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1. |
Let the set of functional dependencies F = {QR → S, R → P, S → Q} hold on a relation schema X = (PQRS). X is not in BCNF. Suppose X is decomposed into two schemas Y and Z, where Y = (PR) and Z = (QRS).Consider the two statements given below.I. Both Y and Z are in BCNFII. Decomposition of X into Y and Z is dependency preserving and losslessWhich of the above statements is/are correct? |
A. | Both I and II |
B. | I only |
C. | II only |
D. | Neither I nor II |
Answer» D. Neither I nor II | |