get data only for current month

I have a table with orders data that has the next 3 columns:


sample data (same order as above):

2012-04-25 00:00:00      2012-04-26 00:00:00      2012-04-24 00:00:00.000
2012-04-26 00:00:00      2012-04-30 00:00:00      2012-04-27 00:00:00.000
2012-04-30 00:00:00      2012-04-30 00:00:00      2012-04-27 00:00:00.000
2012-05-03 00:00:00      2012-05-03 00:00:00      2012-05-01 00:00:00.000
2012-05-04 00:00:00      2012-05-04 00:00:00      2012-05-01 00:00:00.000
2012-05-07 00:00:00      2012-05-08 00:00:00      2012-05-01 00:00:00.000
2012-05-08 00:00:00      2012-05-09 00:00:00      2012-05-08 00:00:00.000
2012-05-09 00:00:00      2012-05-09 00:00:00      2012-05-04 00:00:00.000

that determines whether an order will ship late.
I would like to retrieve only the orders that are going to be late for the current month since as right now, all months are being retrieved. Just need to retrieve the late orders for the current month

Is this something I could get help with? I am using MS SQL Server 2000

Thank you much.
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Kyle AbrahamsSenior .Net DeveloperCommented:
add this to your where clause:

-- current month
datepart(mm, desired_ship_date) = datepart(mm,getdate())

-- is late?
sched_finish_date > desired_ship_date
metropiaAuthor Commented:
actually i take that back, can it look to the last 30 days, using current date as stating point?

Kyle AbrahamsSenior .Net DeveloperCommented:
-- last 30 days.
desired_ship_date > dateadd(d, getdate(), -30)
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metropiaAuthor Commented:
I have it like this:

and desired_ship_date > dateadd(d, getdate(), -30)

but I get an error:

Msg 8116, Level 16, State 1, Line 1
Argument data type datetime is invalid for argument 2 of dateadd function.
Kyle AbrahamsSenior .Net DeveloperCommented:
sorry, I inversed:

-- 30 days ago, at midnight.
desired_ship_date >= dateadd(dd,datediff(dd,0,Getdate())-30,0)
--one second before midnight for shipments later today
desired_ship_date  <= (dateadd(dd, datediff(dd,0,Getdate()),0)- 1)+ '23:59:59'
metropiaAuthor Commented:
would you be able to explain to me what the new clauses are doing so that i can better understand?

Thanks a lot.
Kyle AbrahamsSenior .Net DeveloperCommented:
there was actually a slight error:

use these:

-- 30 days ago, at midnight.
desired_ship_date >= dateadd(dd,datediff(dd,0,Getdate())-30,0)

--one second before midnight for shipments later today
desired_ship_date  <= (dateadd(dd, datediff(dd,0,Getdate()),0))+ '23:59:59'

Run this to get back dates:

SELECT     DATEADD(dd, DATEDIFF(dd, 0, GETDATE()) - 30, 0) AS minDate, DATEADD(dd, DATEDIFF(dd, 0, GETDATE()), 0) + '23:59:59' AS maxDate

The reason for these are because of time stamps.  

If you run the query at 15:00 and there is a later shipdate today (say 17:00) you won't pull that in your query.

to get around that we set the time to midnight of the minDate and and 23:59:59 of the max date to pull back everything in those dates.

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