I have have two SQL Server's that I primarily use (a 2005 instance and a 2000.) My permission structure works as such--
First I create an Active Directory Group and then I add all necessary user's to it. Then, I go to SQL-MS and I add a user by select the Windows Authentication option, and then selecting the AD Group which I just created. Impertinent to this post but I then associate the new login account with all of the necessary data tables, views and SPs.
After selecting the group, I have always left the Login name field as the name of the AD Group for reference.
Recently I have had an AD Group renamed. The database has continued to work and, some how, SQL Server knows which AD Group to associate the SQL login. My problem is that the login name hasn't updated in SQL Server so I have no clue which AD Group is associated with the SQL Server Login account!
Is there a query which I can run, or is there a setting buried some where that could help me discover which AD Group is associated with this account?
-- EDIT --
Thank's responders for your answers. You've answered this question, however, it's propgated another question posted here.