How can i join PO with GRPO

Question

Hi,
I make query as belown to join PO with GRPO.I wnat to calculate Quantity from PO to GRPO but in my query it show duplicate record i also use distinct but useless.My query as below.
SELECT T1.DocNum [PO No], T1.DocDate [PO Date], T3.ItemCode, T3.Dscription, T3.U_CostCentre, T3.DocEntry [GRN No], T0.DocDate [GRN Date],T3.Quantity'GRIR Quantity',T2.Quantity 'PO Quantity',
T3.Quantity-T2.Quantity 'Balance Quantity'
FROM OPDN T0 , OPOR T1, POR1 T2, PDN1 T3
WHERE T1.DocEntry = T2.DocEntry
and T0.Docnum = T3.Docentry
and T3.BaseRef  =  T1.DocNum
and T2.ItemCode = T3.ItemCode
and T3.DocDate between [%0] and [%1]
Can any body help in this regards.
Sohail Anwar Ali

Answer 1

Hi Sohail,
As i understand, you want to know till now how much of quantity stills needs  to be delivered, in that case instead of trying joining two tables i would suggest to try this query which gives you
Purchase Order Document No,
Purchase Order Date,
Vendor Name,
Item Code,
Item Description,
Ordered Quantity,
Received Quantity,
Open Quantity.
as the filed OpenQty stores the Quantity yet to receive for that particular Purchase Order. As this approach is much more flexible
Query
SELECT T0.DocNum, T0.DocDate, T0.CardName, T1.ItemCode, T1.Dscription, T1.Quantity,
(T1.Quantity-T1.OpenQty) as "Recevied Quantity",
T1.OpenQty FROM OPOR T0  INNER JOIN POR1 T1 ON T0.DocEntry = T1.DocEntry WHERE T0.DocDate >=[%0] and
T0.DocDate <=[%1]
I hope this helps out your issue
regards,
Shreyas