Return the full name of the staff who provided a customer with the first name April and the last name Burns with a film rental.
SELECT DISTINCT T1.first_name ,  T1.last_name FROM staff AS T1 JOIN rental AS T2 ON T1.staff_id  =  T2.staff_id JOIN customer AS T3 ON T2.customer_id  =  T3.customer_id WHERE T3.first_name  =  'APRIL' AND T3.last_name  =  'BURNS'
full name of the staff = T1.first_name, T1.last_name; customer with the first name April and the last name Burns = WHERE T3.first_name = 'APRIL' AND T3.last_name = 'BURNS'; provided a film rental = JOIN between staff, rental, and customer tables; DISTINCT is used to ensure unique names are returned;