ehxz 发表于 2008-2-20 09:47:53

五十四条DB2常用语句集萃

  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') birthday
  from employee

  order 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,title

  from employee

  where emp_name<>'喻自强' and dept in

  (select dept from employee

  where 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 employee

  group 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 totprice

  from sale_item a,product b

  where 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) totprice

  from sale_item

  group 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) totprice

  from sales

  where convert(char(4),order_date,120)='1996'

  group 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) totprice

  from customer a,sales b

  where a.cust_id=b.cust_id

  group 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) totprice

  from customer a,sales b

  where a.cust_id=b.cust_id and convert(char(4),order_date,120)='1997'

  group 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_amt

  from sales

  where 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_date

  from employee a,sales b

  where emp_no=sale_id and a.emp_no in

  (select sale_id

  from sales

  group by sale_id

  having 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_name

  from customer a

  where not exists

  (select *

  from sales b

  where 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_amt

  from customer a left outer join sales b on a.cust_id=b.cust_id

  order 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 '男'

  when 'f' then '女'

  else '未'

  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 d

  where d.prod_name='16M DRAM' and d.prod_id=c.prod_id and

  a.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 '男'

  when 'f' then '女'

  else '未'

  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 d

  where 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_sum

  from customer a,

  (select cust_id,cust_sum

  from (select cust_id, sum(tot_amt) as cust_sum

  from sales

  group by cust_id ) b

  where b.cust_sum =

  ( select max(cust_sum)

  from (select cust_id, sum(tot_amt) as cust_sum

  from sales

  group by cust_id ) c )

  ) d

  where a.cust_id=d.cust_id

  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_sum

  from employee a,

  (select sale_id,sale_sum

  from (select sale_id, sum(tot_amt) as sale_sum

  from sales

  group by sale_id ) b

  where b.sale_sum <1000

  ) d

  where 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_price

  from customer a, product b, sales c, sale_item d

  where 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_id

  from (select cust_id,count(distinct prod_id) prodid

  from (select cust_id,prod_id

  from sales e,sale_item f

  where e.order_no=f.order_no) g

  group by cust_id

  having 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_price

  from customer a, product b, sales c, sale_item d

  where 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 f

  where cust_name='世界技术开发公司' and x.cust_id=e.cust_id and

  e.order_no=f.order_no and not exists

  ( select g.*

  from sale_item g, sales h

  where g.prod_id = f.prod_id and g.order_no=h.order_no and

  h.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,salary

  from employee

  where 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_id

  from sales

  where 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 employee

  where 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,dept

  from employee

  where sex='F'and 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_id

  order by sum(qty*unit_price) desc

  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

  40、 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)

  41、 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

  42、 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

  43、 求每位客户订购的每种产品的总数量及平均单价,并按客户号,产品号从小到大排列。

  Select cust_id,prod_id,sum(qty),sum(qty*unit_price)/sum(qty)

  From sales a, sale_item b

  Where a.order_no=b.order_no

  Group by cust_id,prod_id

  Order by cust_id,prod_id

  44、 查询订购了三种以上产品的订单号。

  Select order_no

  from sale_item

  Group by order_no

  Having count(*)>3

  45、 查询订购的产品至少包含了订单3号中所订购产品的订单。

  Select distinct order_no

  From sale_item a

  Where order_no<>'3'and not exists (

  Select * from sale_item b where order_no ='3' and not exists

  (select * from sale_item c where c.order_no=a.order_no and c.prod_id=b.prod_id))

  46、 在sales表中查找出订单金额大于"E0013业务员在1996/11/10这天所接每一张订单的金额"的所有订单,并显示承接这些订单的业务员和该订单的金额。

  Select sale_id,tot_amt from sales

  where tot_amt>all(select tot_amt

  from sales

  where sale_id='E0013' and order_date='1996-11-10')

  47、 查询末承接业务的员工的信息。

  Select *

  From employee a

  Where not exists

  (select * from sales b where a.emp_no=b.sale_id)

  48、 查询来自上海市的客户的姓名,电话、订单号及订单金额。

  Select cust_name,tel_no,order_no,tot_amt

  From customer a ,sales b

  Where a.cust_id=b.cust_id and addr='上海市'

  49、 查询每位业务员各个月的业绩,并按业务员编号、月份降序排序。

  Select sale_id,month(order_date), sum(tot_amt)

  from sales

  group by sale_id,month(order_date)

  order by sale_id,month(order_date) desc

  50、 求每种产品的总销售数量及总销售金额,要求显示出产品编号、产品名称,总数量及总金额,并按产品号从小到大排列。

  Select a.prod_id,prod_name,sum(qty),sum(qty*unit_price)

  From sale_item a,product b

  Where a.prod_id=b.prod_id

  Group by a.prod_id,prod_name

  Order by a.prod_id

  51、 查询总订购金额超过'C0002'客户的总订购金额的客户号,客户名及其住址。

  Select cust_id, cust_name,addr

  From customer

  Where cust_id in (select cust_id from sales

  Group by cust_id

  Having sum(tot_amt)>

  (Select sum(tot_amt) from sales where cust_id='C0002'))

  52、 查询业绩最好的的业务员号、业务员名及其总销售金额。

  select emp_no,emp_name,sum(tot_amt)

  from employee a,sales b

  where a.emp_no=b.sale_id

  group by emp_no,emp_name

  having sum(tot_amt)=

  (select max(totamt)

  from (select sale_id,sum(tot_amt) totamt

  from sales

  group by sale_id) c)

  53、 查询每位客户所订购的每种产品的详细清单,要求显示出客户号,客户名,产品号,产品名,数量及单价。

  select a.cust_id, cust_name,c.prod_id,prod_name,qty, unit_price

  from customer a,sales b, sale_item c ,product d

  where a.cust_id=b.cust_id and b.order_no=c.order_no and c.prod_id=d.prod_id

  54、 求各部门的平均薪水,要求按平均薪水从小到大排序。

  select dept,avg(salary)

  from employee

  group by dept

  order by avg(salary)
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