Spring Data JPA Tutorial

1. Spring Data JPA Introduction

The repository abstraction Spring Data JPA adds over plain JPA, with a complete JpaRepository example.

2. Query Methods & JPQL

Derived query methods, @Query with JPQL and native SQL, and pagination and sorting with Pageable.

3. Relationships & Transactions

@OneToMany, @ManyToOne and @ManyToMany mappings, @Transactional, and lazy vs eager loading trade-offs.

4. Auditing & Soft Deletes

@CreatedDate/@LastModifiedDate with @EntityListeners, and implementing soft deletes with @SQLDelete/@SQLRestriction.

5. Specifications & Dynamic Queries

The Specification API for building dynamic, composable queries, and when it beats derived query methods.

6. Spring Data JPA Interview Questions

Commonly asked Spring Data JPA interview questions with clear, practical answers.