Consider a schema R (A, B, C, and functional dependencies A->B and C -> D. Then the decomposition R1(A, B) and R2(C, is
A. Dependency preserving but not lossless join
B. Dependency preserving and lossless join
C. Lossless Join but not dependency preserving
D. Lossless Join
Answer:A
Consider a schema R (A, B, C, and functional dependencies A->B and C -> D. Then the decomposition R1(A, B) and R2(C, is
A. Dependency preserving but not lossless join B. Dependency preserving and lossless join C. Lossless Join but not dependency preserving D. Lossless Join