Database - Data Modeling with ER Model - Discussion

Discussion :: Data Modeling with ER Model - General Questions (Q.No.9)

9. 

Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity?

[A]. Weak entity
[B]. Strong entity
[C]. ID-dependent entity
[D]. ID-independent entity

Answer: Option C

Explanation:

No answer description available for this question.

Navneet Yadav said: (Aug 8, 2011)  
Please explain it.

Reena said: (Dec 17, 2011)  
What is the meaning of ID-dependent entity, & ID-independent entity please explain.

Raju Royal.Sp said: (Jul 3, 2013)  
@Reena.

ID means identifier so its full name is identifier -dependent entity.

Actually the given question is observed clearly which is identifies to the another entity that's why ID-dependent entity is the correct answer.

Kirti Wargantiwar said: (Sep 11, 2013)  
Please tell me what is mean by identifier dependent and independent entity.

Durge said: (Mar 2, 2015)  
Please explain what is id-dependent and what is id-independent entity?

Enza said: (Jun 28, 2018)  
It should be a weak entity.

Zunaid S said: (Aug 17, 2018)  
ID-dependent entity: entity (child) whose Identifier depends (includes) another identifier.

For example, Building:Apartment -> for describing an apartment you need to include building name and all.

Weak Entity: existence depends on another entity.

Eg: Model: Car.

All Id-dependent entity are weak, and vice-versa is not true.

Carraa said: (Jan 9, 2020)  
What is the difference between ID-dependent and ID--independent entity?

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