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DB2常用sql demo

1、查找员工的编号、姓名、部门和出生日期,如果出生日期为空值,显示日期不详,并按部门排序输出,日期格式为yyyy-mm-dd。 select emp_no,emp_name,dept,isnull(convert(char(10),birthday,120),日期不详) birthdayfrom employeeorder by dept   2、查找与喻自强在同一个单位的员工姓名、性别、部门和职称select emp_no,emp_name,dept,titlefrom employeewhere emp_name<>喻自强 and dept in(select dept from employeewhere emp_name=喻自强)    3、按部门进行汇总,统计每个部门的总工资select dept,sum(salary)from employeegroup by dept   4、查找商品名称为14寸显示器商品的销售情况,显示该商品的编号、销售数量、单价和金额select a.prod_id,qty,unit_price,unit_price*qty totpricefrom sale_item a,product bwhere a.prod_id=b.prod_id and prod_name=14寸显示器    5、在销售明细表中按产品编号进行汇总,统计每种产品的销售数量和金额select prod_id,sum(qty) totqty,sum(qty*unit_price) totpricefrom sale_itemgroup by prod_id   6、使用convert函数按客户编号统计每个客户1996年的订单总金额select cust_id,sum(tot_amt) totpricefrom saleswhere convert(char(4),order_date,120)=1996group by cust_id    7、查找有销售记录的客户编号、名称和订单总额select a.cust_id,cust_name,sum(tot_amt) totpricefrom customer a,sales bwhere a.cust_id=b.cust_idgroup by a.cust_id,cust_name    8、查找在1997年中有销售记录的客户编号、名称和订单总额select a.cust_id,cust_name,sum(tot_amt) totpricefrom customer a,sales bwhere a.cust_id=b.cust_id and convert(char(4),order_date,120)=1997group by a.cust_id,cust_name    9、查找一次销售最大的销售记录select order_no,cust_id,sale_id,tot_amtfrom saleswhere tot_amt=(select max(tot_amt)from sales)    10、查找至少有3次销售的业务员名单和销售日期select emp_name,order_datefrom employee a,sales b where emp_no=sale_id and a.emp_no in(select sale_idfrom salesgroup by sale_idhaving count(*)>=3)order by emp_name    11、用存在量词查找没有订货记录的客户名称select cust_namefrom customer awhere not exists(select *from sales bwhere a.cust_id=b.cust_id)    12、使用左外连接查找每个客户的客户编号、名称、订货日期、订单金额订货日期不要显示时间,日期格式为yyyy-mm-dd按客户编号排序,同一客户再按订单降序排序输出select a.cust_id,cust_name,convert(char(10),order_date,120),tot_amtfrom customer a left outer join sales b on a.cust_id=b.cust_idorder by a.cust_id,tot_amt desc    13、查找16M DRAM的销售情况,要求显示相应的销售员的姓名、性别,销售日期、销售数量和金额,其中性别用男、女表示select emp_name 姓名, 性别= case a.sex when m then when f then  else end,销售日期= isnull(convert(char(10),c.order_date,120),日期不详),qty 数量, qty*unit_price as 金额from employee a, sales b, sale_item c,product dwhere d.prod_name=16M DRAM and d.prod_id=c.prod_id anda.emp_no=b.sale_id and b.order_no=c.order_no   14、查找每个人的销售记录,要求显示销售员的编号、姓名、性别、产品名称、数量、单价、金额和销售日期select emp_no 编号,emp_name 姓名, 性别= case a.sex when m then when f then  else end,prod_name 产品名称,销售日期= isnull(convert(char(10),c.order_date,120),日期不详),qty 数量, qty*unit_price as 金额from employee a left outer join sales b on a.emp_no=b.sale_id , sale_item c,product dwhere d.prod_id=c.prod_id and b.order_no=c.order_no   15、查找销售金额最大的客户名称和总货款select cust_name,d.cust_sumfrom customer a,(select cust_id,cust_sumfrom (select cust_id, sum(tot_amt) as cust_sumfrom salesgroup by cust_id ) bwhere b.cust_sum = ( select max(cust_sum)from (select cust_id, sum(tot_amt) as cust_sumfrom salesgroup by cust_id ) c )) dwhere a.cust_id=d.cust_id       26、选取编号界于C0001C0004的客户编号、客户名称、客户地址。select CUST_ID,cust_name,addrfrom 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 employeeset salary=salary*1.03where dept=业务    29、由employee表中查找出薪水最低的员工信息。select *from employeewhere 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_nofrom customer a join sales bon 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 saleswhere tot_amt>all(select tot_amt from sales where sale_id=E0013and 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_itemwhere prod_id=P0001    33、找出公司女员工所接的定单select sale_id,tot_amtfrom saleswhere sale_id in (select sale_id from employeewhere 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_hiredfrom employee ajoin employee bon (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_namefrom employee where emp_no in(select sale_idfrom sales group by sale_idhaving sum(tot_amt)<232000)        16、查找销售总额少于1000元的销售员编号、姓名和销售额select emp_no,emp_name,d.sale_sumfrom employee a,(select sale_id,sale_sumfrom (select sale_id, sum(tot_amt) as sale_sumfrom salesgroup by sale_id ) bwhere b.sale_sum <1000 ) dwhere a.emp_no=d.sale_id    17、查找至少销售了3种商品的客户编号、客户名称、商品编号、商品名称、数量和金额select a.cust_id,cust_name,b.prod_id,prod_name,d.qty,d.qty*d.unit_pricefrom customer a, product b, sales c, sale_item dwhere a.cust_id=c.cust_id and d.prod_id=b.prod_id and c.order_no=d.order_no and a.cust_id in (select cust_idfrom (select cust_id,count(distinct prod_id) prodidfrom (select cust_id,prod_idfrom sales e,sale_item fwhere e.order_no=f.order_no) ggroup by cust_idhaving count(distinct prod_id)>=3) h )    18、查找至少与世界技术开发公司销售相同的客户编号、名称和商品编号、商品名称、数量和金额select a.cust_id,cust_name,d.prod_id,prod_name,qty,qty*unit_pricefrom customer a, product b, sales c, sale_item dwhere a.cust_id=c.cust_id and d.prod_id=b.prod_id and c.order_no=d.order_no and not exists(select f.*from customer x ,sales e, sale_item fwhere cust_name=世界技术开发公司 and x.cust_id=e.cust_id ande.order_no=f.order_no and not exists( select g.*from sale_item g, sales hwhere g.prod_id = f.prod_id and g.order_no=h.order_no andh.cust_id=a.cust_id))    19、查找表中所有姓刘的职工的工号,部门,薪水select emp_no,emp_name,dept,salaryfrom employeewhere emp_name like 刘%    20、查找所有定单金额高于2000的所有客户编号select cust_idfrom saleswhere tot_amt>2000   21、统计表中员工的薪水在4000-6000之间的人数select count(*)as 人数from employeewhere salary between 4000 and 6000    22、查询表中的同一部门的职工的平均工资,但只查询"住址"是"上海市"的员工select avg(salary) avg_sal,dept from employee where addr like 上海市%group by dept    23、将表中住址为"上海市"的员工住址改为"北京市"update employee set addr like 北京市where addr like 上海市    24、查找业务部或会计部的女员工的基本信息。select emp_no,emp_name,deptfrom employee where sex=Fand dept in (业务,会计)    25、显示每种产品的销售金额总和,并依销售金额由大到小输出。select prod_id ,sum(qty*unit_price)from sale_item group by prod_idorder by sum(qty*unit_price) desc