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 c.dept_no,c.dept_name,c.title,count(title) as count from(select a.emp_no,a.dept_no,b.title,d.dept_name from (dept_emp a) inner join titles b on a.emp_no = b.emp_no left join departments d on a.dept_no = d.dept_no) as c group by c.dept_no,c.title order by c.dept_no,c.title
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