从不同的表和不同的数据库中选择特定的列 [英] selecting specific columns from different tables and different database

问题描述

我有 3 个数据库

  - ECPNWEB
  - ECPNDB
  - ECPNPOS

还有 3 张桌子

  - account -> ECPNWEB
  - branch -> ECPNDB
  - terminal -> ECPNPOS

以及具有多列的表格

  - account (accntid,managedby,account,first,last,....)
  - branch(branch_code,company_code,name,distributor,cutoff,....)
  - terminal(retail,brand,model,serial,status,....)

我想要做的就是获取特定的列.，我想要的输出是:

All I want to do is to get the specific column., my desired output is:

 managedby for table account and ECPNWEB database
 name for table branch and ECPNDB database
 model for table terminal and ECPNPOS database..

像这样

 |managedby|name|model

提前致谢

推荐答案

1. sp_addlinkedserver() 正是您所需要的
2. exec sp_addlinkedserver @server = '*server_name*'//---用你的替换 *server_name*
3. 它看起来像这样:例如select * from [server].[database].[schema].[table]
4. 查看此链接 http://msdn.microsoft.com/en-我们/图书馆/ms190479.aspx

1. sp_addlinkedserver() is what you need
2. exec sp_addlinkedserver @server = '*server_name*' //---replace *server_name* with yours
3. it will look like this: e.g. select * from [server].[database].[schema].[table]
4. Check out this link http://msdn.microsoft.com/en-us/library/ms190479.aspx

我不关心它，但试试这个并告诉我什么是 o/p.比如你可以试试这种方式

I'm not about it but try this and tell me what is the o/p. For example you can try this way

SELECT firstdb.*, seconddb.*
FROM Server1.Database1.dbo.myTable AS firstdb
INNER JOIN Server2.Database2.dbo.myTable AS seconddb
   ON firstdb.id = seconddb.id

试试这个，不确定这会给你想要的结果，没有测试......用你的替换 *column_name*

try this,not sure this will give u desired result, not tested... replace *column_name* with yours

SELECT account.managedby, branch.name, terminal.model FROM ECPNWEB.dbo.account, ECPNDB.dbo.branch, ECPNPOS.dbo.terminal AS a INNER JOIN account ON account.(column_name)=branch.(column_name)  INNER JOIN terminal ON account.(column_name)=terminal.(column_name)

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