Computer-Networks
October 16, 2023Computer-Networks
October 16, 2023Database-Management-System
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Question 705
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If D={R1,R2} is a decomposition of R, and F is the set of functional dependencies on R, then which of the following ensures that the decomposition D is lossless (nonadditive)?
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((R1∩ R2) →(R1-R2)) ∈ F+
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((R1 ∩R2) → (R1 – R2)) ∉ F+
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((R1 ∪ R2) →(R1 – R2)) ∈ F+
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((R1∩R2) →R1 ) ∈ F+
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Question 705 Explanation:
Correct Answer: A
Question 705 Explanation:
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