SELECT semester_name FROM Semesters WHERE semester_id NOT IN( SELECT semester_id FROM Student_Enrolment )
Which semesters do not have any student enrolled? List the semester name.
SELECT semester_name FROM Semesters WHERE semester_id NOT IN ( SELECT semester_id FROM Student_Enrolment )
select semester_name from semesters where semester_id not in ( select semester_id from student_enrolment )
Which semesters do not have any student enrolled ? List the semester name .