Database-Management-System
August 29, 2024Database-Management-System
August 29, 2024Database-Management-System
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Question 765
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If every functional dependency in set E is also in closure of F then this is classified as:
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FD is covered by E
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E is covered by F
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F is covered by E
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F plus is covered by E
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Question 765 Explanation:
A covers B, if every FD in B can be inferred from A.
A covers B if A + ⊆ B + (+ means closure ).
Every set of functional dependencies has a canonical cover.
A covers B if A + ⊆ B + (+ means closure ).
Every set of functional dependencies has a canonical cover.
Correct Answer: B
Question 765 Explanation:
A covers B, if every FD in B can be inferred from A.
A covers B if A + ⊆ B + (+ means closure ).
Every set of functional dependencies has a canonical cover.
A covers B if A + ⊆ B + (+ means closure ).
Every set of functional dependencies has a canonical cover.