55. 更改 108 員工的信息: 使其工資變為所在部門中的最高工資, job 變為公司中平均工資最低的 job1). 搭建骨架update employees set salary = (), job_id = () where employee_id = 108;2). 所在部門中的最高工資 select max(salary)from employeeswhere department_id = (select department_idfrom employeeswhere employee_id = 108)3). 公司中平均工資最低的 jobselect job_idfrom employeesgroup by job_idhaving avg(salary) = (select min(avg(salary))from employeesgroup by job_id)4). 填充update employees e set salary = (select max(salary)from employeeswhere department_id = e.department_id), job_id = (select job_idfrom employeesgroup by job_idhaving avg(salary) = (select min(avg(salary))from employeesgroup by job_id)) where employee_id = 108;56. 刪除 108 號員工所在部門中工資最低的那個員工.1). 查詢 108 員工所在的部門 idselect department_idfrom employees where employee_id = 108;2). 查詢 1) 部門中的最低工資:select min(salary)from employeeswhere department_id = (select department_idfrom employees where employee_id = 108)3). 刪除 1) 部門中工資為 2) 的員工信息:delete from employees ewhere department_id = (select department_idfrom employees ewhere employee_id = 108) and salary = (select min(salary)from employeeswhere department_id = e.department_id)

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