1.

Which forms has a relation that possesses data about an individual entity?(a) 2NF(b) 3NF(c) 4NF(d) 5NFI have been asked this question in a job interview.My question is taken from Multivalued Dependencies topic in division Normalization of Database Management

Answer»

Right choice is (c) 4NF

Best explanation: A Table is in 4NF if and only if, for every ONE of its non-trivial multivalued DEPENDENCIES X \twoheadrightarrow Y, X is a superkey—that is, X is EITHER a candidate key or a superset THEREOF.



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