What is Spring DAO?

Spring DAO (Data Access Object) is a data access abstraction layer provided by the Spring Framework. It simplifies database interactions by providing a consistent way to access data regardless of the underlying database technology (e.g., JDBC, Hibernate, JPA). It reduces boilerplate code, handles exception translation, and promotes loose coupling between application code and data access logic. Spring Data is a broader project that encompasses Spring DAO and provides additional repositories and abstractions for various data stores.