SQL Server:VÆLG kun rækkerne med MAX(DATE)

Hvis rownumber() over(...) er tilgængelig for dig ....

select OrderNO,
       PartCode,
       Quantity
from (select OrderNO,
             PartCode,
             Quantity,
             row_number() over(partition by OrderNO order by DateEntered desc) as rn
      from YourTable) as T
where rn = 1