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EJB3 and DBMS portability

 
Carlos Gavidia
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Does EJB3 have mechanism that solve's DMBS portability issues? (so my app's code work with Oracle and SQL Server with no DBMS specific SQL statements, for example). I heard Hibernate does that, and i also heard both technologies(EJB3 and Hibernate) are similar.
 
Jeanne Boyarsky
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Carlos,
If you don't use DB specific SQL, it is portable. This is true regardless of technology (pure JDBC, EJB, Hibernate, etc.) It is also possible to write non-portable code using any technology. For example native queries in JPA.

Note that EJB 3 is JPA for the entity beans part. And Hibernate is an implementation of JPA.
 
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