Question: 2. Give a necessary and sufficient condition for a decomposition of R into R1 and R2 to be lossless join. Very briefly explain why the

2. Give a necessary and sufficient condition for a decomposition of

2. Give a necessary and sufficient condition for a decomposition of R into R1 and R2 to be lossless join. Very briefly explain why the condition is necessary and sufficient. a. Given F: {A B, C, G, H, I), check if A is a candidate key of R. [10 points] H), set of functional dependencies on R(A, [10 points] b. B,A-> C, CG H, CG-, B

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