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 de.dept_no,dm.dept_name,t.title,count(t.title) as count from dept_emp de left join departments dm on de.dept_no = dm.dept_no left join titles t on de.emp_no = t.emp_no where de.to_date = '9999-01-01' group by de.dept_no,dm.dept_name,t.title having count(t.title) order by de.dept_no asc,t.title asc
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