SQL Update

[Henry Olive 5]

I wish everyone a healthy day
 

I'm getting multiple rows in singleton select err.msg. 

UPDATE ORDERS O SET
O.DELVTOTAL= (SELECT(OD.QTY - OD.REMQTY) * OD.UPRICE FROM ORDETAIL OD

WHERE O.ID=OD.ID)
WHERE EXISTS (SELECT 1 FROM ORDETAIL OD WHERE O.ID = OD.ID 

AND O.STATUS='Partial Delivery')

what is wrong ? 

Thank You

[Attila Kovacs 629]

Maybe a missing sum?

 

 (SELECT SUM((OD.QTY - OD.REMQTY) * OD.UPRICE) FROM ORDETAIL OD WHERE O.ID=OD.ID)

 

 

[Henry Olive 5]

Yes, Thank so much Attila