题解 | #获取所有非manager的员工emp_no#
获取所有非manager的员工emp_no
http://www.nowcoder.com/practice/32c53d06443346f4a2f2ca733c19660c
SELECT e.emp_no FROM employees e
LEFT JOIN dept_manager dm on e.emp_no=dm.emp_no
WHERE dm.dept_no IS NULL;
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SQL刷题