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JPQL, EJBQL and HQL

 
Cristian Aionesa
Greenhorn
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Hi guys!

I am a little confused about these QL. I'm about to start an application and I don't know wich one to use. Can someone point some differences about them, articles anything..?Is JPQL the same as EJBQL?
 
Jeanne Boyarsky
author & internet detective
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JPQL is for EJB 3.0 (J2EE 5). EJBQL is for EJB 2.1 (J2EE 1.4 and below.) So which one you choose depends on what version of J2EE/EJB you are using.
 
It is sorta covered in the JavaRanch Style Guide.
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