SELECT t1.first_name FROM staff AS t1 JOIN complaints AS t2 ON t1.staff_id  =  t2.staff_id GROUP BY t2.staff_id ORDER BY count(*) LIMIT 5
What is first names of the top 5 staff who have handled the greatest number of complaints?
SELECT t1.first_name FROM staff AS t1 JOIN complaints AS t2 ON t1.staff_id = t2.staff_id GROUP BY t2.staff_id ORDER BY count ( * ) LIMIT 5
select t1 . first_name from staff as t1 join complaints as t2 on t1 . staff_id = t2 . staff_id group by t2 . staff_id order by count ( * ) limit value
What is first names of the top 5 staff who have handled the greatest number of complaints ?