SELECT
    SA.SALES_DATE AS SAL_DATE,
    SA.SALES_NO AS NO,
    SAD.ITEM_CODE AS ITEM_CODE,
    SAD.SALES_QTY AS SAL_QTY,
    SAD.DELIVERED_QTY AS DEL_QTY,
    CASE
      WHEN SAD.DELIVERED_QTY = 0
          THEN '未出荷'
      WHEN SAD.SALES_QTY > SAD.DELIVERED_QTY
          THEN '一部出荷'
      WHEN SAD.SALES_QTY = SAD.DELIVERED_QTY
          THEN '出荷済'
    ELSE NULL
    END AS SHIP_STS
FROM 
    SALES AS SA
    --内部結合
    INNER JOIN SALES_DTL AS SAD
        ON SA.SALES_NO = SAD.SALES_NO
        
WHERE
   SA.SALES_DATE BETWEEN '2024-04-01' AND '2024-04-10'
ORDER BY
    SA.SALES_DATE DESC,
    SA.SALES_NO ASC,
    SAD.ITEM_CODE ASC;