find records from previous x days?

Question

How can I come up with a stored procedure that selects results for past 30 days?

where MONTH(RequestDate) > 6 and DAY(RequestDate) >= 10 
and MONTH(Req         


        

Answer 1

SELECT *
FROM Table
WHERE myDate >= DATEADD(MONTH, -1, GETDATE())

doing it by month is different than doing it in 30-day blocks. Test this out as follows...

declare @mydate smalldatetime
set @mydate = '07/6/01'

select @mydate
select DATEADD(month, 2, @mydate), DATEDIFF(day, DATEADD(month, 2, @mydate), @mydate)
select DATEADD(month, 1, @mydate), DATEDIFF(day, DATEADD(month, 1, @mydate), @mydate)
select DATEADD(month, -1, @mydate), DATEDIFF(day, DATEADD(month, -1, @mydate), @mydate)
select DATEADD(month, -2, @mydate), DATEDIFF(day, DATEADD(month, -2, @mydate), @mydate)
select DATEADD(month, -3, @mydate), DATEDIFF(day, DATEADD(month, -3, @mydate), @mydate)

Here are the results:

2001-07-06 00:00:00
2001-09-06 00:00:00   |   -62
2001-08-06 00:00:00   |   -31
2001-06-06 00:00:00   |   30
2001-06-06 00:00:00   |   30
2001-05-06 00:00:00   |   61
2001-04-06 00:00:00   |   91