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

DECLARE @tmpTable table (LastDates DATE);
DECLARE @startDate DATE = '01/01/2012'; --1 Jan 2012
DECLARE @endDate DATE = '05/31/2012';   --31 May 2012
DECLARE @tmpEndDate DATE;

SET @startDate = DATEADD(s,-1,DATEADD(mm, DATEDIFF(m,0,@startDate)+1,1));
SET @tmpEndDate = DATEADD(DAY, 1, @endDate);

WHILE (@startDate <= @tmpEndDate)
BEGIN   
    INSERT INTO @tmpTable (LastDates) values (DATEADD(DAY, -1, @startDate));
    SET @startDate = DATEADD(MONTH, 1, @startDate);
END

SELECT [LastDates] FROM @tmpTable;

Output:

Example: 1

@startDate DATE = '01/01/2012'; --1 Jan 2012
@endDate DATE = '05/31/2012';   --31 May 2012

LastDates
----------
2012-01-31
2012-02-29
2012-03-31
2012-04-30
2012-05-31

Example: 2

@startDate DATE = '11/01/2011'; --1 Nov 2011
@endDate DATE = '03/13/2012';   --13 Mar 2012

LastDates
----------
2011-11-30
2011-12-31
2012-01-31
2012-02-29