SQL Server 跨數據庫查詢數據的方法

需求

兩個服務器上對應的SQL Server數據庫服務，關聯兩張表查詢數據。

單表查詢

select * from OPENDATASOURCE('SQLOLEDB','Data Source=遠程實列名;User ID=sa;Password=密碼').庫名.dbo.表名 

例如：

select * from OPENDATASOURCE('SQLOLEDB','Data Source=192.168.1.131;User ID=sa;Password=123456').BaoGuang_QrCode.dbo.T_BC_BaseInfo

多表關聯查詢(下列服務器名是隨便寫的吆)

SELECT * FROM OPENROWSET('SQLOLEDB','192.168.1.128';'sa';'ele3561424',EleList.dbo.barCode) A
JOIN OPENROWSET('SQLOLEDB','192.168.1.131';'sa';'123456',BaoGuang_QrCode.dbo.T_BC_BaseInfo) B
ON A.BarCode = B.BarCode
WHERE A.createDate>'2019-12-31 00:00:00'

 

select * from OPENROWSET('SQLOLEDB','192.168.10.28';'sa';'ele3561424',EleList.dbo.barCode) D
where D.BarCode not in (
SELECT A.BarCode FROM OPENROWSET('SQLOLEDB','192.168.10.28';'sa';'ele3561424',EleList.dbo.barCode) A
JOIN OPENROWSET('SQLOLEDB','192.168.10.168';'sa';'123qwe',BaoGuang_QrCode.dbo.T_BC_BaseInfo) B
ON A.BarCode = B.BarCode
WHERE A.createDate>'2019-12-31 00:00:00')
and D.createDate>'2019-12-31 00:00:00'
and D.BarCode like'%2001%'