Question: Find the name of the teacher who teaches the largest number of students.
Schema: create table list (classroom varchar, PRIMARY KEY (classroom)); create table teachers (firstname varchar, lastname varchar, classroom varchar, PRIMARY KEY (firstname))
SQL: select t2.firstname, t2.lastname from list as t1 join teachers as t2 on t1.classroom = t2.classroom group by t2.firstname, t2.lastname order by count(*) desc limit 1