http://www.cnblogs.com/jiguixin/archive/2011/09/09/2172672.html
download link:
http://download.oracle.com/otn/nt/oracle11g/112010/win32_11gR2_client.zip
First unzip the downloaded ZIP file and run the setup.exe file.
After the fourth step is executed, there is an error, just click to ignore it all.
After the above steps are completed, it is time to wait for the installation of ORACLE.
Now this is done
1. After installing Oracle 11G Client it can be found in the start menu
Select NETCA->Local Net Service Name Configuration
Select Add local network service name configuration
The service name here: refers to the database name
Set up a C/S client in the network and select the TCP type
Enter the IP address of the server and select the default port
Test whether it is connected
The default is to connect unsuccessfully, try changing the user
scott
success
This service name is saved on the client and can be filled in at will, but it is used in PL/SQL connections such as: sqlplus scott /Y124@mhis
Okay
