SELECT
 DTL.ITEM_CODE as CODE,
 ITEM_NAME as NAME,
 DTL.SUMQ as SUM_QTY
FROM ORDERS
LEFT JOIN WAREHOUSE
 ON WAREHOUSE.WH_CODE = ORDERS.WH_CODE
Inner JOIN (
 SELECT
  ORDER_NO, 
  ITEM_CODE,
  SUM(ORDER_QTY) as SUMQ
  FROM ORDERS_DTL
  GROUP BY ITEM_CODE
  HAVING SUMQ >= 50
 )DTL
 ON DTL.ORDER_NO  = ORDERS.ORDER_NO 
LEFT JOIN ITEM
 ON DTL.ITEM_CODE = ITEM.ITEM_CODE
Where WH_NAME = '浦和倉庫'
 ORDER BY SUM_QTY DESC ,CODE DESC