Question

我正在尝试查明inventory_detail表中是否有任何订单（订单号实际上在inventory_header上），其中loadinfo或者loadload_store值根据extrainfo_stores表中的store_Code字段中根本不存在。< / p>

下面的查询返回一些订单，当我在extrainfo_stores表中查看返回的订单时，我看到该表中的load_store或unload_store中的确切值，所以它显然不起作用...

 SELECT  bh.ord_number, bi.*
 FROM    inventory_header bh
 inner join inventory_detail bi on inventory_id = bh.inventory_id
 WHERE   NOT EXISTS
    (
    SELECT  null 
    FROM    extrainfo_stores d
    WHERE   d.ord_number = bh.ord_number
      and   bi.load_store <> d.store_code
      and   bi.unload_store <> d.store_code
    )

Answer 1

应该是这样的：

SELECT bh.ord_number, bi.*
  FROM inventory_header bh
 inner join inventory_detail bi on inventory_id = bh.inventory_id
 WHERE NOT EXISTS (SELECT null 
                     FROM extrainfo_stores d
                    WHERE d.ord_number = bh.ord_number
                      and (bi.load_store = d.store_code or bi.unload_store = d.store_code))

Answer 2

这是你在找什么？

SELECT bh.ord_number, bi.*
 FROM  inventory_header bh
 join  inventory_detail bi 
   on  inventory_id = bh.inventory_id
 join  extrainfo_stores d
   on  d.ord_number = bh.ord_number
Where bi.load_store   <> d.store_code
   or bi.unload_store <> d.store_code

什么不存在查询不工作

2 个答案: