4.1. Decomposition (10 points).
Assume
R = (A B C D E)
and
F ={AB→CDE,C→E,D→B}
Where A, B, C, D, and E represent individual attributes.
Decompose R into BCNF, lossless, dependency preserving.
If this is not possible, decompose R into 3NF, lossless, dependencypreserving. Show your decomposition and state whether is it BCNF or3NF.
4.2. Decomposition (10 points).
Assume
R = (A B C D E)
and
F = {A → BCDE, C → E, D → B }.
Where A, B, C, D, and E represent individual attributes.
Decompose R into BCNF, lossless, dependency preserving.
If this is not possible, decompose R into 3NF, lossless, dependencypreserving. Show your decomposition and state whether it is BCNF
OR
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