Build around JDBC and XML, this tool allows you to maintain visual repesentations of a database's layout, edit table's data, generate code to bind objects to tables, and export data in XML format to easely export data from one database to another.
JDBC Tester is a software that allows to prove JDBC connections and SQL statements. The central idea is to have a software that is used for the design of statements and learning SQL with an graphical user interface simple to use.