Hibernate is an ORM (Object-relational Mapping) framework, which allows the developer to concentrate on business logic by taking care of the persistence of data by itself. Java developers can write code using an object and Hibernate can take care of creating those objects from data loaded from the database and saving updates back to the database.
Apart from Persistence i.e. saving and loading data from Database, Hibernate also provides the following benefits
This is again a follow-up to the previous Hibernate interview question. The first level cache is maintained at the Session level while the second level cache is maintained at a SessionFactory level and shared by all sessions. You can read these books to learn more about caching in Hibernate.
There are two ways to map Java objects to a relational table:
An Object Relational Mapping (ORM) tool helps to simplify data creation, manipulation, and access by internally using Java API to interact with the databases. It’s a technique that maps objects stored in a database.
Hibernate outclasses JDBC because:
Hibernate supports databases like: