这个简单的UPDATE FROM查询中的错误在哪里？

Question

这应该非常简单,但我想要做到这一点,因为我正在对一个实时数据库进行更改(它已备份).

我从CSV文件中导入了一些列值到数据库表.

现在我只想从导入的源表(查询中的S)更新目标表(查询中的T).

我收到错误: The multi-part identifier "T.account_manager_id" could not be bound.

update DADatabaseMarch2012.dbo.Campaign

set 
    T.[account_manager_id]=S.[account_manager_id]
   ,T.[campaign_status_id]=S.[campaign_status_id]
   ,T.[ad_manager_id]=S.[ad_manager_id]
   ,T.[advertiser_id]=S.[advertiser_id]
from 
    [zMarch12CampaignsRestore].[dbo].[March12Eom_Campaigns] S
    inner join DADatabaseMarch2012.dbo.Campaign T ON S.id = T.id

Answer 1

以这种方式编写,使用别名作为UPDATE的目标.

update T

set 
    [account_manager_id]=S.[account_manager_id]
   ,[campaign_status_id]=S.[campaign_status_id]
   ,[ad_manager_id]=S.[ad_manager_id]
   ,[advertiser_id]=S.[advertiser_id]
from 
    [zMarch12CampaignsRestore].[dbo].[March12Eom_Campaigns] S
    inner join DADatabaseMarch2012.dbo.Campaign T ON S.id = T.id