What is the first and last name of the student participating in the most activities?
create table student (fname varchar, lname varchar, stuid varchar, PRIMARY KEY (fname)); create table participates_in (stuid varchar, PRIMARY KEY (stuid))
select t1.fname, t1.lname from student as t1 join participates_in as t2 on t1.stuid = t2.stuid group by t1.stuid order by count(*) desc limit 1