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I wonder if there is an equally elegant solution for Oracle for the problem posted and answered here:

Comparing Columns that can contain NULLS - is there a more elegant way?

I can't get this solution (the one which was accepted) to work in Oracle environment.

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Oracle has MINUS in place of EXCEPT. –  ypercube Apr 5 '13 at 18:05
still doesn't work as shown in the previous quesion when I change that keyword... error is sql command not ended properly. –  robarwebservices Apr 5 '13 at 20:26
Ah, yeah, because Oracle doesn't like SELECT without FROM clause. Try ... AND EXISTS(SELECT A.* FROM dual MINUS SELECT B.* FROM dual) –  ypercube Apr 6 '13 at 0:38

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