The JPA and Hibernate ORM are the most popular frameworks used in most Java applications to interact with a relational database. Their popularity increased because they use the mapping between the object-oriented domain and underlying relational database to abstract the database interactions and make it very easy to implement simple CRUD operations.

Under this abstraction, Hibernate uses a lot of optimizations and hides all database interactions behind its API. Oftentimes, don't even know when Hibernate will execute an SQL statement. Because of this abstraction, it becomes hard to find inefficiencies and potential performance problems. Let's see the common Hibernate problems that we face in our applications.