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学习DB2数据库必须掌握的五十四条常用语句 | |||
2008-5-9 16:04:12 文/Bert 出处:赛迪网 | |||
26、选取编号界于'C0001'和'C0004'的客户编号、客户名称、客户地址 select CUST_ID,cust_name,addr from customer where cust_id between 'C0001' AND 'C0004'
27、计算出一共销售了几种产品 select count(distinct prod_id) as '共销售产品数' from sale_item
28、将业务部员工的薪水上调3% update employee set salary=salary*1.03 where dept='业务'
29、由employee表中查找出薪水最低的员工信息 select * from employee where salary= (select min(salary ) from employee )
30、使用join查询客户姓名为"客户丙"所购货物的"客户名称","定单金额","定货日期","电话号码" select a.cust_id,b.tot_amt,b.order_date,a.tel_no from customer a join sales b on a.cust_id=b.cust_id and cust_name like '客户丙'
31、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 32、计算'P0001'产品的平均销售单价 select avg(unit_price) from sale_item where prod_id='P0001' 33、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') 34、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 35、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) 36、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%' 37、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) 38、 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 39、 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 |
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