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Given the functional dependencies:
X→W; X→Y; Y→Z and Z→PQ
Which of the following does not hold good?
  • a)
    X→Z
  • b)
    W→Z
  • c)
    X→WY
  • d)
    None of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Given the functional dependencies:X→W; X→Y; Y→Z and Z&r...

Since there is no FD’s for which W functionally depends on other attributes.
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Most Upvoted Answer
Given the functional dependencies:X→W; X→Y; Y→Z and Z&r...
Sorry, there seems to be some information missing in the question. Please provide the complete set of functional dependencies.
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Given the functional dependencies:X→W; X→Y; Y→Z and Z→PQWhich of the following does not hold good?a)X→Zb)W→Zc)X→WYd)None of theseCorrect answer is option 'B'. Can you explain this answer?
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