Question

我已经尝试了几天了，我找不到合适的解决方案。

我有两张桌子：

-Adgroups：包含带有uniqueAdgroupID和AdgroupName的广告组列表。该表有重复的名称。

-Adgroup_Campaigns：包含一个广告系列列表，其中包含uniqueCampaignID和table1中的uniqueAdgroupId。

我需要做的是在表Adgroups中查找所有重复的名称，我使用以下查询：

SELECT
    o.[AdGroup_Id], o.[AdGroup]
FROM (
    SELECT [AdGroup], COUNT(*) as intCount
    FROM [dbo].[AdGroup]
    GROUP BY [AdGroup]
    HAVING COUNT(*) > 1
    )
AS d
INNER JOIN [dbo].[AdGroup] o ON o.[AdGroup] = d.[AdGroup]

返回如下列表：

Adgroup_Id   AdGroup      
----------- ----------
1           PRE-MAS--v2-LP2      
2           PRE-MAS--v2-LP2      
5           PRE-MAS--v2-LP2       
6           UNI-A-v2-LP2
8           UNI-A-v2-LP2
10          UNI-A-v2-LP2
16          PRE-UNI-v2-LP2
17          PRE-UNI-v2-LP2
20          PRE-UNI-v2-LP2

现在我在表Adgroup_Campaigns中交叉检查AdGroupId在重复广告组列表中的所有记录，我使用以下查询：

SELECT * FROM 
(
    SELECT
        o.[AdGroup_Id], o.[AdGroup]
    FROM (
        SELECT [AdGroup], COUNT(*) as intCount
        FROM [dbo].[AdGroup]
        GROUP BY [AdGroup]
        HAVING COUNT(*) > 1
        )
    AS d
    INNER JOIN [dbo].[AdGroup] o ON o.[AdGroup] = d.[AdGroup]
)
AS x INNER JOIN [dbo].[AdGroupCampaignMapper] t
ON t.[AdGroup_Id] = x.[AdGroup_Id]

返回如下列表：

Adgroup_Id   AdGroup         Campaign_Id      
----------- ---------        ------------
1           PRE-MAS--v2-LP2  1    
2           PRE-MAS--v2-LP2  3    
5           PRE-MAS--v2-LP2  5     
6           UNI-A-v2-LP2     6
8           UNI-A-v2-LP2     7
10          UNI-A-v2-LP2     8
16          PRE-UNI-v2-LP2   9
17          PRE-UNI-v2-LP2   10
20          PRE-UNI-v2-LP2   11

所以我需要的是一个实际更新表Adgroup_Campaigns中字段Adgroup_Id的查询，因此每组重复项都将Adgroup_Id作为该组的第一个ID，如下所示：

Adgroup_Id   AdGroup         Campaign_Id      
----------- ---------        ------------
1           PRE-MAS--v2-LP2  1    
1           PRE-MAS--v2-LP2  3    
1           PRE-MAS--v2-LP2  5     
6           UNI-A-v2-LP2     6
6           UNI-A-v2-LP2     7
6           UNI-A-v2-LP2     8
16          PRE-UNI-v2-LP2   9
16          PRE-UNI-v2-LP2   10
16          PRE-UNI-v2-LP2   11

非常感谢任何帮助。

Answer 1

您可以使用内部联接的更新

update  a 
set  AdGroupCampaignMapper.Adgoup_Id = t.min_id
FROM  [dbo].[AdGroupCampaignMapper]  as a
INNER JOIN ( 
   SELECT  [AdGroup] , min([AdGroup_Id]) min_id, COUNT(*) as intCount
        FROM [dbo].[AdGroup]
        GROUP BY [AdGroup]
      HAVING COUNT(*) > 1  ) t on . t.AdGroup = a.AdGroup

根据表2中的重复更新表1中的记录

1 个答案: