select
SALES_DATE as SAL_DATE,
SALES.SALES_NO as NO,
ITEM_CODE as ITEM_CODE,
SALES_QTY as SAL_QTY,
DELIVERED_QTY as DEL_QTY,
CASE
    WHEN DELIVERED_QTY = 0 THEN '未出荷'
    WHEN SALES_QTY > DELIVERED_QTY THEN '一部出荷'
    WHEN SALES_QTY = DELIVERED_QTY THEN '出荷済'
END AS SHIP_STS
from
SALES
left join
SALES_DTL
on
SALES.SALES_NO = SALES_DTL.SALES_NO
ORDER BY SAL_DATE DESC, SALES.SALES_NO ASC, ITEM_CODE ASC;