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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

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