> # Part 3: Developing JDBC Applications

> This part contains the following chapters:

> - "Using the JDBC Client" provides information about using JDBC applications with the SequeLink Client for JDBC.
> - "Using DataDirect Test™" introduces DataDirect Test, a tool that allows you to test and learn the JDBC API, and contains a tutorial that takes you through a working example of its use.
> - "Tracking JDBC Calls" introduces Spy, a tool that allows you to track JDBC calls, and describes how to use it.
> - "Developing JDBC Applications" provides information about developing JDBC applications for SequeLink environments.