如何创建此Select语句？

Question

有两个表：员工和部门。 Employee表有列：empid，deptid，employeename Departmen表有：deptid，deptname

我想创建一个选择状态，列出所有员工人数超过3人的员工。

我该怎么做？

Answer 1

select empid, employeename
from Employee
where deptid in (
    select deptid
    from Employee
    group by deptid
    having count(*) > 3
)

Answer 2

只是另一种方法......

Select e.empid, e.employeename
from employee e
where 3 <= (select count(e2.empid) 
            from employee e2 
            where e2.empid <> e.empid and e2.deptid = e.deptid)