Question

我正在尝试对远程服务器实施一波更新。这是我正在使用的查询：

  update openquery(portal_mysql2, 'select * from memberstest_SL')
  set fte_actual=  (select [Full-time_enrollment]
                    FROM [BIDEV].[dbo].[TBL_IPEDS_HISTORY_NEW]
                    inner join openquery(Portal_mysql2, ' select * from memberstest_SL') on cast(unitid as varchar) = Right(nces_agencyid, 6) 
                    where [year] = Year(GetDate())-2 
                      and [Full-time_enrollment] <> '0' 
                      and [Full-time_enrollment] is not null 
                      and cast(unitid as varchar) = Right(nces_agencyid, 6)
                    )

这将返回错误：

子查询返回了多个值

这是有道理的，因为我尝试使用源表中的相应值更新多个记录。

任何人都知道如何实现这一目标？

Answer 1

请尝试使用类似的东西：

update qe
set    fte_actual = Full-time_enrollment
from   openquery(portal_mysql2, 'select * from memberstest_SL') qe
       inner join [BIDEV].[dbo].[TBL_IPEDS_HISTORY_NEW] tab on CAST(unitid as varchar) = RIGHT(nces_agencyid, 6) 
where year = YEAR(GETDATE()) - 2 
 and  ISNULL(Full-time_enrollment, '0') != '0'  
 and  CAST(unitid as varchar) = RIGHT(nces_agencyid, 6)

更新远程服务器表

1 个答案: