hi, I changed the data type to "tinyint(1)" for boolean type, and solved the problems. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3973748#3973748 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3973748