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An entity set that has a primary key is called as ___________

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An entity set that has a primary key is called as ___________

(a) Strong entity set

(b) Weak entity set

(c) Complete entity set

(d) None of the mentioned

I had been asked this question in an interview.

My enquiry is from Entity Relationship Diagrams topic in chapter Database Design and the ER Model of RDBMS

1 Answer

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Best answer
The correct option is (a) Strong entity set

Easy explanation: An entity set that has a primary key is called as a strong entity set. An entity set that does not have a primary key is called a weak entity set.

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