What's the exact difference between @JoinColumn and @PrimaryKeyJoinColumn? You use @JoinColumn for columns that are part of a foreign key. A typical column could look like (e.g. in a join table wi...

I haven't been able to fully grasp the differences. Can you describe both concepts and use real world examples?

So, I've been reading up on identifying vs. non-identifying relationships in my database design, and a number of the answers on SO seem contradicting to me. Here are the two questions I am looking ...

I've read this question: What's the difference between identifying and non-identifying relationships? But I'm still not too sure... What I have is three tables. Users Objects Pictures A us...

In trying to learn the art of data storage I have been trying to take in as much solid information as possible. PerformanceDBA posted some really helpful tutorials/examples in the following posts a...