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 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,
    SALES_DTL
ORDER BY
    SALES_DATE DESC,
    SALES.SALES_NO ASC,
    ITEM_CODE ASC