I found some info here: http://wiki.jboss.org/wiki/Wiki.jsp?page=ChangeTheDatabase View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4047821#4047821 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4047821