JPA - Object-Relational Mapping (ORM)

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About

JPA standardizes the important task of object-relational mapping by using:

to map objects into one or more tables of a database.

The JPA specification explicitly defines the object-relational mapping, rather than relying on vendor-specific mapping implementations.

The mapping metadata are an union of:

Type

  • top-down: Generating database tables from entity beans

Documentation / Reference




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