数据库第十四次作业--- 电子商城项目

• 安装并配置MySQL

1. 打开控制台
2. 登录MySQL
3. 

• 数据库、表的基本操作

1. 创建电子商城数据库“mall_姓名全拼”
2. 
3. 使用电子商城数据库
4. 
5. 创建用户表“user_姓名全拼”，表中字段信息如下：

 代码：

create table user_chengweiqiang(
     phone char(11) comment"注册手机号" primary key,
    -> username varchar(20) comment"用户名" not null unique,
    -> password varchar(20) comment"密码" not null,
    -> question text comment"找回密码问题" not null,
    -> answer text comment"找回密码问题答案" not null);

字段名	数据类型	长度	主、外键	其他约束	备注信息
phone	char	11	主键		注册手机号
username	varchar	20		非空，唯一	用户名
password	varchar	20		非空	密码
question	text			非空	找回密码问题
answer	text			非空	找回密码问题答案

1. 创建卖家信息表“seller_姓名全拼”，表中字段信息如下：

2. create table seller_chengweiqiang(
       -> id char(16) comment"卖家id" primary key,
       -> phone char(11) comment"注册手机号" not null unique,
       -> open_date date comment"开业时间" not null,
       -> name varchar(50) comment"店铺名称" not null,
       -> nickname varchar(30) comment"掌柜名称" not null,
       -> constraint fk_phone foreign key(phone) references user_chengweiqiang(phone));

   

字段名	数据类型	长度	主、外键	其他约束	备注信息
id	char	16	主键		卖家ID(S_DATE_XXXXX)
phone	char	11	外键(user.phone)	非空，唯一	注册手机号
open_date	date			非空	开业时间
name	varchar	50		非空	店铺名称
nickname	varchar	30		非空	掌柜昵称

1. 创建买家信息表“buyer_姓名全拼”，表中字段信息如下：

2. create table buyer_chengweiqiang(
       -> id char(16) comment"买家ID(B_DATE_XXXX" primary key ,
       -> phone char(11) comment"注册手机号" not null unique,
       -> nickname varchar(30) comment"买家昵称" not null,
       -> gender enum("miss","mr") comment"性别" default"miss",
       -> height int(3) comment"身高",
       -> weight double comment"体重",
       -> constraint fk1_phone foreign key(phone) references user_chengweiqiang(phone));

   

字段名	数据类型	长度	主、外键	其他约束	备注信息
id	char	16	主键		买家ID(B_DATE_XXXXX)
phone	char	11	外键(user.phone)	非空，唯一	注册手机号
nickname	varchar	30		非空	买家昵称
gender	enum(“miss”,”mr”)			默认miss	性别
height	int	3			身高cm
weight	double				体重kg

1. 创建地址表“address_姓名全拼”，表中字段信息如下：

create table address_chengweiqiang(
    -> id char(16) comment"地址" primary key,
    -> buyer_id char(16) comment"买家id" not null,                   ,
    -> contact_phone char(11) comment"收货人联系方式" not null ,
    -> detail_address text comment"详细地址" not null,
    -> is_default enum("yes","no") comment"是 否默认地址" default"no",
    -> constraint fk2_buyer_id foreign key(buyer_id) references buyer_chengweiqiang(id));

 

字段名	数据类型	长度	主、外键	其他约束	备注信息
id	char	16	主键		mall_chengweiqiangXXXX)
buyer_id	char	16	外键(buyer.id)	非空	买家ID
contact_phone	char	11		非空	收货人联系方式
detail_address	text			非空	详细地址
is_default	enum(“yes”,”no”)			默认 no	是否默认地址

1. 创建产品种类表“product_type_姓名全拼”，表中字段信息如下：

• create table product_chengweiqiang(
      -> code char(6) comment"产品种类编码(TXXXXX)" primary key,
      -> name varchar(30) comment"产品种类名称" not null);

  

字段名	数据类型	长度	主、外键	其他约束	备注信息
code	char	6	主键		产品种类编码(TXXXXX)
name	varchar	30		非空	产品种类名称

1. 创建产品表“product_姓名全拼”，表中字段信息如下：

2. create table product_chengweiqiang(
       -> id char(16) comment"产品编号(P_DATE_XXXXX)" primary key,
       -> seller_id char(16) comment"卖家id" not null,
       -> type_id char(6) comment"产品种类编码" not null,
       -> name varchar(100) comment"产品名称" not  null ,
       -> priture text comment"产品展示图",
       -> unit_price double comment"单价" not null,
       -> quantity int(10) comment"库存数量" default"100",
       -> constraint fk3_seller_id foreign key (seller_id) references seller_chengweiqiang(id),
       -> constraint fk4_type_id foreign key (type_id) references product_type(code));

   

字段名	数据类型	长度	主、外键	其他约束	备注信息
id	char	16	主键		产品编号(P_DATE_XXXXX)
seller_id	char	16	外键(seller.id)	非空	卖家ID
type_id	char	6	外键(product_type.code)	非空	产品种类编码
name	varchar	100		非空	产品名称
picture	text				产品展示图
unit_price	double			非空	单价
quantity	int	10		默认 100	库存数量

1. 创建订单表“order_姓名全拼”，表中字段信息如下：

字段名	数据类型	长度	主、外键	其他约束	备注信息
id	char	16	主键		订单编号(O_DATE_XXXXX)
seller_id	char	16	外键(seller.id)	非空	卖家ID
buyer_id	char	16	外键(buyer.id)	非空	买家ID
address_id	char	16	外键(address.id)	非空	地址ID
total_price	double			默认0	总价
actrual_payment	double			默认0	实付款

1. 创建订单详情表“order_detail_姓名全拼”，表中字段信息如下：

2. create table order_detail(
       -> id int(10) primary key auto_increment,
       -> order_id char(16) comment"订单编号" not null ,
       -> product_id char(16) comment"铲平编号" not null,
       -> purchase_quantity int(3) default"1" comment"采购数量",
       -> discount_unit_price double comment"产品折后价格" not null,
       -> constraint fk12_order_id foreign key(order_id) references order_chengweiqiang(id),
       -> constraint fk34_product_id foreign key(product_id) references product_chengweiqiang(id));

   

字段名	数据类型	长度	主、外键	其他约束	备注信息
id	int	10	主键	自增
order_id	char	16	外键(order.id)	非空	订单编号
product_id	char	16	外键(product.id)	非空	产品编号
purchase_quantity	int	3		默认1	采购数量
discount_unit_price	double			非空	产品折后价

插入数据

1. 所有字段批量插入用户表数据

3. insert into user_chengweiqiang values
       -> ("13812345678","anne","annnepassword","favorite book","harry potter"),("18212345678","frank","Frankpassword","Favorite song","lonely"),("13212345678","alan","Alanpassword","First love","carry"),("13112345678","peter","Peterpassword","Who is your father","jack");

phone	username	password	question	answer
13812345678	anne	annnepassword	favorite book	harry potter
18212345678	frank	Frankpassword	Favorite song	lonely
13212345678	alan	Alanpassword	First love	carry
13112345678	peter	Peterpassword	Who is your father

1. 
2. 所有字段批量插入卖家信息表数据

3. insert into seller_chengweiqiang values
       -> ("S_20200703_00001","13812345678","2020-07-03","ledin","ledin"),("S_20201030_00001","18212345678","2020-10-30","hla","hla");

id	phone	open_date	name	nickname
S_20200703_00001	13812345678	2020-07-03	ledin	ledin
S_20201030_00001	18212345678	2020-10-30	hla	hla

1. 指定字段批量插入买家信息表数据

2. insert into buyer_chengweiqiang(id,phone,nickname,height,weight) values
       -> ("B_20200422_00001","13212345678","funny shop","168","52"),("B_20200911_00001","13112345678","cool girl","165","47");

   

id	phone	nickname	height	weight
B_20200422_00001	13212345678	funny shop	168	52
B_20200911_00001	13112345678	cool girl	165	47

1. 指定字段批量插入地址表数据

2.  insert into address_chengweiqiang(id,buyer_id,contact_phone,detail_address) values
       -> ("A_20201103_00004","B_20200422_00001","13212345678","gray street"),("A_20201103_00005","B_20200422_00001","13212345678","funny street"),("A_20201103_00006","B_20200422_00001","13212345678","frank street"),("A_20201103_00007","B_20200911_00001","13112345678","rock street");

   

id	buyer_id	contact_phone	detail_address
A_20201103_00004	B_20200422_00001	13212345678	gray street
A_20201103_00005	B_20200422_00001	13212345678	funny street
A_20201103_00006	B_20200422_00001	13212345678	frank street
A_20201103_00007	B_20200911_00001	13112345678	rock street

1. 所有字段批量插入产品种类表数据

2. insert into product_type values
       -> ("T00001","coat"),
       -> ("T00002","shirt"),
       -> ("T00003","shorts"),
       -> ("T00004","pants"),
       -> ("T00005","jeans"),
       -> ("T00006","polo");

   

code	name
T00001	coat
T00002	shirt
T00003	shorts
T00004	pants
T00005	jeans
T00006	polo

1. 指定字段插入产品表数据

2. insert product_chengweiqiang(id,seller_id,type_id,name,priture,unit_price) values
       -> ("P_20190102_00001","S_20200703_00001","T00003","blue shorts","p123.jpg","168.8");

   

id	seller_id	type_id	name	picture	unit_price
P_20190102_00001	S_20200703_00001	T00003	blue shorts	p123.jpg	168.8

1. 所有字段插入产品表数据

 

insert product_chengweiqiang values
    -> ("P_20190102_00002","S_20200703_00001","T00001","coat","coat1.jpg","62.2","43");

id	seller_id	type_id	name	picture	unit_price	quantity
P_20190102_00002	S_20200703_00001	T00001	coat	coat1.jpg	62.2	43

1. 指定字段插入产品表数据
2. 

 insert product_chengweiqiang(id,seller_id,type_id,name,unit_price) values
    -> ("P_20190203_00001","S_20201030_00001","T00006","black polo","239.9");

id	seller_id	type_id	name	unit_price
P_20190203_00001	S_20201030_00001	T00006	black polo	239.9

1. 所有字段插入产品表数据
2. 

insert product_chengweiqiang values
    -> ("P_20190203_00002","S_20201030_00001","T00005","jeans","12.jpg","198.8","23");

id	seller_id	type_id	name	picture	unit_price	quantity
P_20190203_00002	S_20201030_00001	T00005	jeans	12.jpg	198.8	23

1. 查看产品表所有字段数据
2. 
3. 订单表指定字段插入数据

insert into order_chengweiqiang(id,seller_id,buyer_id,address_id) values
    -> ("O_20201102_00001","S_20200703_00001","B_20200422_00001","A_20201103_00004");

id	seller_id	buyer_id	address_id
O_20201102_00001	S_20200703_00001	B_20200422_00001	A_20201103_00004

1. 订单详情表指定字段插入数据

2. insert into order_detail(order_id,product_id,purchase_quantity,discount_unit_price) values
       -> ("O_20201102_00001","P_20190102_00001","1","150"),
       -> ("O_20201102_00001","P_20190102_00002","2","40");

   

order_id	product_id	purchase_quantity	discount_unit_price
O_20201102_00001	P_20190102_00001	1	150
O_20201102_00001	P_20190102_00002	2	40

id	seller_id	buyer_id	address_id
O_20201102_00002	S_20201030_00001	B_20200911_00001	A_20201103_00007

order_id	product_id	purchase_quantity	discount_unit_price
O_20201102_00002	P_20190203_00001	1	230
O_20201102_00002	P_20190203_00002	2	190

查看订单信息视图中采购数量不为1的数

1. 修改订单详情表中O_20201102_00001订单P_20190102_00002产品的采购数量为1

2. update order_detail set purchase_quantity="1" where product_id="P_20190102_00002";

   

   查看O_20201102_00001订单的订单编号、产品编号、库存数量、采购数量、采购后数量（库存数量-采购数量）、产品单价、折后单价

3. select a.order_id,a.product_id,b.quantity ,b.quantity-a.purchase_quantity 采购后数量,
       -> b.unit_price,a.discount_unit_price from order_detail a inner join product_chengweiqiang b
       -> on a.product_id = b.id;

   

4. 修改产品表中库存数量为采购后数量

5. update product_chengweiqiang set quantity="99" where id="P_20190102_00001";
   update product_chengweiqiang set quantity="42" where id="P_20190102_00002";

   

7. 根据订单号分组查看订单号、订单总价（sum(采购数量*产品单价)）、实付款（sum(采购数量*折扣单价)）

8. select a.order_id,a.purchase_quantity*b.unit_price 订单总价格,a.purchase_quantity*discount_unit_price 实付款 from order_detail a inner join product_chengweiqiang b on a.product_id = b.id;

9. 
10. 根据上述代码计算出的值修改订单表中O_20201102_00001订单的总价、实付款数据

11. update order_chengweiqiang set total_proce = "239.9",actrual_payment="230" where id="O_20201102_00002";

12. 
13. 查看O_20201102_00001订单的订单编号、店铺名称、买家昵称、详细地址、产品名称、采购数量、折后价

14. select a.id,b.name,c.nickname,d.detail_address,e.name,f.purchase_quantity,f.discount_unit_price from order_chengweiqiang a inner join seller_chengweiqiang b on a.seller_id = b.id
        -> inner join buyer_chengweiqiang c on a.buyer_id = c.id
        -> inner join address_chengweiqiang d on a.address_id = d.id
        -> inner join product_chengweiqiang e on b.id = e.seller_id
        -> inner join order_detail f on a.id=f.order_id
        -> where f.order_id ="O_20201102_00001";

    

15. 任务四、使用事务操作表中数据

16. 开启事务

17.  start transaction;

18. 订单表指定字段插入数据

19. insert into order_chengweiqiang(id ,seller_id ,buyer_id ,address_id ) values
        -> ("O_20201102_00002","S_20201030_00001","B_20200911_00001","A_20201103_00007");

    

21. 订单详情表指定字段插入数

22. insert into order_detail (order_id,product_id ,purchase_quantity,discount_unit_price)values
        -> ("O_20201102_00002","P_20190203_00001","1","230"),
        -> ("O_20201102_00002","P_20190203_00002","2","190");

    

23. 查看O_20201102_00002订单的订单编号、产品编号、库存数量、采购数量、采购后数量（库存数量-采购数量）、产品单价、折后单价

24. select a.order_id,a.product_id,a.purchase_quantity,b.quantity,b.quantity-a.purchase_quantity 采购后数量,b.unit_price,a.discount_unit_price from order_detail a inner join product_chengweiqiang b on a.product_id = b.id;

    

25. 修改产品表中库存数量为采购后数量

26.  update product_chengweiqiang set quantity = "99" where id ="P_20190102_00001" or id="P_20190203_00001";
    
    update product_chengweiqiang set quantity = "42" where id ="P_20190203_00002";
    
     update product_chengweiqiang set quantity = "21" where id ="P_20190203_00002";

27. 根据订单号分组查看订单总价（sum(采购数量*产品单价)）、实付款（sum(采购数量*折扣单价)）

28. select a.order_id,a.purchase_quantity*b.unit_price 订单总价格,a.purchase_quantity*discount_unit_price 实付款 from order_detail a inner join product_chengweiqiang b on a.product_id = b.id;

    

29. 根据上述代码计算出的值修改订单表中O_20201102_00002订单的总价、实付款数据

30. update order_chengweiqiang set total_proce = "239.9",actrual_payment="230" where id="O_20201102_00002";

    

31. 查看订单表所有字段数据
32. 
33. 查看订单详情表所有字段数据
34. 
35. 提交事务
36. 
37. 开启事务
38. 
39. 修改订单详情表中O_20201102_00002订单P_20190203_00002产品的折后单价为180

40. update order_detail set discount_unit_price="180" where order_id="O_20201102_00002" and product_id="P_20190203_00002";

    

41. 修改订单详情表中O_20201102_00002订单P_20190203_00001产品的折后单价为200

42. update order_detail set discount_unit_price="200" where order_id="O_20201102_00002" and product_id="P_20190203_00001";

    

43. 根据订单号分组查看实付款（sum(采购数量*折扣单价)）

44. select a.order_id,a.purchase_quantity*discount_unit_price 实付款 from order_detail a inner join product_chengweiqiang b on a.product_id = b.id;

    

45. 根据上述代码计算出的值修改订单表中O_20201102_00002订单的实付款数据

46. update order_chengweiqiang set actrual_payment="360" where id="O_20201102_00002";

    

47. 查看订单详情表所有字段数据
48. 
49. 回滚事务
50. 
51. 查看O_20201102_00002订单的订单编号、店铺名称、买家昵称、详细地址、产品名称、采购数量、折后价格

52. select a.id,b.name,c.nickname,d.detail_address,e.name,f.purchase_quantity,f.discount_unit_price from order_chengweiqiang a inner join seller_chengweiqiang b on a.seller_id = b.id
         inner join buyer_chengweiqiang c on a.buyer_id = c.id
         inner join address_chengweiqiang d on a.address_id = d.id
         inner join product_chengweiqiang e on b.id = e.seller_id
         inner join order_detail f on a.id=f.order_id
         where f.order_id ="O_20201102_00002";

    

53. 查看买家昵称、性别、联系方式、详细地址、是否默认地址

54. select a.nickname,a.gender,a.phone,b.detail_address,b.is_default from buyer_chengweiqiang a inner join address_chengweiqiang b on a.id=b.buyer_id;

    

55. 创建买家信息视图“view_buyer_info_姓名全拼”查看上述内容

56. create view view_buyer_info_chengweiqiang as select a.nickname,a.gender,a.phone,b.detail_address,b.is_default from buyer_chengweiqiang a inner join address_chengweiqiang b on a.id=b.buyer_id;

    

57. 查看买家信息视图买家昵称含有“h”的数据

58. select * from view_buyer_info_chengweiqiang where nickname like "%h%";

    

59. 查看产品种类编码、产品种类名称、产品名称、单价、库存

60. select a.code,a.name,b.name,b.unit_price,b.quantity from product_type a
        -> inner join product_chengweiqiang b on a.code=b.type_id;

    

61. 创建产品信息视图“view_product_ info_姓名全拼”查看上述内容

62. create view view_product_info_chengweiqiang as select a.code,a.name,b.name1,b.unit_price,b.quantity from product_type a inner join product_chengweiqiang b on a.code=b.type_id;
    
    

63. 
64. 查看订单详情表中的所有产品名称

65. select a.product_id,b.name1 from order_detail a inner join product_chengweiqiang b on a.product_id = b.id;

    

66. 查看产品信息视图中已经有过订单销售记录的产品数据（子查询 in）
67. 
68. 查看订单编号、店铺名称、买家昵称、详细地址、产品名称、采购数量、折后价格

69. select a.id,b.name,c.nickname,d.detail_address,e.name1,f.purchase_quantity,f.discount_unit_price from order_chengweiqiang a inner join seller_chengweiqiang b on a.seller_id = b.id
        ->      inner join buyer_chengweiqiang c on a.buyer_id = c.id
        ->      inner join address_chengweiqiang d on a.address_id = d.id
        ->      inner join product_chengweiqiang e on b.id = e.seller_id
        ->      inner join order_detail f on a.id=f.order_id
        ->     ;

70. 创建订单信息视图“view_order_ info_姓名全拼”查看上述内容

71. create view view_order_info_chengweiqiang as select a.id,b.name,c.nickname,d.detail_address,e.name1,f.purchase_quantity,f.discount_unit_price from order_chengweiqiang a inner join seller_chengweiqiang b on a.seller_id = b.id inner join buyer_chengweiqiang c on a.buyer_id = c.id inner join address_chengweiqiang d on a.address_id = d.id inner join product_chengweiqiang e on b.id = e.seller_id inner join order_detail f on a.id=f.order_id;

    

任务六、备份数据库

1. 备份所有数据库，文件名为“all_姓名全拼.sql”（截两张图 命令+文件）

2. mysqldump -u root -p123456 --all-databases>D:\MYSQL\mysql-8.0.28-winx64\all_chengweiqiang.sql

   

3. 
4. 备份电子商城数据库，文件名为“mall_姓名全拼.sql”（截两张图 命令+文件）

5. mysqldump -u root -p123456 mall_chengweiqiang>D:\MYSQL\mysql-8.0.28-winx64\mll_chengweiqiang.sql

   

6. 
7. 删除电子商城数据库
8. 
9. 创建电子商城数据库“mall_姓名全拼”
10. 
11. 退出MySQL登录
12. 
13. 执行电子商城数据库备份文件
14. 
15. 登录MySQL
16. 
17. 使用电子商城数据库
18. 
19. 查看所有表
20.