Tell me the personal name of the course author that teaches the course with name "advanced database".
select t1.personal_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"
Tell me the login name of the course author that teaches the course with 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 = "advanced database"