Fixed DatabaseMetaData.getTables()
          returning views when they were not asked for as one of the
          requested table types.
        
          Added support for new precision-math
          DECIMAL type in MySQL 5.0.3 and up.
        
          Fixed ResultSet.getTime() on a
          NULL value for server-side prepared
          statements throws NPE.
        
          Made Connection.ping() a public method.
        
          DATE_FORMAT() queries returned as
          BLOBs from getObject().
          (Bug#8868)
        
          ServerPreparedStatements now correctly
          „stream“
          BLOB/CLOB data to the
          server. You can configure the threshold chunk size using the
          JDBC URL property blobSendChunkSize (the
          default is 1MB).
        
          BlobFromLocator now uses correct identifier
          quoting when generating prepared statements.
        
          Server-side session variables can be preset at connection time
          by passing them as a comma-delimited list for the connection
          property sessionVariables.
        
          Fixed regression in ping() for users using
          autoReconnect=true.
        
          PreparedStatement.addBatch() doesn't work
          with server-side prepared statements and streaming
          BINARY data. (Bug#9040)
        
          DBMD.supportsMixedCase*Identifiers()
          returns wrong value on servers running on case-sensitive
          filesystems. (Bug#8800)
        
          Cannot use UTF-8 for characterSetResults
          configuration property. (Bug#9206)
        
          A continuation of Bug#8868, where functions used in queries
          that should return non-string types when resolved by temporary
          tables suddenly become opaque binary strings (work-around for
          server limitation). Also fixed fields with type of
          CHAR(n) CHARACTER SET BINARY to return
          correct/matching classes for
          RSMD.getColumnClassName() and
          ResultSet.getObject(). (Bug#9236)
        
          DBMD.supportsResultSetConcurrency() not
          returning true for forward-only/read-only
          result sets (we obviously support this). (Bug#8792)
        
          DATA_TYPE column from
          DBMD.getBestRowIdentifier() causes
          ArrayIndexOutOfBoundsException when
          accessed (and in fact, didn't return any value). (Bug#8803)
        
          Check for empty strings ('') when
          converting CHAR/VARCHAR
          column data to numbers, throw exception if
          emptyStringsConvertToZero configuration
          property is set to false (for
          backward-compatibility with 3.0, it is now set to
          true by default, but will most likely
          default to false in 3.2).
        
          PreparedStatement.getMetaData() inserts
          blank row in database under certain conditions when not using
          server-side prepared statements. (Bug#9320)
        
          Connection.canHandleAsPreparedStatement()
          now makes „best effort“ to distinguish
          LIMIT clauses with placeholders in them
          from ones without in order to have fewer false positives when
          generating work-arounds for statements the server cannot
          currently handle as server-side prepared statements.
        
          Fixed build.xml to not compile
          log4j logging if log4j
          not available.
        
          Added support for the c3p0 connection pool's
          (http://c3p0.sf.net/) validation/connection
          checker interface which uses the lightweight
          COM_PING call to the server if available.
          To use it, configure your c3p0 connection pool's
          connectionTesterClassName property to use
          com.mysql.jdbc.integration.c3p0.MysqlConnectionTester.
        
          Better detection of LIMIT inside/outside of
          quoted strings so that the driver can more correctly determine
          whether a prepared statement can be prepared on the server or
          not.
        
Stored procedures with same name in different databases confuse the driver when it tries to determine parameter counts/types. (Bug#9319)
          Added finalizers to ResultSet and
          Statement implementations to be JDBC
          spec-compliant, which requires that if not explicitly closed,
          these resources should be closed upon garbage collection.
        
          Stored procedures with DECIMAL parameters
          with storage specifications that contained
          ‘,’ in them would fail. (Bug#9682)
        
          PreparedStatement.setObject(int, Object, int type,
          int scale) now uses scale value for
          BigDecimal instances.
        
          Statement.getMoreResults() could throw NPE
          when existing result set was .close()d.
          (Bug#9704)
        
The performance metrics feature now gathers information about number of tables referenced in a SELECT.
          The logging system is now automatically configured. If the
          value has been set by the user, via the URL property
          logger or the system property
          com.mysql.jdbc.logger, then use that,
          otherwise, autodetect it using the following steps:
        
Log4j, if it's available,
Then JDK1.4 logging,
              Then fallback to our STDERR logging.
            
          DBMD.getTables() shouldn't return tables if
          views are asked for, even if the database version doesn't
          support views. (Bug#9778)
        
          Fixed driver not returning true for
          -1 when
          ResultSet.getBoolean() was called on result
          sets returned from server-side prepared statements.
        
          Added a Manifest.MF file with
          implementation information to the .jar
          file.
        
          More tests in Field.isOpaqueBinary() to
          distinguish opaque binary (that is, fields with type
          CHAR(n) and CHARACTER SET
          BINARY) from output of various scalar and aggregate
          functions that return strings.
        
          Should accept null for catalog (meaning use
          current) in DBMD methods, even though it's not JDBC-compliant
          for legacy's sake. Disable by setting connection property
          nullCatalogMeansCurrent to
          false (which will be the default value in
          C/J 3.2.x). (Bug#9917)
        
          Should accept null for name patterns in
          DBMD (meaning ‘%’), even though
          it isn't JDBC compliant, for legacy's sake. Disable by setting
          connection property
          nullNamePatternMatchesAll to
          false (which will be the default value in
          C/J 3.2.x). (Bug#9769)
        
Dies ist eine Übersetzung des MySQL-Referenzhandbuchs, das sich auf dev.mysql.com befindet. Das ursprüngliche Referenzhandbuch ist auf Englisch, und diese Übersetzung ist nicht notwendigerweise so aktuell wie die englische Ausgabe. Das vorliegende deutschsprachige Handbuch behandelt MySQL bis zur Version 5.1.

