Memory-Interfacing
December 3, 2023Artificial-Intelligence
December 3, 2023Database-Management-System
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Question 115
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From the following instance of a relation scheme R(A,B,C), we can conclude that:
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A functionally determines B and B functionally determines C
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A functionally determines B and B does not functionally determines C
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B does not functionally determines C
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A does not functionally determines B and B does not functionally determines C
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Question 115 Explanation:
From the given instance of relation it can be seen that A functionally determines B, but we cannot conclude this for the entire relation.
But for the given instance it can be seen that B does not functionally determines C, and it can be concluded for entire relation.
But for the given instance it can be seen that B does not functionally determines C, and it can be concluded for entire relation.
Correct Answer: C
Question 115 Explanation:
From the given instance of relation it can be seen that A functionally determines B, but we cannot conclude this for the entire relation.
But for the given instance it can be seen that B does not functionally determines C, and it can be concluded for entire relation.
But for the given instance it can be seen that B does not functionally determines C, and it can be concluded for entire relation.