Re: AYUDA EN CONSULTA

Intenta así:

SELECT DISTINCT 
T0.[DocNum], 
T0.[CardName], 
T2.[ItemCode], 
T2.[Dscription], 
T2.[Quantity], 
T2.[OpenQty], 
T3.[OnHand], 
(T3.[IsCommited])AS'Comprometido', 
T4.[OnOrder], 
T3.[OnOrder], 
T0.[DocCur], 
T2.[Price], 
T2.[OpenSum], 
T2.[OpenSumFC], 
T2.[ShipDate], 
(T1.[firstName]+' '+T1.[lastName])AS'Titular', 
T0.[DocDate]
FROM OPOR T0 
LEFT JOIN OHEM T1 ON T0.[OwnerCode] = T1.[empID] 
left join POR1 T2 ON T0.DOCENTRY=T2.DOCENTRY
INNER JOIN OITM T3 ON T2.ItemCode = T3.ItemCode 
INNER JOIN OITW T4 ON T3.ItemCode = T4.ItemCode
WHERE T0.[DocStatus] = 'O' AND  T2.[LineStatus] = 'O'

Saludos

Alessandro.