SELECT count(*) FROM STUDENTS WHERE student_id NOT IN ( SELECT student_id FROM Behavior_Incident )
How many students are not involved in any behavior incident?
SELECT count ( * ) FROM STUDENTS WHERE student_id NOT IN ( SELECT student_id FROM Behavior_Incident )
select count ( * ) from students where student_id not in ( select student_id from behavior_incident )
How many students are not involved in any behavior incident ?