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A relation is in ____________ if an attribute of a composite key is dependent on an attribute of other composite key.(a) 2NF(b) 3NF(c) BCNF(d) 1NFI had been asked this question in exam.I want to ask this question from Algorithms for Decomposition topic in division Normalization of Database Management

Answer»

The correct option is (B) 3NF

For explanation: A relation is in 3 NF if an attribute of a COMPOSITE key is DEPENDENT on an attribute of other composite key. (If an attribute of a composite key is dependent on ANATTRIBUTE of other composite key then the relation is not in BCNF, hence it has to bedecomposed.).



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