Advertisements
Advertisements
Question
Which of the following statements is FALSE about keys in a relational database?
Options
Any candidate key is eligible to become a primary key.
A primary key uniquely identifies the tuples in a relation.
A candidate key that is not a primary key is a foreign key.
A foreign key is an attribute whose value is derived from the primary key of another relation.
MCQ
Advertisements
Solution
A candidate key that is not a primary key is a foreign key.
Explanation:
A candidate key that is not a primary key is an Alternate key.
shaalaa.com
Keys in a Relational Database
Is there an error in this question or solution?
