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A ___________ is an indirect functional dependency, one in which X->Z only by virtue of X->Y and Y->Z.(a) Multivalued Dependencies(b) Join Dependency(c) Trivial Functional Dependency(d) Transitive DependenciesI had been asked this question in examination.The query is from Normalization topic in section Planning Oracle Applications of Oracle

Answer»

The correct choice is (d) Transitive DEPENDENCIES

To explain I would say: Third Normal Form DEALS with something called ‘transitive’ dependencies. This MEANS if we have a primary key A and a non-key domain B and C where C is more dependent on B than A and B is directly dependent on A, then C can be considered transitively dependent on A.



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