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R (A,B,C,D) is a relation. Which of the following does not have a lossless join dependency preserving BCNF decomposition?(a) A->B, B->CD(b) A->B, B->C, C->D(c) AB->C, C->AD(d) A->BCDI have been asked this question in an interview for job.I'm obligated to ask this question of Algorithms for Decomposition in portion Normalization of Database Management

Answer»

Correct ANSWER is (d) A->BCD

Explanation: This relation GIVES a relation WITHOUT any loss in the values.



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