题解 | #汇总各个部门当前员工的title类型的分配数目#
汇总各个部门当前员工的title类型的分配数目
https://www.nowcoder.com/practice/4bcb6a7d3e39423291d2f7bdbbff87f8
select dp.dept_no,dp.dept_name,t1.title,t1.count
from
(select de.dept_no,t.title,count(t.title) count
from dept_emp de,titles t
where de.emp_no = t.emp_no
group by de.dept_no,t.title) t1
join departments dp
on t1.dept_no = dp.dept_no
order by dp.dept_no,t1.title
#小白的技术进阶日记#
from
(select de.dept_no,t.title,count(t.title) count
from dept_emp de,titles t
where de.emp_no = t.emp_no
group by de.dept_no,t.title) t1
join departments dp
on t1.dept_no = dp.dept_no
order by dp.dept_no,t1.title
#小白的技术进阶日记#
