创建一个查询，显示员工姓名及部门编号

Question

嘿家伙即时通讯还挺停留在这个问题上

创建一个查询，显示员工姓名，部门nmber和所有的员工，在同一部门工作作为给定员工

我想这将是答案：

Select ename,deptno 
from emp, dept 

但那不是正确的答案

Answer 1

select name, dept_number from employees 
where dept_num in 
      (select dept_num from employees where emp_num = given_emp_number); 

Answer 2

select employee_name,department,department_id,hire_date 
from employees 
where department ALL(
    select department_id 
    from employees 
    where department_id=bruce.exclude.bruce