Hi,
i am complete beginner if it comes to JPA/EJB so i dont know, if i will be able to explain myself correctly but here we go:
here is my database
and two automatically generated by netBeans classes (based on that database)
and in the third class UserDAOBean i am doing createUser updateUser deleteUser ... etc.
i am able to successfully persist() or remove() user but i can not update(merge ?) username(PK)
any ideas ?