Hibernate is a Java-based object-relational mapping (ORM) framework that streamlines database interactions. It maps Java objects to database tables, automating CRUD operations. By abstracting database tasks, Hibernate enhances portability, scalability, and minimizes the need for direct SQL queries. It offers features like caching, lazy loading, and transaction management, making it an effective tool for data persistence in Java applications. For hands-on learning, you can opt for Hibernate Training in Chennai at FITA Academy, where expert trainers provide in-depth knowledge and practical experience.