SELECT
    S1.ITEM_CODE AS CODE
    ,IFNULL(I.ITEM_NAME, 'NULL') AS NAME
    ,S1.SUM_QTY
FROM
(
    SELECT
        DTL.ITEM_CODE
        ,SUM(DTL.ORDER_QTY) AS SUM_QTY
    FROM ORDERS O
    INNER JOIN WAREHOUSE W
       ON W.WH_CODE = O.WH_CODE
      AND W.WH_NAME = '浦和倉庫'
    LEFT JOIN ORDERS_DTL DTL
      ON DTL.ORDER_NO = O.ORDER_NO
    GROUP BY DTL.ITEM_CODE
) S1
LEFT JOIN ITEM I
  ON I.ITEM_CODE = S1.ITEM_CODE
WHERE S1.SUM_QTY >= 50
ORDER BY S1.SUM_QTY DESC, S1.ITEM_CODE DESC