Let R (A1, A2, A3, A4) be a relation and F be a set of functional dependencies
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Let R (A1, A2, A3, A4) be a relation and F be a set of functional dependencies among attributes {A1, A2, A3, A4} such that:
• {A1, A2, A3, A4}+ = {A1, A2, A3, A4}
• no proper, nonempty subset of {A1, A2, A3, A4} is equal to its closure with respect to the set F of functional dependencies.
What is the set F of functional dependencies in R (compatible with the two conditions above) ? Show the full details of your work.
Related Book For
Fundamentals Of Database Systems
ISBN: 9780133970777
7th Edition
Authors: Ramez Elmasri, Shamkant Navathe
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