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"
Hangi kurs yazarı "Gelişmiş Veritabanı" kursunu öğretir?Bana giriş adını ver.