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USER_ID Function

Posted By: Sarita Patel     Category: SQL Server     Views: 12906

This article explains about USER_ID function in sql server with examples.

USER_ID returns login identification name from a user's security identification number (SID).

USER_ID can be used in the select list, in the WHERE clause, and anywhere an expression is allowed. 

Syntax of USER_ID Function :

USER_ID ( [ 'user' ] )

user is a username. It is of type nchar. It is an optional. If you don't specify the current user is assumed. 

Return type of USER_ID is a smallint.

Examples of USER_ID Function :

Example 1 : Use of USER_ID function in select clause 



Above example returns NorthwindUser user's database id number.


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Sarita Patel
Sarita Patel author of USER_ID Function is from United States.
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