【SQL Server数据迁移】32位的机器:SQL Server中查询ORACLE的数据

从SQL Server中查询ORACLE中的数据,可以在SQL Server中创建到ORACLE的链接服务器来实现的,但是根据32位 、64位的机器和软件,需要用不同的驱动程序来实现。

 在32位的机器上,通过访问接口:Microsoft OLE DB Provide for Oracle,来实现。  

 

1、机器环境和软件环境

机器是一台虚拟机,安装了windows xp,SQL Server 20008R2,Oracle 10g 10.2.0.1.0。

 

2、ORACLE环境的设置

连接oracle:

C:\Documents and Settings\Administrator>sqlplus / as sysdba
 
SQL*Plus: Release 10.2.0.1.0 - Production on 星期四 3月 13 15:22:29 2014
 
Copyright (c) 1982, 2005, Oracle.  All rights reserved. 
 
连接到:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options

修改scott用户的密码为tiger,并给账户解锁,尝试登录,查询表:

SQL> alter user scott identified by tiger;
 
用户已更改。
 
SQL> alter user scott account unlock;
 
用户已更改。
 
SQL> connect scott/tiger
已连接。
SQL> select count(*) from emp;

 COUNT(*)
----------
  14

查看listener.ora是否正确:

# listener.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
 
SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (GLOBAL_DBNAME=orcl)
      (ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
      (SID_NAME =orcl)
    )
  )
 
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    )
  )

要特别注意里面的:
(SID_DESC =
      (GLOBAL_DBNAME=orcl)
      (ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
      (SID_NAME =orcl)
 )


另外,查看tnsnames.ora是否正确:

# tnsnames.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
 
ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )
 
EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
  )

特别是:
ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )

SQL> host lsnrctl status
 
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 13-3月 -2014 15:23:31
 
Copyright (c) 1991, 2005, Oracle.  All rights reserved.
 
正在连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
LISTENER 的 STATUS
------------------------
别名                      LISTENER
版本                      TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Production
启动日期                  13-3月 -2014 14:20:27
正常运行时间              0 天 1 小时 3 分 6 秒
跟踪级别                  off
安全性                    ON: Local OS Authentication
SNMP                      OFF
监听程序参数文件          C:\oracle\product\10.2.0\db_1\network\admin\listener.ora
监听程序日志文件          C:\oracle\product\10.2.0\db_1\network\log\listener.log
监听端点概要...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
服务摘要..
服务 "PLSExtProc" 包含 1 个例程。
  例程 "PLSExtProc", 状态 UNKNOWN, 包含此服务的 1 个处理程序...
服务 "orcl" 包含 1 个例程。
  例程 "orcl", 状态 UNKNOWN, 包含此服务的 1 个处理程序...
命令执行成功

 

3、设置链接服务器。

需要特别注意的是,数据源orcl指的是:tnsnames.ora文件中的orcl服务名。 

第一步,选择“新建链接服务器”:

 

 第二步,一定要选择 Microsoft OLE DB Provide for Oracle:

 

 第三步,输入产品:oracle,数据源:orcl: 

 

 第四步,输入oracle的用户名和密码,这个需要根据实际情况设置,输入完后,点确定就好:

 

4、测试查询

select * from openquery(xxx, 'SELECT * FROM emp')

返回结果:  

 

5、用代码实现:

EXEC master.dbo.sp_addlinkedserver 
        @server = N'ORACLE_SCOTT', 
        @srvproduct=N'ORACLE', 
        @provider=N'MSDAORA', 
        @datasrc=N'orcl'
go
        
 /* For security reasons the linked server remote logins password is changed with ######## */
EXEC master.dbo.sp_addlinkedsrvlogin 
        @rmtsrvname=N'ORACLE_SCOTT',
        @useself=N'False',
        @locallogin=NULL,
        @rmtuser=N'scott',
        @rmtpassword='tiger'
GO
 
 
select * from openquery(ORACLE_SCOTT, 'SELECT * FROM scott.emp')

 

6、通过openrowset函数来实现,更简单。

select *   
from openrowset('MSDAORA','orcl';'scott';'tiger','select * from SCOTT.EMP')  

  

  

  



  

  

  

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转载自www.cnblogs.com/lgx5/p/11364946.html
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