Oracle Linux 6 does (by default) not install a graphical desktop like it's predecessors. You might have selected the wrong installation type. For Oracle products, you should choose "Basic Server" and do not need to customize the installation packages. Perhaps you chose Desktop, but hopefully not Virtualization because you should not run the XEN kernel under a type 2 hosted hypervisor, like VMware with hardware virtualization support, as it can reduce your performance quite drastically.
The GUI does not really take that many resources, not compared to Windows, but if you are short of RAM, etc., you can simply try the following:
su - root
To make it the default after the next reboot, edit /etc/inittab, last line, accordingly.
I've setup Oracle Linux 6 as Vmware Guest (on External Driver) and Windows 7 as Host. And I'm running Oracle EBS R12 on Linux.
When I'm login to VMWare the Linux starts up with GUI which is just a waste of resources.
Please let me know how can I run the Linux 6 in text mode on VMWare.
In addition to Dude's comments ... it sounds like you are connecting to your vm machine via the vmware console. Personally, I treat that console just like I treat the console on my physical servers in my data center. That is, I don't run down to the data center whenever I need to log on to a linux server. That's what remote console programs such as putty are for. I have a suite of 10 linux vm's on my Win7 desktop, and one of my 4 "Prime Directives" is that I access them using exactly the same Windows desktop tools I use to access my physical servers.