Question
c) Consider the following relation R with the functional dependencies: AC-B, AD E, ABC, E F, -, and B-D. RA B C D E
c) Consider the following relation R with the functional dependencies: AC-B, AD E, ABC, E F, -, and B-D. RA B C D E F 1 X 2 3 4 6. 7 8 9. 10 Is {AB, BC, ABDE, EF} a lossless-join decomposition? Explain. Is the decomposition {ABC, ACDE, ADF} lossless join? Determine the projection of the set of functional dependencies of R onto ABC, ACDE, and b) c) ADF. Is this decomposition dependency preserving? d) Decompose R into a set of 3NF relations, that is lossless join and dependency preserving.
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Accounting Information Systems
Authors: George H. Bodnar, William S. Hopwood
11th Edition
0132871939, 978-0132871938
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