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