Relation \(R\) has eight attributes \(ABCDEFGH\). Fields of \(R\) contain only…
GATE · Computer Science · 2013
Relation \(R\) has eight attributes \(ABCDEFGH\). Fields of \(R\) contain only atomic values.
\(F={CH→G, A→BC, B→CFH, E→A, F→EG}\) is a set of functional dependencies (FDs) so that \(F^+\) is exactly the set of FDs that hold for \(R\).
How many candidate keys does the relation \(R\) have?
- A.
3
- B.
4
- C.
5
- D.
6
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Correct answer: B
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