Rob Zylowski created an impressive document about pulling VI3 information from the Virtual Center database. This document was meant to be a chapter in the new VI3 Book but was skipped due to the size of the new book. You can download it for free at VMGuru.com.
Rob Zylowski:
Ok, so you purchased VirtualCenter knowing that it would help you manage the new critical environment that you were setting up. You were sold on the many benefits that VirtualCenter had to offer. You installed it and use it every day because it really is a great way to manage your virtual environment. One of the best things about VirtualCenter is that VMware has made it very easy to integrate with. There are API’s that will allow you to automate tasks that are not already automated with the standard product offerings. There is also an excellent database that you can use to create reports to help you manage the VI infrastructure in much better ways.