ค้นหา Outlier

SELECT
	-- Calculate TotalRideHours using SUM() and DATEDIFF()
  	___(___(___, StartDate, EndDate))/ 3600 AS TotalRideHours,
    -- Select the DATE portion of StartDate
  	___(___, StartDate) AS DateOnly,
    -- Select the WEEKDAY
  	___(___, ___(___, StartDate)) AS DayOfWeek 
FROM CapitalBikeShare
-- Only include Saturday
WHERE ___(___, StartDate) = 'Saturday' 
GROUP BY CONVERT(DATE, StartDate);