SQL Star, a SQL client provides a common Graphical User Interface (GUI) for all database servers (like, oracle, microsoft sql server, mysql etc.,) using JAVA JDBC 3.0 API With type 4 driver.
jdbc2jdbc is a JDBC 2.0 driver (type 4) that sits between a database client and another JDBC driver. It is completely transparent to the database client. Its purpose is to log all actions that the database client executes on the database.