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I have a table T with fields f1 , f2 and f3.
I would like to retrieve every f1 which belongs to the row with duplicate f2 and f3 fields. How can this be done ?
Edit :
Such as for :
(1,2,3)
(2,2,3)
(4,1,1)
(2,2,2)
(3,4,3)
(1,5,6)
Expected result being :
(1)
(2)
try this