mysql测试数据库employees一些sql语句
1、查找整个职员表的所有内容。
select *
from employees
2、查看雇员名字(last_name)。
select last_name
from employees
3、查看雇员编号、名字和工种。
select last_name，job_id，employee_id
from employees
4、显示所有雇员的姓名、工资并将DEPARTMENT_ID显示为（Department_Id）。
select last_name,salary,DEPARTMENT_ID as Department_Id
from employees
5、查找在60号部门工作的雇员。
select last_name+first_name name,department_id
from employees
where departmet_id=60
6、要求查找职位为SH_CLERK和SA_MAN的雇员姓名(last_name)。
select last_name job_id
from employees
where job_id in ('sh_clerk','sa_man')
7、查找职位不是SH_CLERK和SA_MAN的雇员工种及姓名。将姓名显示为(first_name+last_name命名为”Name”)。
select first_name+last_name Name, job_id
from employees
where job_id not in ('sh_clerk','sa_man')
8、查找哪些雇员的工资在2000到3000之间
select *
from employees
where salary between 2000 and 3000
9、查找哪些雇员的工资不在3000到5000之间
select *
from employees
where salary not between 3000 and 5000
10、查找first_name以D开头，后面仅有三个字母的雇员信息。
select *
from employees
where first_name like ‘D___' and first_name not like ‘d__ ‘
11、查找last_name以K开头的雇员信息。
select last_name,first_name,department_id
from employees
where last_name like ‘k%'
12、查找名字以字母M开头，以l结尾，并且第三个字母为c的雇员名字(First_name)、工种和所在部门号
select first_name,job_id,department_id
from employees
where first_name like ‘m_c%l'
13、查找哪些雇员的工种名不以SA开头。
select job_id
from employees
where job_id not like 'sa%'
14、查找没有奖金的雇员信息。
select *
from employees
where commission_pct is null
15、查找有奖金的雇员信息。
select *
from employees
where commission_pct is not null
16、查找30号部门里不是CLERK的雇员信息。
select *
from employees
where department_
17、查找在30号部门工作或不是CLERK的雇员信息。
select *
from employees
where department_id=30
or job_id not like ‘%clerk%'
查找60号部门且工资大于5000的员工的信息
select *
from employees
where department_id=60
and salary>5000
18、按字母顺序显示雇员的名字(last_name)。
select last_name
from employees
order by last_name
19、按部门号降序显示。
select * from employees order by department_id desc
20、查找工资高于$2000的雇员信息，按部门号和雇员名字排序。
select * from employees where salary>2000 order by department_id,employee_id
21、选择奖金高于5%的雇员信息
SELECT FIRST_NAME, LAST_NAME, COMMISSION_PCT
FROM dbo.EMPLOYEES
WHERE (COMMISSION_PCT > .05)
22 查询年工资高于50000的员工信息
select * from employees where 12*salary>50000
23 查询奖金高于5000的员工姓名
day
1、查出部门地区编号为1700的员工姓名
select first_name,last_name,city,department.location_id
from locations,employees,department
where locations.location_id=department.location_id
and locations.location_id=1700
2、查询工作地区为北京的员工名及工资信息
select first_name,last_name,salary,commission_pct,city
from locations,employees,departments
where departments.location_id=locations.location_id
and departments.department_id = employees.department_id
and departments.location_id=1700
3、查询薪水标准为B类的员工名称和员工薪水以及工资类别名称
select last_name,first_name,salary,commission_pct,gra
from departments d,employees e,job_grades j
where e.salary between j.lowest and j.highest
and j.gra='b'
and d.department_id=e.department_id
4、查询出主管Raphaely管理的员工和薪水信息
select a.last_name+a.first_name as name, a.salary,a.commission_pct,b.last_name
from employees a,employees b
where a.department_id=b.department_id
and a.last_name like ‘%raphaely%'
5、查出雇员所在的部门，并将没有雇员的部门的记录也显示出来。
select e.last_name+e.first_name as name,d.department_id
from departments d
left outer join employees e
on (e.department_id=d.department_id)
6、查询出没有分配部门的员工信息
select e.last_name+e.first_name as name,e.department_id
from departments d
left outer join employees e
on (e.department_id=d.department_id)
where d.department_id is null
7、计算每个部门的平均工资和工资总和
select department_id,sum (salary) sum,avg (salary) avg
from employees
group by department_id
8、查询每个部门的每个工种的雇员数
select count(*)num,department_id,job_id
from employees
group by department_id,job_id
9、请算出employee表中总雇员数量
select count(*)
from employee
10.请算出employee表中所有雇员的平均工资
select avg(salary)
from employee
11.请查询出employee表中的最低工资
select min(salary)
from employee
12.请查询出employee表中最高工资
select max(salary)
from employee
13、请计算出每个部门的平均工资、最高工资和最低工资
select max(salary) max,min(salary) min,avg(salary) avg,department_id
from employee
group by department_id
14、查询按部门名称分组工资总和大于4200的部门名称、工资和
select department_name,sum(salary)
from employees e,departments d
where e.department_id=d.department_id
group by department_name
having sum(salary)>4200
test001
1.请查询出employee表中最低工资的雇员
select last_name
from employee
where salary=(select min(salary) from employee)
2.请查询出employee表中最高工资的雇员
select last_name
from employee
where salary=(select max(salary) from employee)
3、查询工资高于105号雇员的last_name，并且工种与他相同的雇员情况。
select last_name,job_id,salary
from employees
where salary>(select salary from employees where employee_id='105′)
and job_105′)
4、查询工资高于或等于30号部门工资最高额的雇员。
select last_name,salary
from employees
where salary>=(select max(salary) from employees where department_id=30)
5 查询工资在1000到5000之间的雇员所在部门的所有人员的信息。
select *
from employees
where department_id in
(select department_id from employees where salary between 1000 and 5000)
6 查找工资高于60号部门所有员工的人员信息。显示其员工编号，last_name和工资。
select last_name,employee_id,salary
from employees
where salary>
(select max(salary) from employees where department_id=60)
7 将114号雇员的工种和部门号改为102号雇员的工种和部门号。
8、将所有与106号雇员相同工种的职工的部门号改成106号雇员所在的部门。
9、查询工种不为SH_CLERK，并且工资小于其中任何一个SH_CLERK的雇员信息。
