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What is an ID Dependent entity?

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Anonymous

13y ago
Updated: 4/8/2023

A special case of weak entity where the identifier of the dependent entity includes the identifier of the entity upon which it depends. Example :

PART(PartNumber, PartName, SalesPrice, QuantityOnHand)
COMPANY(CompanyName, City, Country, Volumn)

QUOTATION(PartNumber, CompanyName, Price) - This entity is id-dependent on the two previous entities.

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Haylie Prohaska

Lvl 10
2y ago

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What is an ID-Dependent entity?

A special case of weak entity where the identifier of the dependent entity includes the identifier of the entity upon which it depends. Example :PART(PartNumber, PartName, SalesPrice, QuantityOnHand)COMPANY(CompanyName, City, Country, Volumn)QUOTATION(PartNumber, CompanyName, Price) - This entity is id-dependent on the two previous entities.


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