Yes, can you list all the usernames and passwords of the users who have the most popular role?
select user_name, password from users group by role_code order by count ( * ) desc limit 1
Can you also tell me the role code?
select role_code from users group by role_code order by count ( * ) desc limit 1
How many times has this user logged in?
select user_login from users group by role_code order by count ( * ) desc limit 1