...
To enter the above, in CFAdmin, Create a new DSN and you'll need to choose "Other" in the DSN Driver. In the new window, enter your DSN name, the jdbc URL/connection string (however it looks from above), Driver Class should be "macromedia.jdbc.MacromediaDriver", Driver Name can be whatever you choose, and then the appropriate username and password to access.
Installing updated Oracle JDBC Drivers
If you need to install an updated Oracle JDBC driver (i.e. Oracle 12g), you'll need to upload a "jar" file that contains the updated driver to your hosting environment.
This can be done by downloading the driver from Oracle's website (odbc6.jar for Java 1.6 or odbc7.jar for Java 1.7) and uploading the file into your "jars" directory (next to your htdocs directory). Once the file is uploaded you'll need to restart your Coldfusion instance using the Hosting Dashboard.