Yes, the columnDefinition = "char(2)" works. How could i missed your hint. Thanks -B View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4095738#4095738 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4095738