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Question on Query service


Can I use the Query service direclty, to retrive data from two or more table by joining them and with out having a persistant objects for the above said tables.

If this is possible please let me know how to do that.



Former Member

I think you have a fundamental misunderstanding. The query service is a bunch of classes and interfaces that provide services to the persistence framework.

Look at this

These Object Services include:

· A Persistence Service, used to manage persistent objects in the database

· A Transaction Service, used to update persistent objects

· A Query Service, used to search for and load persistent objects.


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