I\'ve been searching and can\'t find an answer anywhere. I also haven\'t had time to try it out either.
Is it possible, using java in the Google App Engine (GAE), t
IMHO you can try to tunnel JDBC through HTTP. It is possible. For example here is free solution http://sourceforge.net/projects/sqlgateway/ and here commercial http://www.idssoftware.com/jdbcdrv.html :)