Q.

Choose the correct statement regarding superkeys

A. A superkey is an attribute or a group of multiple attributes that can uniquely identify a tuple
B. A superkey is a tuple or a set of multiple tuples that can uniquely identify an attribute
C. Every superkey is a candidate key
D. A superkey is an attribute or a set of attributes that distinguish the relation from other relations
Answer» A. A superkey is an attribute or a group of multiple attributes that can uniquely identify a tuple
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