select d.dname, d.loc, d.deptno
from dept d, (
    select rownum no, deptno
    from (
        select count(*) 人数, deptno
        from emp
        group by deptno
            order by 人数 desc
    )
)  e
where e.no between 2 and 5
    and e.deptno = d.deptno;