Hibernate supports polymorphic queries. So you can write an interface and have the two entity classes implement that interface. When you query the interface with no restrictions/criteria in where clause, for example, you'll get all records from both tables. read more in Ch. 5 of JPA/Hibernate book. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4227345#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...