三种方法
查找所有已经分配部门的员工的last_name和first_name以及dept_no
http://www.nowcoder.com/questionTerminal/6d35b1cd593545ab985a68cd86f28671
1
SELECT e.last_name, e.first_name, d.dept_no FROM employees AS e, dept_emp AS d WHERE e.emp_no = d.emp_no;
2
SELECT e.last_name, e.first_name, d.dept_no FROM employees AS e JOIN dept_emp AS d ON e.emp_no=d.emp_no;
3
SELECT e.last_name, e.first_name, d.dept_no FROM employees AS e INNER JOIN dept_emp AS d ON e.emp_no=d.emp_no;
投递vivo等公司10个岗位 >
