Find the Nth Occurrence of a Weekday in A Month


 

DECLARE @ANYdATETIME datetime
SET @ANYdATETIME='20141130' 

SELECT
datediff(week,DateAdd(day, (7+DATEPART(WEEKDAY,@ANYdATETIME) - DatePart(weekday, dateadd(month, datediff(MONTH, 0, @ANYdATETIME),0)))%7 ,dateadd(month, datediff(MONTH, 0, @ANYdATETIME),0) ),@ANYdATETIME)+1  
as Nth_Weekday_OccurrenceInaMonth

 
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