试题2（更新加强版）

1、创建表

新增员工表emp和部门表dept
create table dept (dept1 int ,dept_name varchar(11));
create table emp (sid int ,name varchar(11),age int,worktime_start date,incoming int,dept2 int);

 insert into dept values
(101,'财务'),
(102,'销售'),
(103,'IT技术'),
(104,'行政');

INSERT INTO emp2 VALUES (1789, ‘张三’, 35, ‘1980-01-01’, 4000, 101);
INSERT INTO emp2 VALUES (1674, ‘李四’, 32, ‘1983-04-01’, 3500, 101);
INSERT INTO emp2 VALUES (1776, ‘王五’, 24, ‘1990-07-01’, 2000, 101);
INSERT INTO emp2 VALUES (1568, ‘赵六’, 57, ‘1970-10-11’, 7500, 102);
INSERT INTO emp2 VALUES (1564, ‘荣七’, 64, ‘1963-10-11’, 8500, 102);
INSERT INTO emp2 VALUES (1879, ‘牛八’, 55, ‘1971-10-20’, 7300, 103);
INSERT INTO emp2 VALUES (1668, ‘钱九’, 64, ‘1963-05-04’, 8000, 102);
INSERT INTO emp2 VALUES (1724, ‘武十’, 22, ‘2023-05-08’, 1500, 103);
INSERT INTO emp2 VALUES (1770, ‘孙二’, 65, ‘1986-08-12’, 9500, 101);

2、找出销售部门中年纪最大的员工的姓名

select name from emp2,dept where emp2.dept2=dept.dept1 and age= (select max(age) from emp2,dept where emp2.dept2=dept.dept1 and dept_name = ‘销售’ ) and dept_name =‘销售’

3、求财务部门最低工资的员工姓名

select name from emp2,dept where emp2.dept2=dept.dept1 and incoming =(select min(incoming) from emp2,dept where emp2.dept2=dept.dept1 and dept_name = ‘财务’)

4、列出每个部门收入总和高于9000的部门名称

select dept_name,sum(incoming) as total from dept d,emp2 e where d.dept1=e.dept2 group by d.dept_name having total>9000;

5、求工资在7500到8500元之间，年龄最大的人的姓名及部门

select name,dept_name from emp2,dept where emp2.dept2=dept.dept1 and (incoming between 7500 and 8500) and age=(select max(age) from emp2,dept where emp2.dept2=dept.dept1 and (incoming between 7500 and 8500));

6、找出销售部门收入最低的员工入职时间

select name,worktime_start,incoming from dept d,emp2 e where d.dept1=e.dept2 and d.dept_name=‘销售’ and incoming=(select min(incoming) from dept,emp2 where dept.dept1=emp2.dept2 and dept.dept_name=‘销售’);

7、财务部门收入超过2000元的员工姓名

select name,incoming,dept_name from dept d,emp2 e where d.dept1=e.dept2 and d.dept_name=‘财务’ and incoming>2000;

8、列出每个部门的平均收入及部门名称

select dept_name,avg(incoming) avgsai from dept d,emp2 e where d.dept1=e.dept2 group by dept_name;

9、IT技术部入职员工的员工号

select sid,name,dept_name from dept d,emp2 e where d.dept1=e.dept2 and d.dept_name=‘IT技术’;

10、财务部门的收入总和

select dept_name,sum(incoming) avgsai from dept d,emp2 e where d.dept1=e.dept2 and dept_name=‘财务’ group by dept_name;

11、先按部门号大小排序，再依据入职时间由早到晚排序员工信息表

select dept2,name,worktime_start from dept d,emp2 e where d.dept1=e.dept2 order by dept2 desc,worktime_start;

12、找出哪个部门还没有员工入职

select * from dept where dept1 not in (select dept2 from emp2);

13、列出部门员工收入大于7000的部门编号，部门名称

select name,dept_name,dept2 from dept d,emp2 e where d.dept1=e.dept2 and incoming>7000;

14、列出每一个部门的员工总收入及部门名称

select dept_name,sum(incoming) avgsai from dept d,emp2 e where d.dept1=e.dept2 group by dept_name;

15、列出每一个部门中年纪最大的员工姓名，部门名称

select name,age M_age,dept_name from dept d,emp2 e where d.dept1=e.dept2 and age in (select max(age) from emp2,dept where dept.dept1=emp2.dept2 group by dept2);

16、求李四的收入及部门名称

select name,incoming,dept_name from dept d,emp2 e where d.dept1=e.dept2 and name like ‘李四’;

17、列出每个部门中收入最高的员工姓名，部门名称，收入，并按照收入降序

select name,incoming M_inc,dept_name from dept d,emp2 e where d.dept1=e.dept2 and incoming in (select max(incoming) from emp2,dept where dept.dept1=emp2.dept2 group by dept2) order by incoming desc;

18、列出部门员工数大于1个的部门名称

select dept_name from dept where dept1 in (select dept2 from emp2 group by dept2 having count(dept2)>1);

19、查找张三所在的部门名称

select dept_name from dept d,emp2 e where d.dept1=e.dept2 and name like ‘张三’;