SUSER_NAME() vs SUSER

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SUSER_NAME() vs SUSER_SNAME()

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Mikey01

Posted Tuesday, April 12, 2011 5:40 AM

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Any reason to use one of the following over the other to return the user currently modifying data?

SELECT SUSER_NAME()
SELECT SUSER_SNAME()

The documentation for SUSER_NAME() says "SUSER_NAME returns a login name only for a login that has an entry in the syslogins system table.".
SUSER_SNAME() documentation makes no reference to this does this imply that SUSER_NAME is more limited in some way than SUSER_SNAME?

Post #1091981

Lowell

Posted Tuesday, April 12, 2011 6:52 AM

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I think you are supposed to use SUSER_SNAME() in most situations.

i believe the difference is SUSER_SNAME() would return a domain\username for those people who are not explicitly on the server, but only get access through an inherited role;

so if you grant a windows role access, SUSER_SNAME() would return results, but SUSER_NAME() is blank, because that user is not explicitly in the sys.server_principals table, right?

Lowell

--There is no spoon, and there's no default ORDER BY in sql server either.
Actually, Common Sense is so rare, it should be considered a Superpower. --my son

Post #1092027

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