X → Y holds on a schema k(K) if? – McqOptions

MCQOPTIONS

1.	X → Y holds on a schema k(K) if?
A.	At least one legal instance satisfies the functional dependency
B.	No legal instance satisfies the functional dependency
C.	Each and every legal instance satisfies the functional dependency
D.	None of the mentioned
Answer» D. None of the mentioned

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