JPA Hibernate 复合 ID

Question

I need to retrieve data from two tables. Tab1 and Tab2.

Tab1 has these columns :- tabId(Foreign key with Tab2.tabId)(Primary Key), tabType(Primary Key), tabAdd(Primary Key), tabUser

Tab2 has these columns :- tabId(Primary Key), location, name, description.

Really appreciate quick help!!

Answer 1

Maybe you should edit the post and show us DB diagram because your description isn't clear. I think if we should have more data :) you have 3 PK on tab1? Which relationship is between them? Greetings :)