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GATE-2024-CS1(Forenoon)
January 13, 2025
NTA UGC NET Aug 2024 Paper-2
January 14, 2025
GATE-2024-CS1(Forenoon)
January 13, 2025
NTA UGC NET Aug 2024 Paper-2
January 14, 2025

Database-Management-System

Question 917
Which of the following relations cannot be decomposed into BCNF with a lossless join and dependency-preserving decomposition?
A
R (W, X, Y, Z) {W→X, WX→Y, W→Y, W→Z}
B
R (W, X, Y, Z) {W→X, W→Y, W→Z, X→Y}
C
R (W, X, Y, Z) {W→X, X→Y, X→Z}
D
R (W, X, Y, Z) {W→X, X→Y, Y→Z, Z→W}
Correct Answer: C

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