连接sybase的Sybase-jconn3.jar、Sybase-jTDS3.jar；连接SQL Server 2000的三个jar包，msutil.jar、msbase.jar、mssqlserver.jar；连接oracle的ojdbc14.jar；连接mysql的mysql-connector-java-5.1.7-bin.jar。
Starting with the 10g release, Oracle now offers a new interface, known as JDWP, for debugging PL/SQL and stored Java procedures. Toad fully supports both interfaces, but we recommend you continue to use DBMS_DEBUG unless you need to debug your Java
