Homework Answers
1 Sol.
Given FDs:-
AB->C
BC->D
CD->E
DE->A
AE->B
We have schema S(A,B,C,D)
We compute closure of CD
CD+ = CD
CD+ = CDE (CD->E)
CD+ = CDEA (DE->A)
CD+ = CDEAB (AE->B)
Hence CD->B is correct
Option b.CD->B is correct
2.Sol
Option a.(3,null) is correct
Add Answer to:
1) what is the correct answer
2) what is the correct answer
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