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JPA Interview Questions and Answers

Ques. What is JPA and its key components?
Ans. Mapping between database tables and java objects called ORM (Object Relational Mapping). JPA (Java Persistence API) provides and ORM facility for managing relational tables in Java applications. It is a specification and few implementations are like Hibernate, JDO, EJB, Toplink. By using JPA can be fetched data, insert, update etc.
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