Master Spring Data JPA
Learn to build powerful data access layers with Spring Data JPA. From basic CRUD operations to advanced queries, locking, and transactions.
Spring Data JPA Introduction
Understanding Spring Data JPA, its benefits over traditional JDBC, and how it simplifies data access layer development.
JPA Repository Interface & Entity Mapping
Master JpaRepository, CrudRepository, fetching strategies (EAGER vs LAZY), and entity relationships mapping.
Repositories and Query Methods
Create custom queries using method naming conventions, @Query annotation, and derived query methods.
Setting up Database with Spring Data JPA
Configure MySQL database connection, Hibernate dialect, schema generation, and connection pooling.
JPQL and Native Queries
Write complex queries using JPQL (Java Persistence Query Language) and native SQL queries for advanced use cases.
Optimistic and Pessimistic Locking
Implement concurrency control with @Version for optimistic locking and @Lock for pessimistic locking strategies.
Transactions
Master @Transactional annotation, propagation levels, isolation levels, and rollback behavior.
Senior Developer Interview Questions
Advanced JPA concepts: N+1 problem solutions, batch processing, second-level caching, query optimization, and entity lifecycle management.
Architect Level Interview Questions
System design with JPA: database sharding, read replicas, high availability patterns, microservices data strategies, and performance at scale.