Recent questions tagged database-normalization

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6 answers
8
Consider a relation $R(ABCDEFGH)$.How many superkeys will be there in relation $R$ if the candidate keys for relation are ${A, BC, CDE, EF}$?
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1 answer
9
can we consider , proper subset of candidate key union proper subset of another candidate keyas a proper subset of candidate key.
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1 answer
10
please can someone help with part (a) of this question.