What is Spring Data JPA?

Spring Data JPA is a Spring module that simplifies the development of JPA-based data access layers. It provides a repository abstraction that reduces boilerplate code required to implement data access objects (DAOs). It's commonly used to interact with relational databases using JPA providers like Hibernate, EclipseLink, or DataNucleus, allowing developers to focus on business logic rather than low-level database interactions. Spring Data JPA also supports features like auditing, pagination, and dynamic query derivation from method names.