Hibernate

Hibernate ORM bridges the gap between Java objects and relational databases by automating SQL generation and state management.

Hibernate 6.x handles the heavy lifting of SQL generation and transaction management for Java applications. It maps domain models to relational tables (RDBMS) like PostgreSQL or Oracle using the Jakarta Persistence API. Features like lazy loading and second-level caching (Ehcache) ensure high performance while HQL provides a database-agnostic query language. By replacing manual JDBC, it reduces boilerplate by 90% and serves as the core of the Spring Data JPA ecosystem.

https://hibernate.org