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
Temukan ID subjek, nama subjek, dan jumlah kursus yang tersedia untuk setiap subjek.
CREATE TABLE Courses (subject_id VARCHAR); CREATE TABLE Subjects (subject_name VARCHAR, subject_id VARCHAR)