题解 | #查找所有员工的last_name和first_name以及对应部门编号dept_no#
查找薪水记录超过15条的员工号emp_no以及其对应的记录次数t
http://www.nowcoder.com/practice/6d4a4cff1d58495182f536c548fee1ae
select emp_no,count() from salaries group by emp_no having count()>15;
查找薪水记录超过15条的员工号emp_no以及其对应的记录次数t
http://www.nowcoder.com/practice/6d4a4cff1d58495182f536c548fee1ae
select emp_no,count() from salaries group by emp_no having count()>15;
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