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Java Training: - Explain ORM and different levels of ORM quality?

ORM: -

ORM stands for Object/Relational mapping which is mainly used to remove the difference between object oriented and relation model

Different levels of ORM quality: -

  • Pure relational entire application, including the user interface, is designed around the relational model and SQL-based relational operations
  • Light object mapping The entities are represented as classes that are mapped manually to the relational tables
  • Medium object mapping The application is designed around an object model. The SQL code is generated at build time. And the associations between objects are supported by the persistence mechanism, and queries are specified using an object-oriented expression language
  • Full object mapping supports sophisticated object modeling: composition, inheritance, polymorphism and persistence

See the following video on Batch Processing in Hibernate: -

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Contributed by:
Shivprasad Koirala
We conduct training for Java/J2EE technologies like design patterns, J2EE, Struts, Hibernate, Spring, Rich Interface etc. and likes to write articles on the same in free time.

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