JPA Criteria SELECT Clause The SELECT clause is used to fetch the data from database. The data can be retrieved in the…
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JPA Tutorial
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JPA Many-To-Many Mapping The Many-To-Many mapping represents a collection-valued association where any number of entities can be associated with a collection of…
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JPA Criteria WHERE Clause The WHERE clause is used to apply conditions on database and fetch the data on the basis of…
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JPA Many-To-One Mapping The Many-To-One mapping represents a single-valued association where a collection of entities can be associated with the similar entity.…
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Deleting an Entity To delete a record from database, EntityManager interface provides remove() method. The remove() method uses primary key to delete…
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JPA Object Relational Mapping Object Relational Mapping (ORM) is a functionality which is used to develop and maintain a relationship between an…
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JPA Entity Introduction In general, entity is a group of states associated together in a single unit. On adding behaviour, an entity…
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JPA One-To-Many Mapping The One-To-Many mapping comes into the category of collection-valued association where an entity is associated with a collection of…
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JPA Entity Manager Following are some of the important roles of an entity manager: – The entity manager implements the API and…
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JPA Set Mapping A Set is an interface that contains unique elements. These elements don’t maintain any order. A Set can be…