Unable to drop database user without login One of our developers with blanket privilege on a database wanted to create a regular user mapped to a login when what he mistakenly created was a user without login and now I'm unable to remove the user. DROP USER XX command runs forever with no result nor an error. The user doesn't own any schemas as well. How can I remove this user?
Thank you
Check for any blocking SPIDs when you have issued the DROP USER XXX command.

Then kill.