![]() Criteria Queries are provided as an object-oriented alternative to HQL. Hibernate provides a SQL inspired language called Hibernate Query Language (HQL) for writing SQL-like queries against Hibernate's data objects. Mapping informs the ORM tool of what Java class object to store in which database table. Mapping is a way of resolving the object–relational impedance mismatch problem. This problem is called " object–relational impedance mismatch". Objects in an object-oriented application follow OOP principles, while objects in the back-end follow database normalization principles, resulting in different representation requirements.
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