JPA的EntityManager createQuery()vs createNamedQuery()vs createNativeQuery() [英] JPA's EntityManager createQuery() vs createNamedQuery() vs createNativeQuery()

问题描述

任何人都可以向我解释一下JPA的EntityManager的以下方法之间的区别: createQuery()，createNamedQuery()和createNativeQuery() 还要说明我在哪种情况下应该使用哪种方法?

Can anyone please explain me the differences between following methods of JPA's EntityManager: createQuery(), createNamedQuery() and createNativeQuery() And also explain me on which cases we should you use which method ?

推荐答案

1. CreateQuery:用于创建 JPQL
2. createNamedQuery:用于定义在映射文件或注释中具有名称的查询转到这个
3. createNativeQuery:用于执行本机/纯SQL查询例子

1. CreateQuery: Used to create an JPQL
2. createNamedQuery: Used to define queries with name in mapping file or annotation go to this
3. createNativeQuery: Used to execute native/pure SQL queries Example

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