एक इन, एक आउट

-- Create SumRideHrsSingleDay
___ ___ SumRideHrsSingleDay (___ date)
-- Specify return data type
___ ___
AS
-- Begin
___
RETURN
-- Add the difference between StartDate and EndDate
(SELECT SUM(DATEDIFF(second, StartDate, EndDate))/3600
FROM CapitalBikeShare
 -- Only include transactions where StartDate = @DateParm
WHERE ___(StartDate AS ___) = ___)
-- End
___