Find the subject ID, name of subject and the corresponding number of courses for each subject, and sort by the course count in ascending order.
SELECT T1.subject_id ,  T2.subject_name ,  COUNT(*) FROM Courses AS T1 JOIN Subjects AS T2 ON T1.subject_id  =  T2.subject_id GROUP BY T1.subject_id ORDER BY COUNT(*) ASC
subject ID = subject_id; name of subject = subject_name; number of courses for each subject = COUNT(*); sort by the course count in ascending order = ORDER BY COUNT(*) ASC;