1. What is the importance of Caching in Hibernate?

2. What is the difference between first level caching and second level of caching in Hibernate?

3. How will you do the lazy fatching in Hibernate?

4.What is the major difference between Hibernate and EJB 2.1?What are the advantage of using both in different Scenario?

5. What is the major difference between using HQL and SQL?

6.What is the use of MiddleGen in Hibernate?

7.How does Primary Key get  implement in Hibernate?

Hibernate in Action is one of the good book to know more on Hibernate...