If you have a question about Hibernate this is the book with the answers. Hibernate: Questions and Answers takes some of the best questions and answers asked on the stackoverflow website.
You can use this book to lookup commonly asked questions, browse questions on a particular topic, compare answers to common topics, check out the original source and much more. This eBook has been designed to be very easy to use, with many internal links set up that makes browsing in many different ways possible.

Topics covered include: JPA, Spring, ORMs, HQL, MySql, annotations, criteria, Oracle, persistence, transactions, Grails and many more.