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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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