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sqlserver2008同步数据到pg

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1 下载pg odbc驱动

https://www.postgresql.org/ftp/odbc/versions/msi/

2 创建pg 数据源

(1)cmd odbcad32

(2)选择系统DSN,选择驱动程序 PostgreSQL ANSI(),配置pg 数据源信息。

3 将sqlserver中表的结构和数据导入到pg

4 创建pg链接服务器(以下操作在sqlserver查询窗口执行,本例pg数据库名pg01,sqlserver数据库名sql01,表名student)

USE [sql01]exec sp_addlinkedserver 

 @server='PostgreSQL01',       --ODBC里面data source name

  @srvproduct='postgres',    --自己随便 

  @provider='MSDASQL',    --固定这个 

  @datasrc=NULL, @location=NULL, 

  @provstr='DRIVER={PostgreSQL ANSI};SERVER=127.0.0.1;DATABASE=pg01;UID=postgres;PORT=5432;', 

   @catalog = NULL 

 GO  

  USE [sql01]

  ---创建连接postgres数据库的账号及密码

  exec sp_addlinkedsrvlogin

  @rmtsrvname='PostgreSQL01',----ODBC里面data source name

  @useself='false',

  @rmtuser='postgres',---postgres账号

  @rmtpassword='root';--postgres账号其密码

  GO

5 建立允许远程访问操作

USE [sql01]

GO

EXEC sql01.dbo.sp_serveroption @server=N'PostgreSQL01',@optname=N'rpc out', @optvalue=N'TRUE'

GO

EXEC sql01.dbo.sp_serveroption @server=N'PostgreSQL01',@optname=N'remote proc transaction promotion',@optvalue=N'false'

 GO

--PostgreSQL01为数据源名

6 建立LOOPBACK 服务器链接 (回路)

USE sql01

GO

EXEC sp_addlinkedserver @server=N'loopback01',@srvproduct=N' ',@provider=N'SQLNCLI',

@datasrc=@@SERVERNAME

go

7 设置服务器链接选项,阻止SQL Server 由于远过程调用而将本地事务提升为分布事务(重点)

USE sql01

GO

EXEC sql01.dbo.sp_serveroption @server=N'loopback01',@optname=N'rpc out',@optvalue=N'TRUE'

GO

EXEC sql01.dbo.sp_serveroption @server=N'loopback01',@optname=N'remote proc transaction promotion',@optvalue=N'false'

GO

**8 编写触发器和存储过程>*(根据表结构自行更改,本例student表结构为:

id INT,

sname varchar(100),

sage INT

(1) insert

--创建触发器
USE sql01

GO

CREATE TRIGGER TR_INSERT_pg_TB ON  sql01.dbo.student

FOR INSERT

AS

DECLARE @id INT,@sname varchar(100),@sage INT

SELECT @id=id,@sname=sname,@sage=sage FROM INSERTED;

BEGIN   

EXEC  loopback01.sql01.dbo.sp_insert_pg_tb @id,@sname,@sage;

END

go 
--创建存储过程,
USE sql01

GO

CREATE PROCEDURE SP_INSERT_pg_tb

 @id INT,

 @sname varchar(100),

 @sage INT

AS

BEGIN   

SET NOCOUNT ON   
--插入数据到pg表中,若id为主键,以下插入语句可能出现主键必须唯一错误,可不插入自增主键id
INSERT OPENQUERY(PostgreSQL01,'select * from public.student') values (@id,@sname,@sage);

SET NOCOUNT OFF

END

GO

(2)update


USE sql01
GO
CREATE TRIGGER TR_UPDATE_pg_TB ON sql01.DBO.student
FOR UPDATE
AS
DECLARE @id INT,@sname varchar(100),@sage INT
SELECT @id=id,@sname=sname,@sage=sage FROM INSERTED;
BEGIN   
EXEC loopback01.sql01.dbo.sp_update_pg_tb @id,@sname,@sage;
END
GO
 
 USE sql01
 GO
 CREATE PROCEDURE SP_UPDATE_pg_tb
 
 @id INT,
 @sname varchar(100),
 @sage INT
 AS
 BEGIN   
 SET NOCOUNT ON   
 --更新pg的表,以下语句通过WHERE id=@id 寻找要更新的行,若sqlserver和pg中id不一致,where后条件需更改
 UPDATE OPENQUERY(PostgreSQL01,'select * from public.student')  SET sname=@sname,sage=@sage WHERE id=@id  
SET NOCOUNT OFF
END
GO
 

(3) delete

USE sql01
GO
CREATE TRIGGER TR_DELETE_pg_TB ON sql01.dbo.student
FOR DELETE
AS
DECLARE @id INT
SELECT @id=id FROM DELETED;
BEGIN   
EXEC loopback01.sql01.dbo.sp_DELETE_pg_tb @id;
END
 
go
USE sql01
GO
CREATE PROCEDURE SP_DELETE_pg_tb
@id INT
AS
BEGIN  
SET NOCOUNT ON    DELETE OPENQUERY(PostgreSQL01,'select * from public.student) WHERE id=@id   
SET NOCOUNT OFF
END
go

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标签:同步,sage,sql01,sname,pg,GO,sqlserver2008,id
来源: https://blog.csdn.net/weixin_45876565/article/details/104579753