With the announced deprecation of sp_change_users_login, how are we to use ALTER LOGIN to fix orphaned users, in the same way that I used to use
sp_change_users_login 'update_one','mary','mary'
Edit: Matt Whitfield pointed out I should have been talking about ALTER USER. My bad!
You want to use ALTER USER, rather than ALTER LOGIN.
The equivalent would be
ALTER USER mary
WITH LOGIN = mary
From BOL, in SQL Server 2008 you can use the WITH LOGIN option of ALTER USER in order to fix an orphaned user. This functionality is also available in 2005.
