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SUSER_SNAME Function

Posted By: Sarita Patel     Category: SQL Server     Views: 3932

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

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

SUSER_SNAME can be used as a DEFAULT constraint in either ALTER TABLE or CREATE TABLE.



Syntax of SUSER_SNAME Function :

SUSER_SNAME ( [ 'server_user_sid' ] )

server_user_sid is a user's security identification number. It is of type varbinary(85). It is an optional. If you don't specify then it returns information about current user. 

Return type of SUSER_SNAME is a nvarchar(256).




Examples of SUSER_SNAME Function :

Example 1 : Use of SUSER_SNAME function in select clause 

SELECT SUSER_SNAME (0x0105000000000005150000007D3F02A2B97927CFBCECB55FE8030000)

Output
NorthwindUser

Above example returns login name for specified user's security identification number.
  
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Sarita Patel
Sarita Patel author of SUSER_SNAME Function is from United States.
 
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