จำนวนธุรกรรมต่อวัน

SELECT
  -- Select the date portion of StartDate
  ___(___, StartDate) as StartDate,
  -- Measure how many records exist for each StartDate
  ___(___) as CountOfRows 
FROM CapitalBikeShare 
-- Group by the date portion of StartDate
___ BY ___(___, StartDate)
-- Sort the results by the date portion of StartDate
___ BY ___(___, StartDate);