Identify incorrect statement about primary keys

Q: Identify incorrect statement about primary keys

This is a Software Engineering Fundamentals interview question from Bitkernel for Software Engineer roles. View the full question and solution on PracHub.

Q: How do I approach Software Engineering Fundamentals interview questions?

Software Engineering Fundamentals questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master software engineering fundamentals interviews.

Question

In a relational database, which of the following statements about primary keys is incorrect?

Options:

A. Every column that is part of the primary key must be NOT NULL.
B. Every column that is part of the primary key must be unique.
C. A table can define only one primary key.
D. Primary keys can be defined at either the table level or the column level.

Identify incorrect statement about primary keys

Solution

Comments (0)