1.

Which of the following statements is TRUE?D1: The decomposition of the schema R(A,B,C) into R1(A,B) and R2(A,C) is always lossless.D2: The decomposition of the schema R(A,B,C,D,E) having AD→B, C→DE, B→AE, AE→C into R1(A,B,D) and R2(A,C,D,E) is lossless.

A. Both D1 and D2
B. Neither D1 and D2
C. Only D1
D. Only D2
Answer» E.


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