Open In App

UGC-NET | NTA UGC NET 2019 June – II | Question 7

Like Article
Like
Save
Share
Report

Which of the following key constraints is required for the functioning of the foreign keys in the context of a relational database?
(A) Unique Key
(B) Primary Key
(C) Candidate Key
(D) Check key


Answer: (B)

Explanation: A foreign key is a key whose values depend on the primary key of a relation. So for the functioning of a foreign key in the context of a relational database we need a primary key.


Quiz of this Question
Please comment below if you find anything wrong in the above post


Last Updated : 02 Dec, 2021
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads