Database-Management-System
August 29, 2024Database-Management-System
August 29, 2024Database-Management-System
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Question 305
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The maximum number of superkeys for the relation schema R(E,f,G,R) with E as
the key is
the key is
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8
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7
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5
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6
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Question 305 Explanation:
Since E is the key so it has to be included since we need superkeys. And for the remaining attribute they might be present or they might not be present,So we can say that for the remaining attributes we have two choices .So the answer will be 2*2*2 = 8
Correct Answer: A
Question 305 Explanation:
Since E is the key so it has to be included since we need superkeys. And for the remaining attribute they might be present or they might not be present,So we can say that for the remaining attributes we have two choices .So the answer will be 2*2*2 = 8