SELECT
    SALES_DATE AS SAL_DATE,
    SALES.SALES_NO AS NO,
    ITEM_CODE,
    SALES_QTY AS SAL_QTY,
    DELIVERED_QTY AS DEL_QTY,
    CASE 
        WHEN SALES_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 
INNER JOIN SALES_DTL ON SALES.SALES_NO = SALES_DTL.SALES_NO
ORDER BY
SAL_DATE DESC,
NO ASC,
ITEM_CODE ASC