c) Consider the following relation R with the functional dependencies: AC-→B, AD E, AB→C, E F, ВС -А, and B-D. RA B C D E F 1 2 3 4 5 6. 7 8 10 b) c) Is {AB, BC, ABDE, EF} a lossless-join...

I need the answer as soon as possiblec) Consider the following relation R with the functional dependencies: AC-→B, AD E, AB→C, E F,<br>ВС -А, and B-D.<br>RA<br>B<br>C<br>D<br>E<br>F<br>1<br>2<br>3<br>4<br>5<br>6.<br>7<br>8<br>10<br>b)<br>c)<br>Is {AB, BC, ABDE, EF} a lossless-join decomposition? Explain.<br>Is the decomposition {ABC, ACDE, ADF} lossless join?<br>Determine the projection of the set of functional dependencies of R onto ABC, ACDE, and<br>ADF. Is this decomposition dependency preserving?<br>d)<br>Decompose R into a set of 3NF relations, that is lossless join and dependency preserving.<br>

Extracted text: c) Consider the following relation R with the functional dependencies: AC-→B, AD E, AB→C, E F, ВС -А, and B-D. RA B C D E F 1 2 3 4 5 6. 7 8 10 b) c) 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 ADF. Is this decomposition dependency preserving? d) Decompose R into a set of 3NF relations, that is lossless join and dependency preserving.

Jun 10, 2022
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