tsql: How to retrieve the last date of each month between given date range

Question

I have two date for example 08/08/2013 and 11/11/2013 and I need last date of each month starting from August to November in a table so that i can iterate over the table to

Answer 1

You can use a recursive CTE to do this, note the MAXRECURSION OPTION prevents an infinite loop:

DECLARE @StartDate DATE = '2013-08-08'
DECLARE @EndDate DATE = '2013-11-11'

;WITH dateCTE
AS
(
    SELECT CAST(DATEADD(M, 1,DATEADD(d, DAY(@StartDate) * -1, @StartDate)) AS DATE) EndOFMonth
    UNION ALL 
    SELECT CAST(DATEADD(M, 2,DATEADD(d, DAY(EndOFMonth) * -1, EndOFMonth)) AS DATE) 
    FROM dateCTE
    WHERE EndOFMonth < DATEADD(d, DAY(@EndDate) * -1, @EndDate)

)
SELECT *
FROM dateCTE
OPTION (MAXRECURSION 30);

This returns

EndOFMonth
----------
2013-08-31
2013-09-30
2013-10-31