Open Vendor Items by Date

Question

Hi,
We want to be able to produce a list of open items that have been on order from the vendor for more than three months.
I'm trying to write a query but I'm not sure how to handle the date range. I think I have the first part correct, as it seems to be returning the proper information. Now I just need to narrow it down by date.
SELECT
T0.ItemCode,
T0.OnHand,
T0.OnOrder,
T0.CardCode,
T1.DocNum,
T1.ItemCode,
T1.OpenQty,
T1.LineStatus,
T2.DocNum
FROM OITM T0  INNER JOIN POR1 T1 ON T0.ItemCode = T1.ItemCode
INNER JOIN OPOR T2 ON T1.DocEntry = T2.DocEntry
WHERE T1.LineStatus = 'O'
What is the easiest way to tell this query to only list items that have been open longer than 3 months?
EDIT:
I've added the following to the query WHERE
DATEDIFF(month, T2.DocDate, GETDATE()) > 3
Am I doing this properly or is the DATEDIFF function not going to return the actual number of months between dates?
Edited by: Steve Blake on Jun 24, 2008 3:30 PM
Edited by: Steve Blake on Jun 24, 2008 3:35 PM

Answer 1

Steve,
Using the DATEDIFF I am cheching for 90 days prior.
SELECT T0.ItemCode, T0.OnHand, T0.OnOrder, T0.CardCode, T1.OpenQty, T1.LineStatus, T2.DocNum, T2.DocDate
FROM OITM T0  INNER JOIN POR1 T1 ON T0.ItemCode = T1.ItemCode
INNER JOIN OPOR T2 ON T1.DocEntry = T2.DocEntry
WHERE T1.LineStatus = 'O' AND  DATEDIFF(Day, T2.DocDate, GETDATE()) > 90
Suda