Hi, Is it possible to tell tje ejb3 layer the name of constraints? For example a PK's name will be something like SYS_C0000123 running on oracle. Something like PK_TABLE_ID would be helpful because when a insert statement violates the constraint, the db will tell me the constraint name. Is there a way to define such names using JBoss EJB3? thx, Bernhard View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3967261#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...