Partial Dependencyis just one of the sort of useful dependency that occurs when primary essential should be the candidate crucial and also non prime attribute those depens on the subset/component of candidays vital (i.e more than one main key).

You are watching: A dependency of one nonprime attribute on another nonprime attribute is a partial dependency.

So attempt to understand partial dependency by following instance :

Seller(Id, Product, Price)

Candidate Key :Id, ProductNon prime attribute :Price

Here Price attribute just relies on Product attributewhich is a subcollection of candiday vital,ButNot the totality candidate key(Id, Product).It is referred to as partial dependency.

SoProduct->Priceis partial dependency.


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answeredNov 14, 2019AbhijitJ38.6k points
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