Q. 41 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 and Z where Y = (PR) and Z = (QRS). Consider the two statements given below:
- I. Both Y and Z are in BCNF
- II. Decomposition of X into Y and Z is dependency preserving and a lossless.
Which of the above statements is/are correct?
(A) I only
(B) Neither I nor II
(C) Both I and II
(D) II only
Answer: (D)
Explanation:
