* How to Check for SQL Logins, with NO Database Mapping

USE MASTER;
CREATE TABLE #dbusers (
sid VARBINARY(85))
EXEC sp_MSforeachdb
'insert #dbusers select sid from [?].sys.database_principals where type != ''R'''
SELECT name
FROM sys.server_principals
WHERE sid IN (SELECT sid
FROM sys.server_principals
WHERE TYPE != 'R'
AND name NOT LIKE ('##%##')
EXCEPT
SELECT DISTINCT sid
FROM #dbusers)
GO
DROP TABLE #dbusers