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Hibernate Interview Questions and Answers

  Difficulty Level: AllBeginnerIntermediateExpert

Ques 1. What is Hibernate?

Ques 2. What is ORM?

Ques 3. What does an ORM solution comprises of?

Ques 4. What are the different levels of ORM quality?

Ques 5. What is a pure relational ORM?

Ques 6. Why do you need ORM tools like hibernate?

Ques 7. What is a meant by light object mapping?

Ques 8. What is a meant by medium object mapping?

Ques 9. What is meant by full object mapping?

Ques 10. What are the benefits of ORM and Hibernate?

Ques 11. What the Core interfaces are of hibernate framework?

Ques 12. What should SessionFactory be placed so that it can be easily accessed?

Ques 13. What are POJOs?

Ques 14. What is object/relational mapping metadata?

Ques 15. What is HQL?

Ques 16. What are the most common methods of Hibernate configuration?

Ques 17. What are the important tags of hibernate.cfg.xml?

Ques 18. What role does the Session interface play in Hibernate?

Ques 19. What role does the SessionFactory interface play in Hibernate?

Ques 20. What is the general flow of Hibernate communication with RDBMS?

Ques 21. What is Hibernate Query Language (HQL)?

Ques 22. How do you map Java Objects with Database tables?

Ques 23. What Does Hibernate Simplify?

Ques 24. What is the difference between load() and get()?

Ques 25. What is the difference between and merge and update?

Ques 26. How do you define sequence generated primary key in hibernate?

Ques 27. What do you mean by Named - SQL query?

Ques 28. Explain Criteria API?

Ques 29. Define HibernateTemplate?

Ques 30. What are the benefits does HibernateTemplate provide?

Ques 31. If you want to see the Hibernate generated SQL statements on console, what should we do?

Ques 32. What are derived properties?

Ques 33. What is component mapping in Hibernate?

Ques 34. What is the difference between sorted and ordered collection in hibernate?

Ques 35. How will you configure Hibernate?

Ques 36. What is a SessionFactory? Is it a thread-safe object?

Ques 37. What is the difference between the session.update() method and the session.lock() method?

Ques 38. What are the general considerations or best practices for defining your Hibernate persistent classes?

Ques 39. What does ORM consists of?

Ques 40. What are the ORM level?

Ques 41. What is CRUD?

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