Sort out-of-date workstations

Hi,

Is there a way to look at my list of out-of-date workstations sorted by Group? It would make cutting them down and fixing them much simpler.

I've been looking at SQL lately, so this could be my first actual use of it. If this is done through SQL, please give me the process as someone who has no idea where to go to do that. Can I do SQL stuff on a remote workstation that only has access through the Java terminal? What programs would I use?