Database - Data Modeling with ER Model - Discussion
Discussion Forum : 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?
Discussion:
8 comments Page 1 of 1.
Carraa said:
6 years ago
What is the difference between ID-dependent and ID--independent entity?
Zunaid S said:
7 years ago
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.
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.
(1)
Enza said:
7 years ago
It should be a weak entity.
Durge said:
1 decade ago
Please explain what is id-dependent and what is id-independent entity?
Kirti wargantiwar said:
1 decade ago
Please tell me what is mean by identifier dependent and independent entity.
Raju Royal.SP said:
1 decade ago
@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.
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.
Reena said:
1 decade ago
What is the meaning of ID-dependent entity, & ID-independent entity please explain.
Navneet Yadav said:
1 decade ago
Please explain it.
(1)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers