select
    t1.SALES_DATE AS SAL_DATE
    , t1.SALES_NO AS NO
    , t2.ITEM_CODE AS ITEM_CODE
    , t2.SALES_QTY AS SAL_QTY
    , t2.DELIVERED_QTY AS DEL_QTY
    , CASE
        WHEN DELIVERED_QTY = '0' THEN '未出荷'
        WHEN DELIVERED_QTY <> '0' AND SALES_QTY > DELIVERED_QTY THEN '一部出荷'
        WHEN SALES_QTY = DELIVERED_QTY THEN '出荷済'
      END AS SHIP_STS
from SALES t1
inner join SALES_DTL t2
  on t1.SALES_NO = t2.SALES_NO
order by t1.SALES_DATE desc,t1.SALES_NO asc,t2.ITEM_CODE asc