JPA Query Language (JPQL) Basics: A Complete Guide for Beginners and Professionals
Learn JPQL in JPA with examples. Understand queries, joins, filtering, CRUD, and best practices for efficient database interaction in Java applications
Learn JPQL in JPA with examples. Understand queries, joins, filtering, CRUD, and best practices for efficient database interaction in Java applications
Learn JPQL joins, subqueries, and functions in JPA with practical examples, performance tips, and best practices for enterprise Java applications
Learn how to use @NamedQuery and @NamedNativeQuery in JPA for reusable JPQL and SQL queries with real-world examples, performance tips, and best practices.
Master Criteria API in JPA with type-safe queries, examples, and best practices. Learn dynamic querying with EntityManager, CriteriaBuilder, and Metamodel
Learn how to implement efficient pagination in JPA using setFirstResult and setMaxResults with examples, best practices, and performance tips
Learn how to use native SQL queries in JPA for complex database operations with @NamedNativeQuery, EntityManager, and best practices for production
Learn JPA entity listeners and lifecycle callbacks like @PrePersist, @PostLoad, and @PostRemove with examples, use cases, pitfalls, and best practices
Learn JPA caching with first-level and second-level caches, including EntityManager behavior, Hibernate cache, pitfalls, and best practices for performance
Learn the difference between optimistic and pessimistic locking in JPA with real-world examples, annotations, EntityManager usage, and best practices
Master orphan removal and cascading deletes in JPA with real-world examples, EntityManager usage, SQL outputs, pitfalls, and best practices for production
Learn how JPA dirty checking and flushing work to synchronize entity state with the database. Complete guide with examples, SQL output, and best practices
Learn how to integrate stored procedures and database functions in JPA with annotations, EntityManager, SQL examples, Spring Boot integration, and best practices.
Learn how to map and query database views in JPA using annotations, EntityManager, JPQL, and native queries. Includes Spring Boot examples and best practices
Learn how to optimize JPA performance with batch inserts, updates, and fetching. Includes configuration, code examples, SQL outputs, pitfalls, and best practices
Learn how to solve the N+1 select problem in JPA using fetch joins, entity graphs, batch fetching, and best practices. Includes SQL examples and Spring Boot integration
Learn multi-tenancy in JPA with shared and separate schema strategies. Includes setup, configurations, Spring Boot integration, pitfalls, and best practices.
Learn JPA best practices for real-world applications. Includes configuration, performance tuning, Spring Boot integration, pitfalls, and production-ready guidelines
Learn how to integrate JPA with Spring and Spring Boot. Includes setup, entity mappings, repositories, CRUD examples, queries, and production best practices
Learn JPA with Jakarta EE for building scalable enterprise applications. Covers setup, annotations, CRUD, queries, performance, pitfalls, and best practices
Master JPA validation with Bean Validation (JSR-380). Learn setup, annotations, EntityManager integration, real-world examples, pitfalls, and best practices