UPDATE employee SET salary=69000,birthday=’1993-02-28’WHERE username=’井空苍妹妹’;将表中username为井空苍妹妹的员工的salary修改为69000、birthday修改为1993-02-28 UPDATE employee SET salary=salary+...
返回刚刚创建的employee表中departmentID为203的数据有几条create function numofemployee(department_ID int) returns int begin declare count int;select count(*)into count from employee where departmentID&...
再用上条查看,就会有结果了 5:关键字IN集合查询 SELECT name,salary FROM employee WHERE salary=3000 OR salary=3500 OR salary=4000 OR salary=9000;SELECT name,salary FROM employee WHERE salary IN(3000,3500...
on(c.employee_id=e.employee_id) when matched then update set c.first_name=e.first_name, c.last_name=e.last_name, delete where(e.commission_pct is not null) when not matched then insert values(e....
公司里前 3 高的薪水意味着有不超过 3 个工资比这些值大AC 代码解决方案(1)SELECT de.NAME Department,em.NAME Employee,em.Salary FROM Employee em JOIN Department de ON em.DepartmentId&61;de.Id, SELECT MAX...