Thank you PeterJ, I am now moving with the datasource. But confusion again is that can (I am using Oracle database and data must be accessed from 3 users) we write 3 users and password in a single datasource file or we should make 3 different datasource file. And if we make 3 different datasources files what must be the name of the -ds.xml file. And How to access this -ds.xml file from the Code.. Thank you in advance anticipating the answer mabimal View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171979#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...