SQL Server 2005 Get First and Last date for any Month in any Year

Question

I have a stored procedure that has to accept a month as int (1-12) and a year as int. Given those two values, I have to determine the date range of that month. So I need a d

Answer 1

Try this:

Declare @month int, @year int;
Declare @first DateTime, @last DateTime;
Set @month=10;
Set @year=2010;
Set @first=CAST(CAST(@year AS varchar) + '-' + CAST(@month AS varchar) + '-' + '1' AS DATETIME);
Set @last=DATEADD(s,-1,DATEADD(mm, DATEDIFF(m,0,@first)+1,0));

SELECT @first,@last;