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
INNER JOIN SALES_DTL
        ON SALES.SALES_NO = SALES_DTL.SALES_NO
ORDER BY
    SALES_DATE DESC,
    SALES.SALES_NO,
    SALES_DTL.ITEM_CODE;