How can create report for primary login user for machine

I need to find out who is primary login to each machine with the report has domain, user, computer name, IP address, Primary login user.

which table I need to join with vcomputer?

I only need the first initial and last name for the primary login user, I don't need the domian

example: gpd\test, I need to strip out gpd domain, only keep test as primary user

Thanks

Lillian