Hi, Sorry the late reply but I was busy with other activities. I just discovered why my code wasn't working. I had created an Oracle before insert trigger for Person and Address table that used the sequences to insert the primary key value in the tables. I didn't realize that JBOSS invokes the sequences to generate the primary key itself. Thank you very much for your help. Nei View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4082762#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...