1. JPA Auto Incrementing EmbeddedId (Composit primary key values). coderanch.comHi All, I have a problem with JPA composit primary key. when I am inserting values into Postgresql I am getting below exception Could not commit JPA transaction; nested exception is javax.persistence.RollbackException: Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.1 (Build b60-fcs (11/17/2008))): oracle.toplink.essentials.exceptions.DatabaseException Internal Exception: org.postgresql.util.PSQLException: ERROR: null value in column "id_corporative_event" violates not-null constraint Error Code: 0 Call: INSERT INTO ... |
2. About the property hibernate.jdbc.use_get_generated_keys forum.hibernate.org |