Up until now, JAG could only connect to databases that were explicitly supported (programatically). With the new 3.0.1 release of JAG, you can use the "Driver Manager" function to dynamically import new JDBC drivers. This enables you (in theory) to connect to any database that you have a JDBC driver for! So far succesfully tested against MySQL, Oracle 8, HSQLDB (Hypersonic) and PostgreSQL...