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DECLARE @STARTDATE DATE='01/JAN/2014'
DECLARE @ENDDATE DATE='01/MAR/2014'
;WITH CTE as
(
SELECT CAST(@STARTDATE AS DATE) as [DAYS]
UNION ALL
SELECT DATEADD(DAY,1,[DAYS]) [DAYS]
FROM CTE
WHERE [DAYS] < CAST(@ENDDATE AS DATE)
)
SELECT DISTINCT COUNT([DAYS]) OVER(PARTITION BY DATENAME(WEEKDAY,[DAYS])) CNT,
DATENAME(WEEKDAY,[DAYS]) WD
FROM CTE
WHERE DATENAME(WEEKDAY,[DAYS]) = 'SATURDAY' OR DATENAME(WEEKDAY,[DAYS]) = 'SUNDAY'
ORDER BY DATENAME(WEEKDAY,[DAYS])
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