query: SELECT student_id FROM students WHERE student_id NOT IN (SELECT student_id FROM student_course_attendance)
question: List the id of students never attends no courses?
query_toks: SELECT student_id FROM students WHERE student_id NOT IN ( SELECT student_id FROM student_course_attendance )
query_toks_no_value: select student_id from students where student_id not in ( select student_id from student_course_attendance )
question_toks: List the id of students never attends no courses?