之前为大家介绍的DB2数据库必须掌握的常用语句(三)、DB2数据库必须掌握的常用语句(二)、DB2数据库必须掌握的常用语句(一),接下来为大家介绍更多的有关DB2数据库常用语句的知识。
1、由sales表中查找出订单金额大于"E0013业务员在1996/10/15这天所接每一张订单的金额"的所有订单
select *
from sales
where tot_amt>all
(select tot_amt
from sales
where sale_id='E0013'and order_date='1996/10/15')
order by tot_amt
2、计算'P0001'产品的平均销售单价
select avg(unit_price)
from sale_item
where prod_id='P0001'
3、找出公司女员工所接的定单
select sale_id,tot_amt
from sales
where sale_id in
(select sale_id from employee
where sex='F')
4、找出同一天进入公司服务的员工
select a.emp_no,a.emp_name,a.date_hired
from employee a
join employee b
on (a.emp_no!=b.emp_no and a.date_hired=b.date_hired)
order by a.date_hired
5、找出目前业绩超过232000元的员工编号和姓名
select emp_no,emp_name
from employee
where emp_no in
(select sale_id
from sales
group by sale_id
having sum(tot_amt)<232000)
6、查询出employee表中所有女职工的平均工资和住址在"上海市"的所有女职工的平均工资
select avg(salary)
from employee
where sex like 'f'
union
select avg(salary)
from employee
where sex like 'f' and addr like '上海市%'
7、在employee表中查询薪水超过员工平均薪水的员工信息
Select *
from employee
where salary>( select avg(salary)
from employee)
8、 找出目前销售业绩超过10000元的业务员编号及销售业绩,并按销售业绩从大到小排序
Select sale_id ,sum(tot_amt)
from sales
group by sale_id
having sum(tot_amt)>10000
order by sum(tot_amt) desc
9、 找出公司男业务员所接且订单金额超过2000元的订单号及订单金额
Select order_no,tot_amt
From sales ,employee
Where sale_id=emp_no and sex='M' and tot_amt>2000
10、 查询sales表中订单金额最高的订单号及订单金额
Select order_no,tot_amt from sales
where tot_amt=(select max(tot_amt) from sales)
11、 查询在每张订单中订购金额超过4000元的客户名及其地址
Select cust_name,addr from customer a,sales b
where a.cust_id=b.cust_id and tot_amt>4000
12、 求出每位客户的总订购金额,显示出客户号及总订购金额,并按总订购金额降序排列
Select cust_id,sum(tot_amt) from sales
Group by cust_id
Order by sum(tot_amt) desc