o, I forget someting. I have created the database in mysql. and I have change the hibernate.cfg.xml file to met the request. but it didn't work. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994000#3994000 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3994000