SQL Syntax Reference : USER
 
USER
Remarks
The USER keyword returns the current user name (such as Master) for each row returned by the SELECT restriction.
Example
The following examples return the user name from the course table.
SELECT USER FROM course
-- returns 145 instances of Master (the table contains 145 rows)
SELECT DISTINCT USER FROM course
-- returns 1 instance of Master
See Also
SELECT
SET SECURITY