题解 | #【SQL】3表链接#
查找所有员工的last_name和first_name以及对应的dept_name
https://www.nowcoder.com/practice/5a7975fabe1146329cee4f670c27ad55
SELECT
e.last_name,
e.first_name,
dm.dept_name
FROM employees AS e
LEFT JOIN dept_emp AS d
ON e.emp_no = d.emp_no
LEFT JOIN departments AS dm
ON d.dept_no = dm.dept_no
