Find the number of female students (with F sex) living in Smith Hall
create table lives_in (stuid varchar, dormid varchar, PRIMARY KEY (stuid)); create table student (stuid varchar, sex varchar, PRIMARY KEY (stuid)); create table dorm (dormid varchar, dorm_name varchar, PRIMARY KEY (dormid))
select count(*) from student as t1 join lives_in as t2 on t1.stuid = t2.stuid join dorm as t3 on t3.dormid = t2.dormid where t3.dorm_name = 'smith hall' and t1.sex = 'f'