Derby

Test-driven database development. Write readable, easy-to-maintain unit and integration tests for your database code. DBFit is a part of FitNesse, itself an implementation of the FIT acceptance testing framework. DBFit is directly targeted at database testing. Tests are written as wiki tables with a query or procedure execute followed by a listing of the expected results.  It can handle direct SQL, stored procedures, or, with a bit of simple customization, custom procedures.