anonymous wrote : java.sql.SQLException: invalid schema name: TEST in statement [SELECT COUNT(*) FROM TEST.BOOK WHERE ID=?] Do you have a database named TEST? Looks like the query is trying to access the table BOOK in the database TEST. The TEST i guess i configured through some xml file (probably -ds.xml)? P.S: I don't have any experience with entity beans in EJB2.x View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4153477#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...