题解 | #查找所有员工的last_name和......#
查找所有员工的last_name和first_name以及对应部门编号dept_no
https://www.nowcoder.com/practice/dbfafafb2ee2482aa390645abd4463bf
select e.last_name as last_name, e.first_name as first_name, dp.dept_no as dept_no from employees as e left join dept_emp dp on e.emp_no = dp.emp_no