportsResultSetConcurrency(int type, int concurrency)
Does the database support the concurrency type in combination with the given result set type?

Supported concurrencies for SQL Server:

JDBC concurrencySQL Server concurrencyRow locksDescription
CONCUR_READ_ONLYRead onlyNoRead-only.
CONCUR_UPDATABLEOptimistic concurrency, updatableNoRow integrity checked with timestamp comparison or, when not available, value comparison (except text and image fields).
CONCUR_UPDATABLE+1Pessimistic concurrency, updatableYesRow integrity is ensured by locking rows.
CONCUR_UPDATABLE+2Optimistic concurrency, updatableNoRow integrity checked with value comparison (except text and image fields).
boolean
supportsResultSetHoldability(int param)
boolean
supportsResultSetType(int type)
Does the database support the given result set type?

Supported types for SQL Server:

JDBC typeSQL Server cursor typeServer loadDescription
TYPE_FORWARD_ONLYForward-only, dynamic (fast forward-only, static with useCursors=true)LightFast, will read all data (less fast, doesn't read all data with useCursors=true).
boolean
supportsSavepoints()
Returns true if savepoints are supported; returns false otherwise
boolean
supportsSchemasInDataManipulation()
Can a schema name be used in a data manipulation statement?
boolean
supportsSchemasInIndexDefinitions()
Can a schema name be used in an index definition statement?
boolean
supportsSchemasInPrivilegeDefinitions()
Can a schema name be used in a privilege definition statement?
boolean
supportsSchemasInProcedureCalls()
Can a schema name be used in a procedure call statement?
boolean
supportsSchemasInTableDefinitions()
Can a schema name be used in a table definition statement?
boolean
supportsSelectForUpdate()
Is SELECT for UPDATE supported?
boolean
supportsStatementPooling()
Returns true if the database supports statement pooling; returns false otherwise.
boolean
supportsStoredProcedures()
Are stored procedure calls using the stored procedure escape syntax supported?
boolean
supportsSubqueriesInComparisons()
Retrieves whether this database supports subqueries in comparison expressions.
boolean
supportsSubqueriesInExists()
Retrieves whether this database supports subqueries in EXISTS expressions.
boolean
supportsSubqueriesInIns()
Retrieves whether this database supports subqueries in IN statements.
boolean
supportsSubqueriesInQuantifieds()
Retrieves whether this database supports subqueries in quantified expressions.
boolean
supportsTableCorrelationNames()
Retrieves whether this database supports table correlation names.
boolean
supportsTransactionIsolationLevel(int level)
Does the database support the given transaction isolation level?
boolean
supportsTransactions()
Retrieves whether this database supports transactions.
boolean
supportsUnion()
Is SQL UNION supported?
boolean
supportsUnionAll()
Is SQL UNION ALL supported?
private String
syscall(String catalog, String call)
Format the supplied procedure call as a valid JDBC call escape.
boolean
updatesAreDetected(int type)
JDBC 2.0 Indicates whether or not a visible row update can be detected by calling the method ResultSet.rowUpdated .
private static void
upperCaseColumnNames(JtdsResultSet results)
Uppercase all column names.
boolean
usesLocalFilePerTable()
Does the database use a file for each table?
boolean
usesLocalFiles()
Does the database store tables in a local file?

Field Details

caseSensitive

(package private)  Boolean caseSensitive
Boolean.TRUE if identifiers are case sensitive (the server was installed that way). Initially null, set the first time any of the methods that check this are called.

connection

private final ConnectionJDBC2 connection

serverType

private final int serverType

sqlStateXOpen

(package private) static final int sqlStateXOpen
Field Value:
1

sysnameLength

(package private)  int sysnameLength
Length of a sysname object (table name, catalog name etc.) -- 128 for TDS 7.0, 30 for earlier versions.

tdsVersion

private final int tdsVersion

Constructor Details

JtdsDatabaseMetaData

public JtdsDatabaseMetaData(ConnectionJDBC2 connection)

Method Details

allProceduresAreCallable

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

allTablesAreSelectable

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

createTypeInfoResultSet

private static CachedResultSet createTypeInfoResultSet(JtdsResultSet rs,
                                                       boolean useLOBs)
            throws SQLException

dataDefinitionCausesTransactionCommit

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

dataDefinitionIgnoredInTransactions

public boolean dataDefinitionIgnoredInTransactions()
            throws SQLException
Is a data definition statement within a transaction ignored?
Returns:
true if so

deletesAreDetected

public boolean deletesAreDetected(int type)
            throws SQLException
JDBC 2.0 Indicates 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.
Parameters:
type - ResultSet type
Returns:
true if changes are detected by the result set type

doesMaxRowSizeIncludeBlobs

public boolean doesMaxRowSizeIncludeBlobs()
            throws SQLException
Did getMaxRowSize() include LONGVARCHAR and LONGVARBINARY blobs?
Returns:
true if so

getAttributes

public java.sql.ResultSet getAttributes(String catalog,
                                        String schemaPattern,
                                        String typeNamePattern,
                                        String attributeNamePattern)
            throws SQLException

getBestRowIdentifier

public java.sql.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
    • COLUMN_NAME String =>column name
    • DATA_TYPE short =>SQL data type from java.sql.Types
    • TYPE_NAME String =>Data source dependent type name
    • COLUMN_SIZE int =>precision
    • BUFFER_LENGTH int =>not used
    • DECIMAL_DIGITS short =>scale
    • 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
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
      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

      getCatalogSeparator

      public String getCatalogSeparator()
                  throws SQLException
      What's the separator between catalog and table name?
      Returns:
      the separator string

      getCatalogTerm

      public String getCatalogTerm()
                  throws SQLException
      What's the database vendor's preferred term for "catalog"?
      Returns:
      the vendor term

      getCatalogs

      public java.sql.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
      Returns:
      ResultSet - each row has a single String column that is a catalog name

      getColumnPrivileges

      public java.sql.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
      Parameters:
      catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
      schema - a schema name; "" retrieves those without a schema schema
      table - a table name
      columnNamePattern - a column name pattern
      Returns:
      ResultSet - each row is a column privilege description

      getColumns

      public java.sql.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
        • REMARKS String =>comment describing column (may be null)
        • COLUMN_DEF String =>default value (may be null)
        • 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 =>"NO" means column definitely does not allow NULL values; "YES" means the column might allow NULL values. An empty string means nobody knows.
        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
        tableNamePattern - a table name pattern
        columnNamePattern - a column name pattern
        Returns:
        ResultSet - each row is a column description

        getConnection

        public java.sql.Connection getConnection()
                    throws SQLException
        JDBC 2.0 Retrieves the connection that produced this metadata object.
        Returns:
        the connection that produced this metadata object

        getCrossReference

        public java.sql.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:
          • 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 NULL if 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 be null)
            • PK_NAME String =>primary key name (may be null)
            • 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
              Parameters:
              primaryCatalog - a catalog name; "" retrieves those without a null means drop catalog name from the selection criteria
              primarySchema - a schema name pattern; "" retrieves those without a schema
              primaryTable - the table name that exports the key
              foreignCatalog - a catalog name; "" retrieves those without a null means drop catalog name from the selection criteria
              foreignSchema - a schema name pattern; "" retrieves those without a schema
              foreignTable - the table name that imports the key
              Returns:
              ResultSet - each row is a foreign key column description

              getDatabaseMajorVersion

              public int getDatabaseMajorVersion()
                          throws SQLException
              Returns the database major version.

              getDatabaseMinorVersion

              public int getDatabaseMinorVersion()
                          throws SQLException
              Returns the database minor version.

              getDatabaseProductName

              public String getDatabaseProductName()
                          throws SQLException
              Returns the name of this database product.
              Returns:
              database product name

              getDatabaseProductVersion

              public String getDatabaseProductVersion()
                          throws SQLException
              Returns the version of this database product.
              Returns:
              database version

              getDefaultTransactionIsolation

              public int getDefaultTransactionIsolation()
                          throws SQLException
              Returns the database's default transaction isolation level. The values are defined in java.sql.Connection.
              Returns:
              the default isolation level
              See Also:
              Connection

              getDriverMajorVersion

              public int getDriverMajorVersion()
              Returns this JDBC driver's major version number.
              Returns:
              JDBC driver major version

              getDriverMinorVersion

              public int getDriverMinorVersion()
              Returns this JDBC driver's minor version number.
              Returns:
              JDBC driver minor version number

              getDriverName

              public String getDriverName()
                          throws SQLException
              Returns the name of this JDBC driver.
              Returns:
              JDBC driver name

              getDriverVersion

              public String getDriverVersion()
                          throws SQLException
              Returns the version of this JDBC driver.
              Returns:
              JDBC driver version

              getExportedKeys

              public java.sql.ResultSet getExportedKeys(String catalog,
                                                        String schema,
                                                        String table)
                          throws SQLException
              Get a description of the 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:
                • 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 NULL if 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 be null)
                  • PK_NAME String =>primary key name (may be null)
                  • 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
                    Parameters:
                    catalog - a catalog name; "" retrieves those without a null means drop catalog name from the selection criteria
                    schema - a schema name; "" retrieves those without a schema
                    table - a table name
                    Returns:
                    ResultSet - each row is a foreign key column description

                    getExtraNameCharacters

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

                    getIdentifierQuoteString

                    public String getIdentifierQuoteString()
                                throws SQLException
                    Returns 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.
                    Returns:
                    the quoting string

                    getImportedKeys

                    public java.sql.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:
                      • 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 NULL if 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 be null)
                        • PK_NAME String =>primary key name (may be null)
                        • 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
                          Parameters:
                          catalog - a catalog name; "" retrieves those without a null means drop catalog name from the selection criteria
                          schema - a schema name; "" retrieves those without a schema
                          table - a table name
                          Returns:
                          ResultSet - each row is a primary key column description

                          getIndexInfo

                          public java.sql.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
                            • ORDINAL_POSITION short =>column sequence number within index; zero when TYPE is tableIndexStatistic
                            • COLUMN_NAME String =>column name; null when TYPE is tableIndexStatistic
                            • 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
                            • CARDINALITY int =>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 int =>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 be null)
                            Parameters:
                            catalog - a catalog name; "" retrieves those without a null means drop catalog name from the selection criteria
                            schema - a schema name; "" 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

                            getJDBCMajorVersion

                            public int getJDBCMajorVersion()
                                        throws SQLException
                            Returns the JDBC major version.

                            getJDBCMinorVersion

                            public int getJDBCMinorVersion()
                                        throws SQLException
                            Returns the JDBC minor version.

                            getMaxBinaryLiteralLength

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

                            getMaxCatalogNameLength

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

                            getMaxCharLiteralLength

                            public int getMaxCharLiteralLength()
                                        throws SQLException
                            What's the max length for a character literal?
                            Returns:
                            max literal length

                            getMaxColumnNameLength

                            public int getMaxColumnNameLength()
                                        throws SQLException
                            What's the limit on column name length?
                            Returns:
                            max literal length

                            getMaxColumnsInGroupBy

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

                            getMaxColumnsInIndex

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

                            getMaxColumnsInOrderBy

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

                            getMaxColumnsInSelect

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

                            getMaxColumnsInTable

                            public int getMaxColumnsInTable()
                                        throws SQLException
                            What's the maximum number of columns in a table?
                            Returns:
                            max columns

                            getMaxConnections

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

                            getMaxCursorNameLength

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

                            getMaxIndexLength

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

                            getMaxProcedureNameLength

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

                            getMaxRowSize

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

                            getMaxSchemaNameLength

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

                            getMaxStatementLength

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

                            getMaxStatements

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

                            getMaxTableNameLength

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

                            getMaxTablesInSelect

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

                            getMaxUserNameLength

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

                            getNumericFunctions

                            public String getNumericFunctions()
                                        throws SQLException
                            Get a comma separated list of math functions.
                            Returns:
                            the list

                            getPrimaryKeys

                            public java.sql.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 primary key 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)
                            Parameters:
                            catalog - a catalog name; "" retrieves those without a null means drop catalog name from the selection criteria
                            schema - a schema name; "" retrieves those without a schema
                            table - a table name
                            Returns:
                            ResultSet - each row is a primary key column description

                            getProcedureColumns

                            public java.sql.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
                              • DATA_TYPE short =>SQL type from java.sql.Types
                              • TYPE_NAME String =>SQL type name
                              • PRECISION int =>precision
                              • LENGTH int =>length in bytes of data
                              • SCALE short =>scale
                              • 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

                                Note: Some databases may not return the column descriptions for a procedure. Additional columns beyond REMARKS can be defined by the database.

                                Parameters:
                                catalog - a catalog name; "" retrieves those without a null means drop catalog name from the selection criteria
                                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

                                getProcedureTerm

                                public String getProcedureTerm()
                                            throws SQLException
                                What's the database vendor's preferred term for "procedure"?
                                Returns:
                                the vendor term

                                getProcedures

                                public java.sql.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
                                  Parameters:
                                  catalog - a catalog name; "" retrieves those without a null means drop catalog name from the selection criteria
                                  schemaPattern - a schema name pattern; "" retrieves those without a schema
                                  procedureNamePattern - a procedure name pattern
                                  Returns:
                                  ResultSet - each row is a procedure description

                                  getResultSetHoldability

                                  public int getResultSetHoldability()
                                              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 keywords.
                                  Returns:
                                  the list

                                  getSQLStateType

                                  public int getSQLStateType()
                                              throws SQLException

                                  getSchemaTerm

                                  public String getSchemaTerm()
                                              throws SQLException
                                  What's the database vendor's preferred term for "schema"?
                                  Returns:
                                  the vendor term

                                  getSchemas

                                  public java.sql.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
                                  2. TABLE_CATALOG String => catalog name (may be null, JDBC 3.0)
                                  Returns:
                                  a ResultSet object in which each row is a schema decription

                                  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.

                                  Returns:
                                  the string used to escape wildcard characters

                                  getSortedTypes

                                  private static Collection getSortedTypes(ResultSet rs,
                                                                           boolean useLOBs)
                                              throws SQLException

                                  getStringFunctions

                                  public String getStringFunctions()
                                              throws SQLException
                                  Get a comma separated list of string functions.
                                  Returns:
                                  the list

                                  getSuperTables

                                  public java.sql.ResultSet getSuperTables(String catalog,
                                                                           String schemaPattern,
                                                                           String tableNamePattern)
                                              throws SQLException

                                  getSuperTypes

                                  public java.sql.ResultSet getSuperTypes(String catalog,
                                                                          String schemaPattern,
                                                                          String typeNamePattern)
                                              throws SQLException

                                  getSystemFunctions

                                  public String getSystemFunctions()
                                              throws SQLException
                                  Get a comma separated list of system functions.
                                  Returns:
                                  the list

                                  getTablePrivileges

                                  public java.sql.ResultSet getTablePrivileges(String catalog,
                                                                               String schemaPattern,
                                                                               String tableNamePattern)
                                              throws SQLException
                                  Get 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 priviledge 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_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. GRANTOR =>grantor of access (may be null)
                                  5. GRANTEE String =>grantee of access
                                  6. PRIVILEGE String =>name of access (SELECT, INSERT, UPDATE, REFRENCES, ...)
                                  7. IS_GRANTABLE String =>"YES" if grantee is permitted to grant to others; "NO" if not; null if unknown
                                  Parameters:
                                  catalog - a catalog name; "" retrieves those without a null means drop catalog name from the selection criteria
                                  schemaPattern - a schema name pattern; "" retrieves those without a schema
                                  tableNamePattern - a table name pattern
                                  Returns:
                                  ResultSet - each row is a table privilege description

                                  getTableTypes

                                  public java.sql.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".
                                  Returns:
                                  ResultSet - each row has a single String column that is a table type

                                  getTables

                                  public java.sql.ResultSet getTables(String catalog,
                                                                      String schemaPattern,
                                                                      String tableNamePattern,
                                                                      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
                                  6. TYPE_CAT String => the types catalog (may be null)
                                  7. TYPE_SCHEM String => the types schema (may be null)
                                  8. TYPE_NAME String => type name (may be null)
                                  9. SELF_REFERENCING_COL_NAME String => name of the designated "identifier" column of a typed table (may be null)
                                  10. REF_GENERATION String => specifies how values in SELF_REFERENCING_COL_NAME are created. Values are "SYSTEM", "USER", "DERIVED". (may be null)

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

                                  Parameters:
                                  catalog - a catalog name; "" retrieves those without a null means drop catalog name from the selection criteria
                                  schemaPattern - a schema name pattern; "" retrieves those without a schema
                                  tableNamePattern - a table name pattern
                                  Returns:
                                  ResultSet - each row is a table description

                                  getTimeDateFunctions

                                  public String getTimeDateFunctions()
                                              throws SQLException
                                  Get a comma separated list of time and date functions.
                                  Returns:
                                  the list

                                  getTypeInfo

                                  public java.sql.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
                                    • 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 be null)
                                      • 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
                                      Returns:
                                      ResultSet - each row is a SQL type description

                                      getUDTs

                                      public java.sql.ResultSet getUDTs(String catalog,
                                                                        String schemaPattern,
                                                                        String typeNamePattern,
                                                                        int[] types)
                                                  throws SQLException
                                      JDBC 2.0 Gets 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, an empty result set is returned.

                                      Parameters:
                                      catalog - a catalog name; "" retrieves those without a 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

                                      getURL

                                      public String getURL()
                                                  throws SQLException
                                      What's the URL for this database?
                                      Returns:
                                      the URL or null if it can't be generated

                                      getUserName

                                      public String getUserName()
                                                  throws SQLException
                                      What's our user name as known to the database?
                                      Returns:
                                      our database user name

                                      getVersionColumns

                                      public java.sql.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
                                        Parameters:
                                        catalog - a catalog name; "" retrieves those without a null means drop catalog name from the selection criteria
                                        schema - a schema name; "" retrieves those without a schema
                                        table - a table name
                                        Returns:
                                        ResultSet - each row is a column description

                                        insertsAreDetected

                                        public boolean insertsAreDetected(int type)
                                                    throws SQLException
                                        JDBC 2.0 Indicates whether or not a visible row insert can be detected by calling ResultSet.rowInserted().
                                        Parameters:
                                        type - ResultSet type
                                        Returns:
                                        true if changes are detected by the result set type

                                        isCatalogAtStart

                                        public boolean isCatalogAtStart()
                                                    throws SQLException
                                        Retrieves whether a catalog appears at the start of a fully qualified table name. If not, the catalog appears at the end.
                                        Returns:
                                        true if it appears at the start

                                        isReadOnly

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

                                        locatorsUpdateCopy

                                        public boolean locatorsUpdateCopy()
                                                    throws SQLException
                                        Returns true if updates are made to a copy of the LOB; returns false if LOB updates are made directly to the database.

                                        NOTE: Since SQL Server / Sybase do not support LOB locators as Oracle does (AFAIK); this method always returns true.


                                        nullPlusNonNullIsNull

                                        public boolean nullPlusNonNullIsNull()
                                                    throws SQLException
                                        Retrieves whether this database supports concatenations between NULL and non-NULL values being NULL.
                                        Returns:
                                        true if so

                                        nullsAreSortedAtEnd

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

                                        nullsAreSortedAtStart

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

                                        nullsAreSortedHigh

                                        public boolean nullsAreSortedHigh()
                                                    throws SQLException
                                        Are NULL values sorted high?
                                        Returns:
                                        true if so

                                        nullsAreSortedLow

                                        public boolean nullsAreSortedLow()
                                                    throws SQLException
                                        Are NULL values sorted low?
                                        Returns:
                                        true if so

                                        othersDeletesAreVisible

                                        public boolean othersDeletesAreVisible(int type)
                                                    throws SQLException
                                        JDBC 2.0 Indicates whether deletes made by others are visible.
                                        Parameters:
                                        type - ResultSet type
                                        Returns:
                                        true if deletes made by others are visible for the result set type; false otherwise

                                        othersInsertsAreVisible

                                        public boolean othersInsertsAreVisible(int type)
                                                    throws SQLException
                                        JDBC 2.0 Indicates whether inserts made by others are visible.
                                        Parameters:
                                        type - ResultSet type
                                        Returns:
                                        true if inserts made by others are visible for the result set type; false otherwise

                                        othersUpdatesAreVisible

                                        public boolean othersUpdatesAreVisible(int type)
                                                    throws SQLException
                                        JDBC 2.0 Indicates whether updates made by others are visible.
                                        Parameters:
                                        type - ResultSet type
                                        Returns:
                                        true if updates made by others are visible for the result set type; false otherwise

                                        ownDeletesAreVisible

                                        public boolean ownDeletesAreVisible(int type)
                                                    throws SQLException
                                        JDBC 2.0 Indicates whether a result set's own deletes are visible.
                                        Parameters:
                                        type - ResultSet type
                                        Returns:
                                        true if deletes are visible for the result set type; false otherwise

                                        ownInsertsAreVisible

                                        public boolean ownInsertsAreVisible(int type)
                                                    throws SQLException
                                        JDBC 2.0 Indicates whether a result set's own inserts are visible.
                                        Parameters:
                                        type - ResultSet type
                                        Returns:
                                        true if inserts are visible for the result set type; false otherwise

                                        ownUpdatesAreVisible

                                        public boolean ownUpdatesAreVisible(int type)
                                                    throws SQLException
                                        JDBC 2.0 Indicates whether a result set's own updates are visible.
                                        Parameters:
                                        type - ResultSet type
                                        Returns:
                                        true if updates are visible for the result set type; false otherwise

                                        processEscapes

                                        private static String processEscapes(String pattern)
                                        Format the supplied search pattern to transform the escape \x into [x].
                                        Parameters:
                                        pattern - the pattern to tranform
                                        Returns:
                                        the transformed pattern as a String

                                        setCaseSensitiveFlag

                                        private void setCaseSensitiveFlag()
                                                    throws SQLException

                                        storesLowerCaseIdentifiers

                                        public boolean storesLowerCaseIdentifiers()
                                                    throws SQLException
                                        Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in lower case?
                                        Returns:
                                        true if so

                                        storesLowerCaseQuotedIdentifiers

                                        public boolean storesLowerCaseQuotedIdentifiers()
                                                    throws SQLException
                                        Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in lower case?
                                        Returns:
                                        true if so

                                        storesMixedCaseIdentifiers

                                        public boolean storesMixedCaseIdentifiers()
                                                    throws SQLException
                                        Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in mixed case?
                                        Returns:
                                        true if so

                                        storesMixedCaseQuotedIdentifiers

                                        public boolean storesMixedCaseQuotedIdentifiers()
                                                    throws SQLException
                                        Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in mixed case?
                                        Returns:
                                        true if so

                                        storesUpperCaseIdentifiers

                                        public boolean storesUpperCaseIdentifiers()
                                                    throws SQLException
                                        Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in upper case?
                                        Returns:
                                        true if so

                                        storesUpperCaseQuotedIdentifiers

                                        public boolean storesUpperCaseQuotedIdentifiers()
                                                    throws SQLException
                                        Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in upper case?
                                        Returns:
                                        true if so

                                        supportsANSI92EntryLevelSQL

                                        public boolean supportsANSI92EntryLevelSQL()
                                                    throws SQLException
                                        Retrieves whether this database supports the ANSI92 entry level SQL grammar.
                                        Returns:
                                        true if so

                                        supportsANSI92FullSQL

                                        public boolean supportsANSI92FullSQL()
                                                    throws SQLException
                                        Is the ANSI92 full SQL grammar supported?
                                        Returns:
                                        true if so

                                        supportsANSI92IntermediateSQL

                                        public boolean supportsANSI92IntermediateSQL()
                                                    throws SQLException
                                        Is the ANSI92 intermediate SQL grammar supported?
                                        Returns:
                                        true if so

                                        supportsAlterTableWithAddColumn

                                        public boolean supportsAlterTableWithAddColumn()
                                                    throws SQLException
                                        Is "ALTER TABLE" with add column supported?
                                        Returns:
                                        true if so

                                        supportsAlterTableWithDropColumn

                                        public boolean supportsAlterTableWithDropColumn()
                                                    throws SQLException
                                        Is "ALTER TABLE" with drop column supported?
                                        Returns:
                                        true if so

                                        supportsBatchUpdates

                                        public boolean supportsBatchUpdates()
                                                    throws SQLException
                                        JDBC 2.0 Indicates whether the driver supports batch updates.
                                        Returns:
                                        true if the driver supports batch updates; false otherwise

                                        supportsCatalogsInDataManipulation

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

                                        supportsCatalogsInIndexDefinitions

                                        public boolean supportsCatalogsInIndexDefinitions()
                                                    throws SQLException
                                        Can a catalog name be used in an index definition statement?
                                        Returns:
                                        true if so

                                        supportsCatalogsInPrivilegeDefinitions

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

                                        supportsCatalogsInProcedureCalls

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

                                        supportsCatalogsInTableDefinitions

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

                                        supportsColumnAliasing

                                        public boolean supportsColumnAliasing()
                                                    throws SQLException
                                        Retrieves whether this database supports column aliasing.

                                        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.

                                        Returns:
                                        true if so

                                        supportsConvert

                                        public boolean supportsConvert()
                                                    throws SQLException
                                        Is the CONVERT function between SQL types supported?
                                        Returns:
                                        true if so

                                        supportsConvert

                                        public boolean supportsConvert(int fromType,
                                                                       int toType)
                                                    throws SQLException
                                        Is CONVERT between the given SQL types supported?
                                        Parameters:
                                        fromType - the type to convert from
                                        toType - the type to convert to
                                        Returns:
                                        true if so

                                        supportsCoreSQLGrammar

                                        public boolean supportsCoreSQLGrammar()
                                                    throws SQLException
                                        Is the ODBC Core SQL grammar supported?
                                        Returns:
                                        true if so

                                        supportsCorrelatedSubqueries

                                        public boolean supportsCorrelatedSubqueries()
                                                    throws SQLException
                                        Retrieves whether this database supports correlated subqueries.
                                        Returns:
                                        true if so

                                        supportsDataDefinitionAndDataManipulationTransactions

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

                                        supportsDataManipulationTransactionsOnly

                                        public boolean supportsDataManipulationTransactionsOnly()
                                                    throws SQLException
                                        Are only data manipulation statements within a transaction supported?
                                        Returns:
                                        true if so

                                        supportsDifferentTableCorrelationNames

                                        public boolean supportsDifferentTableCorrelationNames()
                                                    throws SQLException
                                        If table correlation names are supported, are they restricted to be different from the names of the tables?
                                        Returns:
                                        true if so

                                        supportsExpressionsInOrderBy

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

                                        supportsExtendedSQLGrammar

                                        public boolean supportsExtendedSQLGrammar()
                                                    throws SQLException
                                        Is the ODBC Extended SQL grammar supported?
                                        Returns:
                                        true if so

                                        supportsFullOuterJoins

                                        public boolean supportsFullOuterJoins()
                                                    throws SQLException
                                        Are full nested outer joins supported?
                                        Returns:
                                        true if so

                                        supportsGetGeneratedKeys

                                        public boolean supportsGetGeneratedKeys()
                                                    throws SQLException
                                        Returns true if getting auto-generated keys is supported after a statment is executed; returns false otherwise

                                        supportsGroupBy

                                        public boolean supportsGroupBy()
                                                    throws SQLException
                                        Is some form of "GROUP BY" clause supported?
                                        Returns:
                                        true if so

                                        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?
                                        Returns:
                                        true if so

                                        supportsGroupByUnrelated

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

                                        supportsIntegrityEnhancementFacility

                                        public boolean supportsIntegrityEnhancementFacility()
                                                    throws SQLException
                                        Is the SQL Integrity Enhancement Facility supported?
                                        Returns:
                                        true if so

                                        supportsLikeEscapeClause

                                        public boolean supportsLikeEscapeClause()
                                                    throws SQLException
                                        Retrieves whether this database supports specifying a LIKE escape clause.
                                        Returns:
                                        true if so

                                        supportsLimitedOuterJoins

                                        public boolean supportsLimitedOuterJoins()
                                                    throws SQLException
                                        Retrieves whether this database provides limited support for outer joins. (This will be true if the method supportsFullOuterJoins returns true).
                                        Returns:
                                        true if so

                                        supportsMinimumSQLGrammar

                                        public boolean supportsMinimumSQLGrammar()
                                                    throws SQLException
                                        Retrieves whether this database supports the ODBC Minimum SQL grammar.
                                        Returns:
                                        true if so

                                        supportsMixedCaseIdentifiers

                                        public boolean supportsMixedCaseIdentifiers()
                                                    throws SQLException
                                        Retrieves whether this database treats mixed case unquoted SQL identifiers as case sensitive and as a result stores them in mixed case.
                                        Returns:
                                        true if so

                                        supportsMixedCaseQuotedIdentifiers

                                        public boolean supportsMixedCaseQuotedIdentifiers()
                                                    throws SQLException
                                        Retrieves whether this database treats mixed case quoted SQL identifiers as case sensitive and as a result stores them in mixed case.
                                        Returns:
                                        true if so

                                        supportsMultipleOpenResults

                                        public boolean supportsMultipleOpenResults()
                                                    throws SQLException
                                        Returns true if Callable statements can return multiple result sets; returns false if they can only return one result set.

                                        supportsMultipleResultSets

                                        public boolean supportsMultipleResultSets()
                                                    throws SQLException
                                        Are multiple ResultSets from a single execute supported?
                                        Returns:
                                        true if so

                                        supportsMultipleTransactions

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

                                        supportsNamedParameters

                                        public boolean supportsNamedParameters()
                                                    throws SQLException
                                        Returns true if the database supports named parameters; returns false if the database does not support named parameters.

                                        supportsNonNullableColumns

                                        public boolean supportsNonNullableColumns()
                                                    throws SQLException
                                        Retrieves whether columns in this database may be defined as non-nullable.
                                        Returns:
                                        true if so

                                        supportsOpenCursorsAcrossCommit

                                        public boolean supportsOpenCursorsAcrossCommit()
                                                    throws SQLException
                                        Can cursors remain open across commits?
                                        Returns:
                                        true if cursors always remain open; false if they might not remain open

                                        supportsOpenCursorsAcrossRollback

                                        public boolean supportsOpenCursorsAcrossRollback()
                                                    throws SQLException
                                        Can cursors remain open across rollbacks?
                                        Returns:
                                        true if cursors always remain open; false if they might not remain open

                                        supportsOpenStatementsAcrossCommit

                                        public boolean supportsOpenStatementsAcrossCommit()
                                                    throws SQLException
                                        Can statements remain open across commits?
                                        Returns:
                                        true if statements always remain open; false if they might not remain open

                                        supportsOpenStatementsAcrossRollback

                                        public boolean supportsOpenStatementsAcrossRollback()
                                                    throws SQLException
                                        Can statements remain open across rollbacks?
                                        Returns:
                                        true if statements always remain open; false if they might not remain open

                                        supportsOrderByUnrelated

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

                                        supportsOuterJoins

                                        public boolean supportsOuterJoins()
                                                    throws SQLException
                                        Is some form of outer join supported?
                                        Returns:
                                        true if so

                                        supportsPositionedDelete

                                        public boolean supportsPositionedDelete()
                                                    throws SQLException
                                        Is positioned DELETE supported?
                                        Returns:
                                        true if so

                                        supportsPositionedUpdate

                                        public boolean supportsPositionedUpdate()
                                                    throws SQLException
                                        Is positioned UPDATE supported?
                                        Returns:
                                        true if so

                                        supportsResultSetConcurrency

                                        public boolean supportsResultSetConcurrency(int type,
                                                                                    int concurrency)
                                                    throws SQLException
                                        Does the database support the concurrency type in combination with the given result set type?

                                        Supported concurrencies for SQL Server:

                                        JDBC concurrencySQL Server concurrencyRow locksDescription
                                        CONCUR_READ_ONLYRead onlyNoRead-only.
                                        CONCUR_UPDATABLEOptimistic concurrency, updatableNoRow integrity checked with timestamp comparison or, when not available, value comparison (except text and image fields).
                                        CONCUR_UPDATABLE+1Pessimistic concurrency, updatableYesRow integrity is ensured by locking rows.
                                        CONCUR_UPDATABLE+2Optimistic concurrency, updatableNoRow integrity checked with value comparison (except text and image fields).
                                        Parameters:
                                        type - defined in java.sql.ResultSet
                                        concurrency - type defined in java.sql.ResultSet
                                        Returns:
                                        true if so; false otherwise

                                        supportsResultSetHoldability

                                        public boolean supportsResultSetHoldability(int param)
                                                    throws SQLException

                                        supportsResultSetType

                                        public boolean supportsResultSetType(int type)
                                                    throws SQLException
                                        Does the database support the given result set type?

                                        Supported types for SQL Server:

                                        JDBC typeSQL Server cursor typeServer loadDescription
                                        TYPE_FORWARD_ONLYForward-only, dynamic (fast forward-only, static with useCursors=true)LightFast, will read all data (less fast, doesn't read all data with useCursors=true). Forward only.
                                        TYPE_SCROLL_INSENSITIVEStatic cursorHeavyOnly use with CONCUR_READ_ONLY. SQL Server generates a temporary table, so changes made by others are not visible. Scrollable.
                                        TYPE_SCROLL_SENSITIVEKeyset cursorMediumOthers' updates or deletes visible, but not others' inserts. Scrollable.
                                        TYPE_SCROLL_SENSITIVE + 1Dynamic cursorHeavyOthers' updates, deletes and inserts visible. Scrollable.
                                        Parameters:
                                        type - defined in java.sql.ResultSet
                                        Returns:
                                        true if so; false otherwise

                                        supportsSavepoints

                                        public boolean supportsSavepoints()
                                                    throws SQLException
                                        Returns true if savepoints are supported; returns false otherwise

                                        supportsSchemasInDataManipulation

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

                                        supportsSchemasInIndexDefinitions

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

                                        supportsSchemasInPrivilegeDefinitions

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

                                        supportsSchemasInProcedureCalls

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

                                        supportsSchemasInTableDefinitions

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

                                        supportsSelectForUpdate

                                        public boolean supportsSelectForUpdate()
                                                    throws SQLException
                                        Is SELECT for UPDATE supported?
                                        Returns:
                                        true if so

                                        supportsStatementPooling

                                        public boolean supportsStatementPooling()
                                                    throws SQLException
                                        Returns true if the database supports statement pooling; returns false otherwise.

                                        supportsStoredProcedures

                                        public boolean supportsStoredProcedures()
                                                    throws SQLException
                                        Are stored procedure calls using the stored procedure escape syntax supported?
                                        Returns:
                                        true if so

                                        supportsSubqueriesInComparisons

                                        public boolean supportsSubqueriesInComparisons()
                                                    throws SQLException
                                        Retrieves whether this database supports subqueries in comparison expressions.
                                        Returns:
                                        true if so

                                        supportsSubqueriesInExists

                                        public boolean supportsSubqueriesInExists()
                                                    throws SQLException
                                        Retrieves whether this database supports subqueries in EXISTS expressions.
                                        Returns:
                                        true if so

                                        supportsSubqueriesInIns

                                        public boolean supportsSubqueriesInIns()
                                                    throws SQLException
                                        Retrieves whether this database supports subqueries in IN statements.
                                        Returns:
                                        true if so

                                        supportsSubqueriesInQuantifieds

                                        public boolean supportsSubqueriesInQuantifieds()
                                                    throws SQLException
                                        Retrieves whether this database supports subqueries in quantified expressions.
                                        Returns:
                                        true if so

                                        supportsTableCorrelationNames

                                        public boolean supportsTableCorrelationNames()
                                                    throws SQLException
                                        Retrieves whether this database supports table correlation names.
                                        Returns:
                                        true if so

                                        supportsTransactionIsolationLevel

                                        public boolean supportsTransactionIsolationLevel(int level)
                                                    throws SQLException
                                        Does the database support the given transaction isolation level?
                                        Parameters:
                                        level - the values are defined in java.sql.Connection
                                        Returns:
                                        true if so
                                        See Also:
                                        Connection

                                        supportsTransactions

                                        public boolean supportsTransactions()
                                                    throws SQLException
                                        Retrieves whether this database supports transactions. If not, invoking the method commit is a noop, and the isolation level is TRANSACTION_NONE.
                                        Returns:
                                        true if transactions are supported

                                        supportsUnion

                                        public boolean supportsUnion()
                                                    throws SQLException
                                        Is SQL UNION supported?
                                        Returns:
                                        true if so

                                        supportsUnionAll

                                        public boolean supportsUnionAll()
                                                    throws SQLException
                                        Is SQL UNION ALL supported?
                                        Returns:
                                        true if so

                                        syscall

                                        private String syscall(String catalog,
                                                               String call)
                                        Format the supplied procedure call as a valid JDBC call escape.
                                        Parameters:
                                        catalog - the database name or null
                                        call - the stored procedure call to format
                                        Returns:
                                        the formatted call escape as a String

                                        updatesAreDetected

                                        public boolean updatesAreDetected(int type)
                                                    throws SQLException
                                        JDBC 2.0 Indicates whether or not a visible row update can be detected by calling the method ResultSet.rowUpdated .
                                        Parameters:
                                        type - ResultSet type
                                        Returns:
                                        true if changes are detected by the result set type; false otherwise

                                        upperCaseColumnNames

                                        private static void upperCaseColumnNames(JtdsResultSet results)
                                                    throws SQLException
                                        Uppercase all column names.

                                        Sybase returns column names in lowecase while the JDBC standard suggests they should be uppercase.

                                        Parameters:
                                        results - the result set to modify

                                        usesLocalFilePerTable

                                        public boolean usesLocalFilePerTable()
                                                    throws SQLException
                                        Does the database use a file for each table?
                                        Returns:
                                        true if the database uses a local file for each table

                                        usesLocalFiles

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

                                        Generated on June 12 2008