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GATE CSE 2014 Set 1 | Question: 21 Self Doubt
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closed with the note: The question that I have put is based on wrong premise.

https://gateoverflow.in/1788/gate2014-1-21

{E,F,H} can be determine every attributes of the relation, but {E,F,H} cannot be determined by any other attributes,
hence,  {E,F,H} should be the primary key . But the answer provided is H. Can someone explain this to me, how in this universe 'H' is the key.

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