R (A,B,C,is a relation. Which of the following does not have a lossless join dependency preserving BCNF decomposition?
A. A->B, B->CD
B. A->B, B->C, C->D
C. AB->C, C->AD
D. A->BCD
Answer:D
R (A,B,C,is a relation. Which of the following does not have a lossless join dependency preserving BCNF decomposition?
A. A->B, B->CD B. A->B, B->C, C->D C. AB->C, C->AD D. A->BCD