As a best practice, Oracle recommends creating new databases by using atabase Configuration Assistant (DBCA) tool. Since DBCA is a graphical interface and if your Oracle runs on an Oracle Linux installation without a desktop environment what you need to do is explained right below:

1. Install Xming on your Windows desktop. During the installation select the "Don't install an SSH Client" radio button.
2. Run Xming
3. Assuming that you're using Putty, click "Enable X11 forwarding" and set "X Display Location" to "localhost:0" as displayed below:

After you logged on to your server you can run DBCA and a new window will be opened on your desktop.