1、查找員工的編號、姓名、部門和出生日期，如果出生日期為空值，顯示日期不詳,并按部門排序輸出,日期格式為yyyy-mm-dd

select emp_no,emp_name,dept,isnull(convert(char(10),birthday,120),'日期不詳') birthday

from employee

order by dept

2、查找與喻自強在同一個單位的員工姓名、性別、部門和職稱

select emp_no,emp_name,dept,title

from employee

where emp_name<>'喻自強' and dept in

(select dept from employee

where emp_name='喻自強')

3、按部門進行匯總，統計每個部門的總工資

select dept,sum(salary)

from employee

group by dept

4、查找商品名稱為14寸顯示器商品的銷售情況，顯示該商品的編號、銷售數量、單價和金額

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寸顯示器'

5、在銷售明細表中按產品編號進行匯總，統計每種產品的銷售數量和金額

select prod_id,sum(qty) totqty,sum(qty*unit_price) totprice

from sale_item

group by prod_id

6、使用convert函數按客戶編號統計每個客戶1996年的訂單總金額

select cust_id,sum(tot_amt) totprice

from sales

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

group by cust_id

7、查找有銷售記錄的客戶編號、名稱和訂單總額

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年中有銷售記錄的客戶編號、名稱和訂單總額

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、查找一次銷售最大的銷售記錄

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次銷售的業務員名單和銷售日期

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、用存在量詞查找沒有訂貨記錄的客戶名稱

select cust_name

from customer a

where not exists

(select *

from sales b

where a.cust_id=b.cust_id)

12、使用左外連接查找每個客戶的客戶編號、名稱、訂貨日期、訂單金額訂貨日期不要顯示時間，日期格式為yyyy-mm-dd按客戶編號排序，同一客戶再按訂單降序排序輸出

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的銷售情況，要求顯示相應的銷售員的姓名、性別，銷售日期、銷售數量和金額，其中性別用男、女表示

select emp_name 姓名, 性別= case a.sex when 'm' then '男'

when 'f' then '女'

else '未'

end,

銷售日期= isnull(convert(char(10),c.order_date,120),'日期不詳'),

qty 數量, qty*unit_price as 金額

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、查找每個人的銷售記錄，要求顯示銷售員的編號、姓名、性別、產品名稱、數量、單價、金額和銷售日期

select emp_no 編號,emp_name 姓名, 性別= case a.sex when 'm' then '男'

when 'f' then '女'

else '未'

end,

prod_name 產品名稱,銷售日期= isnull(convert(char(10),c.order_date,120),'日期不詳'),

qty 數量, qty*unit_price as 金額

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、查找銷售金額最大的客戶名稱和總貨款

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、查找銷售總額少于1000元的銷售員編號、姓名和銷售額

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、查找至少銷售了3種商品的客戶編號、客戶名稱、商品編號、商品名稱、數量和金額

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、查找至少與世界技術開發公司銷售相同的客戶編號、名稱和商品編號、商品名稱、數量和金額

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='世界技術開發公司' 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、查找表中所有姓劉的職工的工號，部門，薪水

select emp_no,emp_name,dept,salary

from employee

where emp_name like '劉%'

20、查找所有定單金額高于2000的所有客戶編號

select cust_id

from sales

where tot_amt>2000

21、統計表中員工的薪水在4000-6000之間的人數

select count(*)as 人數

from employee

where salary between 4000 and 6000

22、查詢表中的同一部門的職工的平均工資，但只查詢'住址'是'上海市'的員工

select avg(salary) avg_sal,dept

from employee

where addr like '上海市%'

group by dept

23、將表中住址為'上海市'的員工住址改為'北京市'

update employee

set addr like '北京市'

where addr like '上海市'

24、查找業務部或會計部的女員工的基本信息

select emp_no,emp_name,dept

from employee

where sex='F'and dept in ('業務','會計')

25、顯示每種產品的銷售金額總和，并依銷售金額由大到小輸出

select prod_id ,sum(qty*unit_price)

from sale_item

group by prod_id

order by sum(qty*unit_price) desc

26、選取編號界于'C0001'和'C0004'的客戶編號、客戶名稱、客戶地址

select CUST_ID,cust_name,addr

from customer

where cust_id between 'C0001' AND 'C0004'

27、計算出一共銷售了幾種產品

select count(distinct prod_id) as '共銷售產品數'

from sale_item

28、將業務部員工的薪水上調3%

update employee

set salary=salary*1.03

where dept='業務'

29、由employee表中查找出薪水最低的員工信息

select *

from employee

where salary=

(select min(salary )

from employee )

30、使用join查詢客戶姓名為'客戶丙'所購貨物的'客戶名稱','定單金額','定貨日期','電話號碼'

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 '客戶丙'

31、由sales表中查找出訂單金額大于'E0013業務員在1996/10/15這天所接每一張訂單的金額'的所有訂單

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、計算'P0001'產品的平均銷售單價

select avg(unit_price)

from sale_item

where prod_id='P0001'

33、找出公司女員工所接的定單

select sale_id,tot_amt

from sales

where sale_id in

(select sale_id from employee

where sex='F')

34、找出同一天進入公司服務的員工

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、找出目前業績超過232000元的員工編號和姓名

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、查詢出employee表中所有女職工的平均工資和住址在'上海市'的所有女職工的平均工資

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表中查詢薪水超過員工平均薪水的員工信息

Select *

from employee

where salary>( select avg(salary)

from employee)

38、 找出目前銷售業績超過10000元的業務員編號及銷售業績，并按銷售業績從大到小排序

Select sale_id ,sum(tot_amt)

from sales

group by sale_id

having sum(tot_amt)>10000

order by sum(tot_amt) desc

39、 找出公司男業務員所接且訂單金額超過2000元的訂單號及訂單金額

Select order_no,tot_amt

From sales ,employee

Where sale_id=emp_no and sex='M' and tot_amt>2000

40、 查詢sales表中訂單金額最高的訂單號及訂單金額

Select order_no,tot_amt from sales

where tot_amt=(select max(tot_amt) from sales)

41、 查詢在每張訂單中訂購金額超過4000元的客戶名及其地址

Select cust_name,addr from customer a,sales b

where a.cust_id=b.cust_id and tot_amt>4000

42、 求出每位客戶的總訂購金額，顯示出客戶號及總訂購金額，并按總訂購金額降序排列

Select cust_id,sum(tot_amt) from sales

Group by cust_id

Order by sum(tot_amt) desc

43、 求每位客戶訂購的每種產品的總數量及平均單價，并按客戶號，產品號從小到大排列

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、 查詢訂購了三種以上產品的訂單號

Select order_no

from sale_item

Group by order_no

Having count(*)>3

45、 查詢訂購的產品至少包含了訂單3號中所訂購產品的訂單

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表中查找出訂單金額大于'E0013業務員在1996/11/10這天所接每一張訂單的金額'的所有訂單，并顯示承接這些訂單的業務員和該訂單的金額

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、 查詢末承接業務的員工的信息

Select *

From employee a

Where not exists

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

48、 查詢來自上海市的客戶的姓名，電話、訂單號及訂單金額

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、 查詢每位業務員各個月的業績，并按業務員編號、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、 求每種產品的總銷售數量及總銷售金額，要求顯示出產品編號、產品名稱，總數量及總金額，并按產品號從小到大排列

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、 查詢總訂購金額超過'C0002'客戶的總訂購金額的客戶號，客戶名及其住址

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、 查詢業績最好的的業務員號、業務員名及其總銷售金額

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、 查詢每位客戶所訂購的每種產品的詳細清單，要求顯示出客戶號，客戶名，產品號，產品名，數量及單價

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、 求各部門的平均薪水，要求按平均薪水從小到大排序

select dept,avg(salary)

from employee

group by dept

order by avg(salary)