SELECT T1.course_name FROM Courses AS T1 JOIN Student_Course_Enrolment AS T2 ON T1.course_id  =  T2.course_id GROUP BY T1.course_name HAVING COUNT(*)  =  1
Find the names of the courses that have just one student enrollment.
SELECT T1.course_name FROM Courses AS T1 JOIN Student_Course_Enrolment AS T2 ON T1.course_id = T2.course_id GROUP BY T1.course_name HAVING COUNT ( * ) = 1
select t1 . course_name from courses as t1 join student_course_enrolment as t2 on t1 . course_id = t2 . course_id group by t1 . course_name having count ( * ) = value
Find the names of the courses that have just one student enrollment .