Question: Show the names of high school students and their corresponding number of friends.
Schema: create table highschooler (name varchar, id varchar, PRIMARY KEY (name)); create table friend (student_id varchar, PRIMARY KEY (student_id))
SQL: select t2.name, count(*) from friend as t1 join highschooler as t2 on t1.student_id = t2.id group by t1.student_id