webrunner

Easy enough to find out ...

CREATE TABLE #T(userid INT)

INSERT INTO #T

SELECT 1 UNION ALL

SELECT 1 UNION ALL

SELECT 2 UNION ALL

SELECT 3 UNION ALL

SELECT 4 UNION ALL

SELECT 5 UNION ALL

SELECT 6 UNION ALL

SELECT 7

SELECT COUNT(DISTINCT userid) AS '(1)' FROM #T

SELECT DISTINCT COUNT(userid)AS '(2)' FROM #T

Results:

(1) (2)

7 8