Oracle® Database
For example, to change the environment variables on a Windows Server 2003 computer, double-click System, click the Advanced tab, and click Environment Variables. Using the previous example, the host name would be sales and the domain would be us. If there is an existing Oracle software installation on this system, see for more detailed installation instructions.
If you have multiple versions of Oracle libraries installed, make sure the new directory occurs first in the path 4. Alternatively, navigate to the directory where you downloaded or copied the installation files. Link to download Oracle client 9i for a 64-bit machine. Download if you want the client libraries only Oracle Database 11 g Release 2 Grid Infrastructure 11.
Oracle® Database - An error is returned if a character set other than those in the list is used as the client or database character set.