When I saw that, this was what I thought. But ... I don't find any hibernate.cfg file that had the wrong dialect View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4113322#4113322 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4113322