Database: college_1
Question: What is the name, address, and number of students in the departments that have the 3 most students?
SQL: select t2.dept_name ,  t2.dept_address ,  count(*) from student as t1 join department as t2 on t1.dept_code  =  t2.dept_code group by t1.dept_code order by count(*) desc limit 3