Sql server database created on the linked server, connect oracle database access interface needs to be set: " the Oracle Provider for OLE DB."
If the computer does not have this, the installation procedure is a complete Oracle11gR2 an effective method, but the 64-bit version of the application has more than 2 G,
It is enormous, if only to establish a link server, absolutely no need to install such a monster. In fact, we only need to download the compressed package to ODAC .
How to sum up the following registration: "Oracle Provider for OLE DB" this drive:
Part1.注册“Oracle Provider for OLE DB”：
1. Download ODAC112030Xcopy_x64.zip:
Download: http://download.csdn.net/detail/u014019244/9061209
2. Extract ODAC112030Xcopy_x64.zip (I extract to the C drive):
3. At the command line interface into operation unzip the folder "install.bat oledb c: \ oracle odac" Installation:
4. In the system environment variable, add Path "C: \ oracle; C: \ oracle \ bin;"
(Computer Properties - Advanced System Settings - Advanced - Environment Variables - System environment variables -Path):
Select the "Environment Variables" in the "system variables" in the "Path", click on the "Edit" button,
Add on top "C: \ oracle; C: \ oracle \ bin;"
5. Restart your computer.
After finish the above operations, turn on the machine SQL Server Management Studio, when New Linked Server,
"Provider" drop-down box "Oracle Provider for OLE DB" appears.
Part2.新建链接服务器：
- 打开本机SQL Server Management Studio连接到本机数据库;
- 展开“服务器对象”;
- 选择“链接服务器”-右键-“新建链接服务器”;
- 在“新建链接服务器”的窗口里，选择“常规”；
- 输入“链接服务器名称”(检验用英文字符名称)；
- “服务器类型”选择“其他数据源”；
- “访问接口”选择“Oracle Provider for OLE DB”；
- “产品名称”输入“oracle”;
- “数据源”输入：(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.xxx.xxx)(PORT = 1521))(CONNECT_DATA = (SERVER = DEDICATED)(SERVICE_NAME = orcl)))
其中host是oracle数据库所在的服务器的ip;
10.在“安全性”界面，勾选“使用此安全上下文建立连接”，输入“远程登录”和“使用密码”(oracle的登录名和密码)：
11.“服务器选项”的界面的设置如下图：
查询测试“链接服务器”是否成功创建，如下图：
sql server数据库使用链接服务器查询oracle数据库的语法：
SELECT * FROM OPENQUERY(SWAPDB,'select xxx from 表名')
如果出现错误“无法创建链接服务器 "xxx" 的 OLE DB 访问接口 "OraOLEDB.Oracle" 的实例。 (Microsoft SQL Server，错误: 7302)”
，请参考下面这篇文章解决：