select
 OD.ITEM_CODE as CODE,
 I.ITEM_NAME as NAME,
 SUM(OD.ORDER_QTY) as SUM_QTY
from
 ORDERS O
inner join
 ORDERS_DTL OD
 on O.ORDER_NO = OD.ORDER_NO
inner join
 WAREHOUSE W
 on O.WH_CODE = W.WH_CODE
left join
 ITEM I
 on OD.ITEM_CODE = I.ITEM_CODE
where
 O.WH_CODE = '100'
group by
 OD.ITEM_CODE,I.ITEM_NAME
order by
 SUM_QTY desc,
 OD.ITEM_CODE desc
;