SELECT count(*) FROM courses AS T1 JOIN student_course_attendance AS T2 ON T1.course_id = T2.course_id WHERE T2.student_id = 171
How many courses does the student with id 171 actually attend?
SELECT count ( * ) FROM courses AS T1 JOIN student_course_attendance AS T2 ON T1.course_id = T2.course_id WHERE T2.student_id = 171
select count ( * ) from courses as t1 join student_course_attendance as t2 on t1 . course_id = t2 . course_id where t2 . student_id = value
How many courses does the student with id 171 actually attend ?