Hi,
I don't understand the difference between the normal second level caching and query caching.

When I checked the database log without enabling query caching (using the normal second level caching) I found that it performed two database queries.
But after enabling the query caching it performed only on database query.
Why did this happen?

I can't also understand the part of Caching and Object Identity (in hibernate in action).
What does transaction-scoped object identity mean?

It seems that there is something that I'm missing
Could anyone please explain this to me.

Thanks in Advance.
Sherihan.
Hibernate version:

Mapping documents:

Code between sessionFactory.openSession() and session.close():

Full stack trace of any exception that occurs:

Name and version of the database you are using:

The generated SQL (show_sql=true):

Debug level Hibernate log excerpt:

Well, the explanations we use are the explanations in Hibernate in Action, so you could just reread that until you understand it. I think most people don't have problems with this, it just needs some time.