GATE | CS | 2002 | Databases | Normal Forms | Question 49

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Relation R is decomposed using a set of functional dependencies, F and relation S is decomposed using another set of functional dependencies G. One decomposition is definitely BCNF, the other is definitely 3NF, but it is not known which is which. To make a guaranteed identification, which one of the following tests should be used on the decompositions? (Assume that the closures of F and G are available).

Dependency-preservation

Lossless-join

BCNF definition

3NF definition

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