Question

这是一个令人头疼的问题（对我而言）......

我有两张表A和B. A包含产品说明，B包含产品代码，数量和帐户。这里的皱纹是B在产品代码上有父子关系。

我想要做的是将结果集放在一起，我看到Account，Product，Description和Qty，其中一个产品数量= 0，除非产品说明中有关键字（其数量为I）不关心）。

所以，现在是我的查询：

SELECT Bp.Account, Bp.Product, A.Description, Bp.Qty FROM B 
AS Bp JOIN A as Prod  ON (Bp.Product = Prod.Product)  
WHERE EXISTS (Select * from B AS Bc 
              WHERE Bp.Account = Bc.Account
              AND Qty = 0)

这会返回一个非常好的结果集：

Account  Product Description Qty
ABC      XYZ     DESC-BLAH   1
ABC      XYY     DESC-DEE    0
ABC      ZXY     DESC-BILP   1
BDE      XAZ     DESC-OOPS   1
BDE      XYY     DESC-DEE    0
BDE      ZXY     DESC-BLIP   1

所以我想说我想从我的结果集中排除DESC-OOPS以及与之相关的所有产品。我想看看：

Account  Product Description Qty
ABC      XYZ     DESC-BLAH   1
ABC      XYY     DESC-DEE    0
ABC      ZXY     DESC-BILP   1

这可以在一个查询中完成吗？

非常感谢提前！

Answer 1

也许你可以添加到你的WHERE标准：

SELECT Bp.Account, Bp.Product, A.Description, Bp.Qty FROM B 
AS Bp JOIN A as Prod  ON (Bp.Product = Prod.Product)  
WHERE EXISTS (Select * from B AS Bc 
              WHERE Bp.Account = Bc.Account
              AND Qty = 0)
  AND Bp.ACCOUNT NOT IN (SELECT ACCOUNT FROM Table WHERE Description = 'DESC-OOPS'

我不确定为什么这对你不起作用，但也许：

SELECT *
FROM (SELECT Bp.Account, Bp.Product, A.Description, Bp.Qty 
      FROM B AS Bp 
      JOIN A as Prod  
         ON (Bp.Product = Prod.Product)  
      WHERE EXISTS (Select * from B AS Bc 
                  WHERE Bp.Account = Bc.Account
                  AND Qty = 0)
      )sub
WHERE ACCOUNT NOT IN (SELECT ACCOUNT FROM Table WHERE Description = 'DESC-OOPS'

跨表SQL查询，以根据关键字从结果记录中排除

1 个答案: