Yes, that's true. It can be done using the terrible hack that is the JDBC-ODBC-Bridge. It's an unstable piece of software that's missing some crucial features, but basically works good enough for basic experimentation. For anything more I'd suggest using either a real database (or mysql ;-)) or using another local file-based database, such as the one provided by [url=http://hsqldb.org/]HSQLDB[/url].