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,並按部門排序輸出,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、查找銷售總額少於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於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，並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、選取編號界於'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於"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，並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，並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，並按客戶號，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於"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，並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，並按業務員編號、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，並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)
26、選取編號界於'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
