Given the following relation: delivery(mRNA, price, customer, time) And functional dependencies: mRNA, time price mRNA, price

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Given the following relation: delivery(mRNA, price, customer, time)

And functional dependencies:

mRNA, time → price

mRNA, price → time

customer, time → mRNA

1. Solve X+ for every subset of the relation's attributes.

2. Find all keys (candidate and superkeys).

3. Explain non-trivial functional dependencies with an example

Related Book For answer-question

Data Modeling and Database Design

ISBN: 978-1285085258

2nd edition

Authors: Narayan S. Umanath, Richard W. Scammel

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Posted Date: Mar 27, 2024 05:57 AM

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Given the following relation: delivery(mRNA, price, customer, time) And functional dependencies: mRNA, time price mRNA, price

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Data Modeling and Database Design

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