查找所有已经分配部门的员工的信息
查找所有已经分配部门的员工的last_name和first_name以及dept_no
https://www.nowcoder.com/practice/6d35b1cd593545ab985a68cd86f28671
方法一:
SELECT
e.last_name,
e.first_name,
de.dept_no
FROM
employees AS e,
dept_emp AS de
WHERE
de.emp_no = e.emp_no;
方法二:
SELECT
e.last_name,
e.first_name,
de.dept_no
FROM
employees AS e
INNER JOIN dept_emp AS de ON de.emp_no = e.emp_no;
