JPA Cascading Operations In JPA, if any operation is applied on an entity then it will perform on that particular entity only.…
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jpa tutorial
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JPA Introduction The Java Persistence API (JPA) is a specification of Java. It is used to persist data between Java object and…
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Collection Mapping A Collection is a java framework that groups multiple objects into a single unit. It is used to store, retrieve…
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JPA Joined strategy In joined strategy, a separate table is generated for every entity class. The attribute of each table is joined…
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JPA Creating an Entity A Java class can be easily transformed into an entity. For transformation the basic requirements are: – No-argument…
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JPA JPQL Advanced Operations Using JPQL, we can perform any type of database operations. Here, we will perform some advanced operations of…
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JPA Criteria API The Criteria API is one of the most common ways of constructing queries for entities and their persistent state.…
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JPA JPQL Basic Operations JPQL allows us to create both static as well as dynamic queries. Now, we will perform some basic…
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JPA Criteria GROUP BY Clause The GROUP BY clause is used to collect data from one or more tables and arrange them…
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JPA JPQL Bulk Data Operations In the previous section, we fetched single column only. Now, we will learn how to handle bulk…