JPA composite primary key with null value

Question

I have a table containing customer data in an oracle database. Here is a simplified definition:

CUSTOMER (CUSTOMER_ID NUMBER NOT NULL,
          SOURCE_SYST         


        

Answer 1

Primary keys cannot contain null (in JPA or in databases). Use a different value such as "" or " ".

Is the customer_id unique? if so then just remove the sourceSystem from the Id.

Otherwise, you could try logging a bug to have support for null ids added.