JSQLIDE is a very old piece of code. It is a query runner and SQL environment written in Java Swing. It can run simple queries, request updatable resultsets for you to edit values inline, can do some basic table editing, and can keep remember queries you mark as useful.
I wrote it because at the time (1998?) there was really nothing like it that could span multiple dbs and was open source.
There’s not much to it. To run, simply run ant, which will result in a build/jsqlide.jar file. Then run that with java -jar of by double-clicking on the file.
a first-run dialog will help you tie in the JDBC jars to the configuration.