Which of the following constraint does not enforce uniqueness?

SQL Server - Quiz(MCQ)

UNIQUE

Primary key

Foreign key

None of the above

Correct Answer : Foreign key

Explanation : FOREIGN KEY constraints identify and enforce the relationships between tables.

Recently Updated in SQL Server Questions

Which of the following system database occupies more space and memory?

Msdb

Model

Master

Tempdb

Correct Answer : Master

Explanation : The master database records all of the system level information for a SQL Server system.

Which database is used as template for all databases?

Master

Tempdb

Northwind

Model

Correct Answer : Model

Explanation : When a CREATE DATABASE statement is issued, the first part of the database is created by copying in the contents of the model database.

Which of the following database is used by SQL Server Agent?

Pubs

Msdb

Model

Tempdb

Correct Answer : Msdb

Explanation : The msdb database is used by SQL Server Agent for scheduling alerts and jobs, and recording operators.

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