When Object-Relational Mapping Should Be Used

Object-relational mapping products should be be used when you want to take advantage of transparent persistence and use a relational database. A relational database may be required because:

  • The data already resides in one or more relational databases
  • The data is new, but there are technical or political reasons for using a relational database

In either case, an object-relational mapping product will reduce your programming code and, through caching, improve performance over using an embedded SQL or call-level interface with a relational database manager. Also see:

For how to use object-relational mapping with Java application servers, see

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