What do you mean by "duplicate tables"? There is one Customer table and one CreditCard table in one RDBMS (sql server in this case). I don't understand your "treat" part... Are you saying if my session bean is stateful, I don't need to join them? How do I get all the updates CreditCard rows/entities injected into the SFSB for perstistence processing??? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4092160#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...