SELECT T1.login_name FROM Course_Authors_and_Tutors AS T1 JOIN Courses AS T2 ON T1.author_id  =  T2.author_id WHERE T2.course_name  =  "advanced database"
Which course author teaches the "advanced database" course? Give me his or her login name.
SELECT T1.login_name FROM Course_Authors_and_Tutors AS T1 JOIN Courses AS T2 ON T1.author_id = T2.author_id WHERE T2.course_name = `` advanced database ''
select t1 . login_name from course_authors_and_tutors as t1 join courses as t2 on t1 . author_id = t2 . author_id where t2 . course_name = value
Which course author teaches the `` advanced database '' course ? Give me his or her login name .