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10.4. Hibernate Query Language
10.4.1. About Hibernate Query Language
The Hibernate Query Language (HQL) and Java Persistence Query Language (JPQL) are both object model focused query languages similar in nature to SQL. HQL is a superset of JPQL. A HQL query is not always a valid JPQL query, but a JPQL query is always a valid HQL query.
Both HQL and JPQL are non-type-safe ways to perform query operations. Criteria queries offer a type-safe approach to querying.