MySQL training report [with source code]

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Catalog

Task a ： Background setting

1. Open console ：

2. Sign in MySQL

Task 2 ： Establishment of fraudster database

1. First you create a fraud system database “scam_ Spell the name ”

2. Next, use the fraud system database

3. Then create the user table “user_ Spell the name ”, The field information in the table is as follows ：

4. Then create the driver information table “driver_info_ Spell the name ”, The field information in the table is as follows ：

​ edit 5. Then create a customer service information table “Customer_info_ Spell the name ”, The field information in the table is as follows ：

6. Then create the canon information table card_farming_ Spell the name , The field information in the table is as follows ：

7. Create a Kanon bank card table “card_farm _ Spell the name ”, The field information in the table is as follows ：

8. Create a victim information table “victim_info _ Spell the name ”, The field information in the table is as follows ：

9. Create victim bank card table “victim_card _ Spell the name ”, The field information in the table is as follows ：

10. Create a fraud table “swindle_info _ Spell the name ”, The field information in the table is as follows ：

11. Create a fraud detail table “scam_info_ Spell the name ”, The field information in the table is as follows ：

12.    Create a log table “log_ Spell the name ”, The field information in the table is as follows ：

13.    Create triggers to facilitate updating log tables （ All tables are required to add , Delete , Change Will be recorded in the log table （log））

Task three ： The criminal recruits

1. Insert all fields into user table data in batch

 2. All fields are inserted into driver information table data in batch

 3. Specify fields to insert customer service information table data in batches

4. Specify fields to batch insert data in the canon table

5. View log table

Task 4 ： Buy leek information

1. Specify the field to insert the victim information table data

2. After chatting, I learned that Zhang had recently moved to Fandou community and changed his home address to Fandou community

After verification, I learned that Li had changed his telephone number （ Change Li's telephone number to ：13567787659）

Mission 5： Cannon buys bank cards

1. All fields are inserted into the card table data of the Agricultural Bank of China in batches

Task six ： Wang was cheated

1. Members begin to act , They aimed at the first leek ： Wang mou , Let you tell them about Wang

2. Insert data into the victim's bank card table

3. Insert information into the fraud table

4. Insert data into the fraud details table

5. Insert data into the fraud details table

6. So you decide to inquire about the distribution of stolen money according to the output （ Check the fraud of Wang when he was cheated twice ID, Customer service ID, Driver ID, Amount of fraud ）

Task seven ： Zhang was cheated …..

1. Members begin to act , They aimed at the second leek ： zhang , Let you tell them about Zhang

（ Query Zhang's gender , Company , Recent events , Home address ）

2. Insert data into the victim's bank card

3. Insert data into the fraud table

4. Insert data into the fraud details table

5. Insert data into the fraud details table

Mission 8： Create a cheated view

1. Create a cheated view view_vc_ Spell the name （ The view contains victim information , Fraud details ）

2. Create a cheated view view_scam_ Spell the name （ The view contains information about the fraudster ）

Mission 9： Li was cheated

1. Members begin to act , They aimed at the second leek ： Li Mou , You should check the information of Li as usual

（ Query the gender of Li , Company , Recent events , Home address ）.

2. Insert data into the victim's bank card

3. Insert data into the fraud table

 4. I learned that Li had just experienced divorce , The criminal gang pretended to be an acquaintance Li had not seen for a long time , Comfort Li , Then borrow two sums of money in case of emergencies .

Task ten ： The police caught the fraudster Back up the fraud company database

1. Back up all databases , The file named “all_ Spell the name .sql”（ Cut two pictures command + file ）

2. Back up the fraud database , The file named “scam_ Spell the name .sql”（ Cut two pictures command + file ）

3. Delete the fraud database

4. Create a fraud database “scam_ Spell the name ”

5. sign out MySQL Sign in

6. Execute fraud database backup file

 7. Sign in MySQL

8. Using the fraud database

 9. View all tables （ Look at the log table , Record all your hard work ）

---

• Task a ： Background setting

You are a new college student , As a newcomer to the society, you heard that there is a high paying job in northern Myanmar . It seems that you are glad to go . It turned out that he was deceived , Just as you were about to be executed , You just heard that this fraud organization is transforming into telecom fraud , There is a shortage of computer talents , In order to save your life , So he volunteered , Tell the criminals that they are computer majors who have practiced for two and a half years , So you were taken to the head of the criminal organization xx In front of

The leader asked you to show off your skills , Then consider whether to let you join the gang or execute you

So you turn on the computer

1. Open console ：

2. Sign in MySQL

You introduced... To the leader MySQL, Told her MySQL The power of .

Although the leader doesn't understand , But I was shocked , I decided not to kill you , Agree to ask you to join the gang .

The leader sighed ： Read less , If I had learned this in those days, I wouldn't have learned this wrong way .

The leader first introduced you to several members of the team , You also know the membership of the fraudster , Duziteng, the eldest brother of the gang （ President du ）, The second brother Wei feeds oxygen （ President Wei ）, Third brother fan Tong （ Fan Zhong ）

（ At present, only these three people are known , Seeing the three of them, you can't help feeling , Just these three cheated me ）

• Task 2 ： Establishment of fraudster database

After you joined the gang , Mr. Du hurriedly urged you to use MySQL Build a database of fraudsters. You learned from President du , After the basic routine information of criminals, they start to build data

1. First you create a fraud system database “scam_ Spell the name ”

create database scam_zhongjinlin;

2. Next, use the fraud system database

use scam_zhongjinlin;

3. Then create the user table “user_ Spell the name ”, The field information in the table is as follows ：

Field name	data type	length	Lord 、 Foreign keys	Other constraints	Notes
id	char	16			user ID（u_date_xxxxx)
phone	char	11	Primary key		User contact information
username	varchar	20		Non empty , only	user name
password	varchar	20		Non empty	password
question	text			Non empty	Password recovery problem
answer	text			Non empty	Find the answer to the password question

create table user_zhongjinlin(

    -> id char(16) comment" user ID（u_date_xxxxx)",

    -> phone char(11) comment" User contact information ",

    -> username varchar(20) not null unique comment" user name ",

    -> password varchar(20) not null comment " password ",

    -> question text not null comment" Password recovery problem ",

    -> answer text not null comment" Find the answer to the password question ",

    -> primary key(phone)

-> );

4. Then create the driver information table “driver_info_ Spell the name ”, The field information in the table is as follows ：

Field name	data type	length	Lord 、 Foreign keys	Other constraints	Notes
driver_id	char	16	Primary key		Driver ID（d_date_xxxxx)
phone	char	11	Foreign keys	Non empty	Driver contact information
Entry_time	date			Non empty	Starting time
nickname	varchar	30		Non empty	Driver code

create table driver_into_zhongjinlin(

    -> driver_id char(16) primary key comment " Driver ID（d_date_xxxxx)",

    -> phone char(11) not null comment" Driver contact information ",

    -> Entry_time date not null comment" Starting time ",

    -> nickname varchar(30) not null comment" Driver code ",

    -> constraint fk_phone foreign key(phone) references user_zhongjinlin(phone)

-> );

5. Then create a customer service information table “Customer_info_ Spell the name ”, The field information in the table is as follows ：

Field name	data type	length	Lord 、 Foreign keys	Other constraints	Notes
Customer_id	char	16	Primary key		Customer service ID(c_date_xxxxx)
phone	char	11	Foreign keys	Non empty , only	Customer service contact information
nickname	varchar	30		Non empty	Customer service code
Entry_time	date			Non empty	Starting time

create table customer_into_zhongjinlin(

    -> customer_id char(16) primary key comment" Customer service ID(c_date_xxxxx)",

    -> phone char(11) not null unique comment" Customer service contact information ",

    -> nickname varchar(30) not null comment" Customer service code ",

    -> Entry_time date not null comment" Starting time ",

    -> constraint fk_phone1 foreign key(phone) references driver_into_zhongjinlin(phone)

-> );

6. Then create the canon information table card_farming_ Spell the name , The field information in the table is as follows ：

Field name	data type	length	Lord 、 Foreign keys	Other constraints	Notes
card_fa_id	char	16	Primary key		Cannon ID（f_date_xxxxx)
phone	char	11	Foreign keys	Non empty , only	Canon contact information
nickname	varchar	30		Non empty	Canon code
Entry_time	date			Non empty	Starting time

create table card_farming_zhongjinlin(

    -> card_fa_id char(16) primary key comment" Cannon ID（f_date_xxxxx)",

    -> phone char(11) not null unique comment" Canon contact information ",

    -> nickname varchar(30) not null comment" Canon code ",

    -> Entry_time date not null comment" Starting time ",

    -> constraint fk_phone2 foreign key(phone) references customer_into_zhongjinlin(phone)

-> );

7. Create a Kanon bank card table “card_farm _ Spell the name ”, The field information in the table is as follows ：

Field name	data type	length	Lord 、 Foreign keys	Other constraints	Notes
card_farming_id	char	16	Primary key		Kanon bank card ID（bc_date_xxxxx)
card_fa_id	char	16	Foreign keys		Cannon ID（f_date_xxxxx)
bank_name	char	20			Name of Bank
card_number	char	16		Non empty	Card number
is_deprecated	enum("yes","no")			Default no	Whether to discard
deprecated_time	datetime				Discard time

create table card_farm_zhongjinlin(

    -> card_farming_id char(16) primary key comment" Kanon bank card ID（bc_date_xxxxx)",

    -> card_fa_id char(16) comment" Cannon ID（f_date_xxxxx)",

    -> bank_name char(20) comment" Name of Bank ",

    -> card_number char(16) not null comment" Card number ",

    -> is_deprecated enum("yes","no") default"no" comment" Whether to discard ",

    -> deprecated_time datetime comment" Discard time ",

    -> constraint fk_card_fa_id foreign key(card_fa_id) references

    -> card_farming_zhongjinlin(card_fa_id)

-> );

8. Create a victim information table “victim_info _ Spell the name ”, The field information in the table is as follows ：

Field name	data type	length	Lord 、 Foreign keys	Other constraints	Notes
victim_id	char	16	Primary key		The victim ID(v_date_xxxxx)
victim_name	char	16		Non empty	The victim's name
gender	enum("man","woman")			Non empty	Gender
workplace	char	200		Non empty	Company
recent_events	text				Recent events
home_address	text				Home address
victim_phone	char	11		Non empty	Contact information of the victim

create table victim_info_zhongjinlin(

    -> victim_id char(16) primary key comment" The victim ID(v_date_xxxxx)",

    -> victim_name char(16) not null comment" The victim's name ",

    -> gender enum("man","woman") not null comment" Gender ",

    -> workplace char(200) not null comment" Company ",

    -> recent_events text comment" Recent events ",

    -> home_address text comment" Home address ",

    -> victim_phone char(11) not null comment" Contact information of the victim "

-> );

9. Create victim bank card table “victim_card _ Spell the name ”, The field information in the table is as follows ：

Field name	data type	length	Lord 、 Foreign keys	Other constraints	Notes
victim_card_id	char	16	Primary key		Victim's bank card ID(vc_date_xxxxx)
victim_id	char	16	Foreign keys		The victim ID(v_date_xxxxx)
vc_bank_name	char	20			Name of Bank
vc_card_number	int			Non empty	Transfer in card number
vc_out_amount	int			Non empty	balance
order_time	datetime			Non empty	Victimization time

create table victim_card_zhongjinlin(3//

    -> victim_card_id char(16) primary key comment" Victim's bank card ID(vc_date_xxxxx)",

    -> victim_id char(16) comment" The victim ID(v_date_xxxxx)",

    -> vc_bank_name char(20) comment" Name of Bank ",

    -> vc_card_number char(20) not null comment" Transfer in card number ",

    -> vc_out_amount char(20) not null comment" balance ",

    -> order_time datetime not null comment" Victimization time ",

    -> constraint fk_victim_id foreign key(victim_id) references victim_info_zhongjinlin(victim_id)

-> );

10. Create a fraud table “swindle_info _ Spell the name ”, The field information in the table is as follows ：

Field name	data type	length	Lord 、 Foreign keys	Other constraints	Notes
scam_id	char	16	Primary key		fraud ID（s_date_xxxxx)
Customer_id	char	16	Foreign keys	Non empty	Customer service ID(c_date_xxxxx)
victim_id	char	16	Foreign keys	Non empty	The victim ID((v_date_xxxxx))
amount	double			Non empty	Total amount of fraud
start_time	datetime			Non empty	Starting time
end_time	datetime			Non empty	End time

create table swindle_info_zhongjinlin(

    -> scam_id char(16) primary key comment" fraud ID（s_date_xxxxx)",

    -> customer_id char(16) not null comment" Customer service ID(c_date_xxxxx)",

    -> victim_id char(16) not null comment" The victim ID((v_date_xxxxx))",

    -> amount double not null comment" Total amount of fraud ",

    -> start_time datetime not null comment" Starting time ",

    -> end_time datetime not null comment" End time ",

    -> constraint fk_customer_id foreign key(customer_id) references  customer_into_zhongjinlin(customer_id),

    -> constraint fk_victim_id1 foreign key(victim_id) references  victim_info_zhongjinlin(victim_id)

-> );

11. Create a fraud detail table “scam_info_ Spell the name ”, The field information in the table is as follows ：

Field name	data type	length	Lord 、 Foreign keys	Other constraints	Notes
details_id	char	16	Primary key		Fraud details ID（sc_date_xxxxx)
scam_id	char	16	Foreign keys		fraud ID（s_date_xxxxx)
driver_id	char	16	Foreign keys		Driver ID（d_date_xxxxx）
victim_id	char	16	Foreign keys		Victim's bank card id（v_date_xxxxx)
card_farming_id	char	16	Foreign keys		Kanon bank card ID（bc_date_xxxxx)
scam_amount	double				Amount of fraud

create table scam_info_zhongjinlin(

    -> details_id char(16) primary key comment" Fraud details ID（sc_date_xxxxx)",

    -> scam_id char(16) comment" fraud ID（s_date_xxxxx)",

    -> driver_id char(16) comment" Driver ID（d_date_xxxxx)",

    -> victim_id char(16) comment" Victim's bank card id（v_date_xxxxx)",

    -> card_farming_id char(16) comment" Kanon bank card ID（bc_date_xxxxx)",

    -> scam_amount double comment" Amount of fraud ",

    -> constraint fk_scam_id2 foreign key(scam_id) references swindle_info_zhongjinlin(scam_id),

    -> constraint fk_driver_id2 foreign key(driver_id) references driver_into_zhongjinlin(driver_id),

    -> constraint fk_victim_id4 foreign key(victim_id) references victim_card_zhongjinlin(victim_card_id),

    -> constraint fk_card_farming_id foreign key(card_farming_id) references card_farm_zhongjinlin(card_farming_id)

    -> );

12.    Create a log table “log_ Spell the name ”, The field information in the table is as follows ：

Field name	data type	length	Lord 、 Foreign keys	Other constraints	Notes
table_name	char	100			Changed table name
Op_time	Datetime				Operating time
operate	enum（"insert","update","delete")				operation

create table log_zhongjinlin(

    -> table_name char(100) comment" Changed table name ",

    -> op_time datetime comment" Operating time ",

    -> operate enum("insert","update","delete") comment" operation "

    -> );

13.    Create triggers to facilitate updating log tables （ All tables are required to add , Delete , Change Will be recorded in the log table （log））

create trigger tr_zjl before insert on user_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("user_zhongjinlin",now(),"insert");

create trigger tr_zjl1 before delete on user_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("user_zhongjinlin",now(),"delete");

create trigger tr_zjl2 before update on user_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("user_zhongjinlin",now(),"update");

create trigger tr_zjl3 before insert on driver_into_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("driver_into_zhongjinlin",now(),"insert");

create trigger tr_zjl4 before delete on driver_into_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("driver_into_zhongjinlin",now(),"delete");

create trigger tr_zjl5 before update on driver_into_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("driver_into_zhongjinlin",now(),"update");

create trigger tr_zjl6 before insert on customer_into_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("customer_into_zhongjinlin",now(),"insert");

create trigger tr_zjl7 before delete on customer_into_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("customer_into_zhongjinlin",now(),"delete");

create trigger tr_zjl8 before update on customer_into_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("customer_into_zhongjinlin",now(),"update");

create trigger tr_zjl9 before insert on card_farming_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("card_farming_zhongjinlin",now(),"insert");

create trigger tr_zjl10 before delete on card_farming_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("card_farming_zhongjinlin",now(),"delete");

create trigger tr_zjl11 before update on card_farming_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("card_farming_zhongjinlin",now(),"update");

create trigger tr_zjl12 before insert on card_farm_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("card_farm_zhongjinlin",now(),"insert");

create trigger tr_zjl13 before delete on card_farm_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("card_farm_zhongjinlin",now(),"delete");

create trigger tr_zjl14 before update on card_farm_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("card_farm_zhongjinlin",now(),"update");

create trigger tr_zjl15 before insert on victim_info_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("victim_info_zhongjinlin",now(),"insert");

create trigger tr_zjl16 before delete on victim_info_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("victim_info_zhongjinlin",now(),"delete");

create trigger tr_zjl17 before update on victim_info_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("victim_info_zhongjinlin",now(),"update");

create trigger tr_zjl18 before insert on victim_card_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("victim_card_zhongjinlin",now(),"insert");

create trigger tr_zjl19 before delete on victim_card_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("victim_card_zhongjinlin",now(),"delete");

create trigger tr_zjl20 before update on victim_card_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("victim_card_zhongjinlin",now(),"update");

create trigger tr_zjl21 before insert on swindle_info_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("swindle_info_zhongjinlin",now(),"insert");

create trigger tr_zjl22 before delete on swindle_info_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("swindle_info_zhongjinlin",now(),"delete");

create trigger tr_zjl23 before update on swindle_info_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("swindle_info_zhongjinlin",now(),"update");

create trigger tr_zjl24 before insert on scam_info_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("scam_info_zhongjinlin",now(),"insert");

create trigger tr_zjl25 before delete on scam_info_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("scam_info_zhongjinlin",now(),"delete");

create trigger tr_zjl26 before update on scam_info_zhongjinlin

    -> for each row

    -> insert into log_zhongjinlin values("scam_info_zhongjinlin",now(),"update");

After a busy time , You have finally set up the prototype of this fraud database , Next, just insert the data, so you go to the big brother to ask for information about other criminals

As a result, brother told you , The note came down a few days ago “ general cleaning ”, Many brothers were taken away , So I want you to go out with him “ hiring ”

• Task three ： The criminal recruits

So you go out with your eldest brother to see what kind of social idle talents there are （ The slip ）

You and your eldest brother smuggled to the Mainland , Turn a circle , I didn't find any great wisdom , So brother Hu took you to a night market stall to drink to relieve your boredom , Just halfway through the drink, you hear a little noise on the table next to you , It turned out that a group of people at the next table quarreled over whether the aviation rockets burn coal or diesel , You have a look , These wise men , Not exactly what our organization needs “ personnel ” Do you , So you motioned to big brother , Brother seems to understand , So he got up , Take out a box of general Taishanhong , I spread a wave to this pile of people who should slip away , These people are talking about such high-end issues at a young age , Do you want to do big things with him …… After some deception , This group should have successfully entered our gang

After having someone, big brother decided to package our fraud Gang as a company , Let the only college student in the gang （ That's you ） Take a name

You decided to call it ： There are a group of people in Myanmar “ wisdom ” Of young people believe that under the leadership of President du , Have a good money journey ！

1. Insert all fields into user table data in batch

Id	phone	username	password	question	answer
u_2022_00001	010-6555111	that	u_2022_0000131	Liu	One
u_2022_00002	010-6609611	Chen er	u_2022_0000132	Chen	Two
u_2022_00003	010-6419336	Zhang San	u_2022_0000133	Zhang	3、 ... and
u_2022_00004	010-6608326	Li Si	u_2022_0000134	Li	Four
u_2022_00005	010-8287268	Wang Wu	u_2022_0000135	king	5、 ... and
u_2022_00006	010-5816060	Zhao Liu	u_2022_0000136	Zhao	6、 ... and
u_2022_00007	010-5816078	Sun Qi	u_2022_0000137	Grandchildren	7、 ... and

insert into user_zhongjinlin values

    -> ("u_2022_00001","010-6555111"," that ","u_2022_0000131"," Liu "," One "),

    -> ("u_2022_00002","010-6609611"," Chen er ","u_2022_0000132"," Chen "," Two "),

    -> ("u_2022_00003","010-6419336"," Zhang San ","u_2022_0000133"," Zhang "," 3、 ... and "),

    -> ("u_2022_00004","010-6608326"," Li Si ","u_2022_0000134"," Li "," Four "),

    -> ("u_2022_00005","010-8287268"," Wang Wu ","u_2022_0000135"," king "," 5、 ... and "),

    -> ("u_2022_00006","010-5816060"," Zhao Liu ","u_2022_0000136"," Zhao "," 6、 ... and "),

-> ("u_2022_00007","010-5816078"," Sun Qi ","u_2022_0000137"," Grandchildren "," 7、 ... and ");

 2. All fields are inserted into driver information table data in batch

driver_id	phone	Entry_time	nickname
d_2022_00001	010-6555111	2022/5/15	Wendao
d_2022_00002	010-6609611	2022/5/16	Otope
d_2022_00003	010-6419336	2022/5/17	Bow length

insert into driver_info_zhongjinlin values

    -> ("d_2022_00001","010-6555111","2022/5/15"," Wendao "),

    -> ("d_2022_00002","010-6609611","2022/5/16"," Otope "),

-> ("d_2022_00003","010-6419336","2022/5/17"," Bow length ");

 3. Specify fields to insert customer service information table data in batches

Customer_id	phone	nickname	Entry_time
c_2022_00004	010-6608326	Muzi	2022/5/16
c_2022_00005	010-8287268	Trinity	2022/5/17

insert into customer_info_zhongjinlin(customer_id,phone,nickname,Entry_time)

    -> values

    -> ("c_2022_00004","010-6608326"," Muzi ","2022/5/16"),

-> ("c_2022_00005","010-8287268"," Trinity ","2022/5/17");

4. Specify fields to batch insert data in the canon table

card_fa_id	phone	nickname	Entry_time
f_2022_00006	010-5816060	sixteen	2022/5/15
f_2022_00007	010-5816078	Zixiao	2022/5/13

insert into card_farming_zhongjinlin(card_fa_id,phone,nickname,Entry_time)

    -> values

    -> ("f_2022_00006","010-5816060"," sixteen ","2022/5/15"),

-> ("f_2022_00007","010-5816078"," Zixiao ","2022/5/13");

5. View log table

select * from log_zhongjinlin;

• Task 4 ： Buy leek information

Big brother goes in “ Further education ” My brother got to know an information peddler who sold other people's information , He bought a lot of information about leeks in his hands

1. Specify the field to insert the victim information table data

victim_id	victim_name	gender	workplace	recent_events	home_address	victim_phone
v_2023_00001	Wang mou	man	school	I was caught surfing the Internet	Tipping Garden	13555623159
v_2023_00002	zhang	man	factory	Be promoted	Tumbling Street	13555893159
v_2023_00003	Li Mou	woman	housewife	divorce	Tipping bucket community	13578623159

insert into victim_info_zhongjinlin(victim_id,victim_name,gender,workplace,recent_events,home_address,victim_phone) values

    -> ("v_2023_00001"," Wang mou ","man","school"," I was caught surfing the Internet "," Tipping Garden ","13555623159"),

    -> ("v_2023_00002"," zhang ","man","factory"," Be promoted "," Tumbling Street ","13555893159"),

-> ("v_2023_00003"," Li Mou ","woman","housewife"," divorce "," Tipping bucket community ","13578623159");

2. After chatting, I learned that Zhang had recently moved to Fandou community and changed his home address to Fandou community

After verification, I learned that Li had changed his telephone number （ Change Li's telephone number to ：13567787659）

update victim_info_zhongjinlin set home_address=" Tipping bucket community " where

    -> victim_name=" zhang ";

   update victim_info_zhongjinlin set victim_phone=13567787659 where

-> victim_name=" Li Mou ";

You sigh , Helpless shook his head , Can't , I had to keep on working

Mission 5： Cannon buys bank cards

1. All fields are inserted into the card table data of the Agricultural Bank of China in batches

card_farming_id	card_fa_id	bank_name	card_number	is_deprecated	deprecated_time
bc_2022_00001	f_2022_00006	Industrial and Commercial Bank of China	1234123412341230	yes	2024/5/20
bc_2022_00002	f_2022_00006	Bank for economic construction	1234567123418980	yes	2024/5/15
bc_2022_00003	f_2022_00007	Agricultural bank of	1234667123418980	no
bc_2022_00004	f_2022_00007	Bank for economic construction	1234567789418980	yes	2024/5/12
bc_2022_00005	f_2022_00006	Bank of Communications	1234567893418980	yes	2024/5/23
bc_2022_00006	f_2022_00007	Agricultural bank of	1234457123418980	no
bc_2022_00007	f_2022_00006	Bank of Communications	1234567823418980	no

When you try to insert data , I found the wrong report , Take a closer look , It is found that the data type of the bank card number field is set incorrectly , Change the data type to char（16）, And insert the data again .

alter table card_farm_zhongjinlin change card_number card_number char(16);

insert into card_farm_zhongjinlin values

    -("bc_2022_00001","f_2022_00006"," Industrial and Commercial Bank of China ","1234123412341230","yes","2024/5/20"),

    -("bc_2022_00002","f_2022_00006"," Bank for economic construction ","1234567123418980","yes","2024/5/15"),

    -> ("bc_2022_00003","f_2022_00007"," Agricultural bank of ","1234667123418980","no",null),

    -("bc_2022_00004","f_2022_00007"," Bank for economic construction ","1234567789418980","yes","2024/5/12"),

    -("bc_2022_00005","f_2022_00006"," Bank of Communications ","1234567893418980","yes","2024/5/23"),

    -> ("bc_2022_00006","f_2022_00007"," Agricultural bank of ","1234457123418980","no",null),

    -> ("bc_2022_00007","f_2022_00006"," Bank of Communications ","1234567823418980","no",null);

After doing this , You finally breathe a sigh of relief , call , Now everything is ready except to cheat

Task six ： Wang was cheated

1. Members begin to act , They aimed at the first leek ： Wang mou , Let you tell them about Wang

（ Query the gender of Wang , Company , Recent events , Home address ）

select gender Gender ,workplace Company ,recent_events Recent events ,home_address Home address from victim_info_zhongjinlin where victim_name=" Wang mou ";

After telling them Wang's information , They began to act , Through Wang's information to get close to （ Pretend to borrow money from an acquaintance ） The way to get his balance

2. Insert data into the victim's bank card table

victim_card_id	victim_id	vc_bank_name	vc_card_number	vc_out_amount	order_time
vc_2022_00001	v_2023_00001	Industrial and Commercial Bank of China	1234123412341230	15098	2023/5/3

insert into victim_card_zhongjinlin values

    -> ("vc_2022_00001","v_2023_00001"," Industrial and Commercial Bank of China ","1234123412341230","15098","2023/5/3");

3. Insert information into the fraud table

scam_id	Customer_id	victim_id	amount	start_time	end_time
s_2022_00002	c_2022_00004	v_2023_00001	0	2023/5/3	2023/6/3

insert into swindle_info_zhongjinlin values

    -> ("s_2022_00002","c_2022_00004","v_2023_00001","0","2023/5/3","2023/6/3");

You borrow money by pretending that acquaintances are having trouble , Got the first pot of gold from this fraud gang 5000 fast

4. Insert data into the fraud details table

details_id	scam_id	driver_id	victim_id	card_farming_id	scam_amount
sc_2022_00001	s_2022_00001	d_2022_00001	vc_2022_00001	bc_2022_00001	5000

insert into scam_info_zhongjinlin values 

 ("sc_2022_00001","s_2022_00001","d_2022_00001","vc_2022_00001","bc_2022_00001",5000);

Then you're on a social software “ touch ” Pretend to be a beautiful woman and get to know Wang , Mr. Wang soon put it on , You take 520 Will be to , Other girls cheated Wang out of the second sum of money on the grounds that they had gifts

You can't help sighing ： Although these should slip the eyes full of “ wisdom ”, But it's really a set of tricks , On fishing for the wrong gate , It has to be this group of people , It is true that there is a specialty in the art industry .

5. Insert data into the fraud details table

details_id	scam_id		driver_id		victim_id		card_farming_id		scam_amount
sc_2022_00002		s_2022_00001		d_2022_00001		vc_2022_00001		bc_2022_00001		10000

insert into scam_info_zhongjinlin values

    -> ("sc_2022_00002","s_2022_00001","d_2022_00001","vc_2022_00001","bc_2022_00001",10000);

After earning Mr. Wang's first payment, your criminal gang quarreled because of the uneven distribution of the stolen goods

6. So you decide to inquire about the distribution of stolen money according to the output （ Check the fraud of Wang when he was cheated twice ID, Customer service ID, Driver ID, Amount of fraud ）

select a.scam_id fraud ID,a.customer_id Customer service ID,b.driver_id Driver ID,b.scam_amou Amount of fraud from

-> swindle_info_zhongjinlin a inner join scam_info_zhongjinlin b;

Task seven ： Zhang was cheated …..

1. Members begin to act , They aimed at the second leek ： zhang , Let you tell them about Zhang

（ Query Zhang's gender , Company , Recent events , Home address ）

select gender Gender ,workplace Company ,recent_events Recent events ,home_address Home address from victim_info_zhongjinlin where victim_name=" zhang ";

After telling them Zhang's information , They began to act , Through Zhang's information to get close to （ To pretend to be a bank worker ） The way to get his balance

2. Insert data into the victim's bank card

victim_card_id	victim_id	vc_bank_name	vc_card_number	vc_out_amount	order_time
vc_2022_00002	v_2023_00002	Bank for economic construction	1234567123418980	200678	2023/5/4

insert into victim_card_zhongjinlin values

("vc_2022_00002","v_2023_00002"," Bank for economic construction ","1234567123418980","200678","2023/5/4");

3. Insert data into the fraud table

scam_id	Customer_id	victim_id	amount	start_time	end_time
s_2022_00003	c_2022_00005	v_2023_00002	0	2023/5/4	2023/6/4

insert into swindle_info_zhongjinlin values

-> ("s_2022_00003","c_2022_00005","v_2023_00002","0","2023/5/4","2023/6/4");

The criminal gang found that Zhang had been promoted by the leaders recently , So he pretended to be Zhang's leader and asked for bribes

Defraud Zhang 100000 element

4. Insert data into the fraud details table

details_id	scam_id	driver_id	victim_id	card_farming_id	scam_amount
sc_2022_00004	s_2022_00002	d_2022_00002	vc_2022_00002	bc_2022_00002	100000

insert into scam_info_zhongjinlin values

    -> ("sc_2022_00004","s_2022_00002","d_2022_00002","vc_2022_00002","bc_2022_00002",100000);

The second time, the criminal gang looked at Zhang's full balance , Never give up , So I decided to cheat again , This time I decided to play a big one , The fraud Gang is in a dating software “ touch ” Pretending to be a beautiful woman with Zhang “ accidental ” Get to know each other , Make an appointment with Zhang to meet at XX hotel , Then the criminals 150 A young lady from the red romance senior club was hired at a high price of RMB , Meet Zhang , Just when Zhang thought he was lucky , The gang pretended that the young lady's family , Rush into the room , Ask Zhang why he molested him “ pure ” My sister . And control Zhang , Ask Zhang to give a statement , Zhang immediately understood , I am being “ Cactus dance ”,……….. After this fraud , The criminal gang has got it again 100000 element

5. Insert data into the fraud details table

details_id	scam_id	driver_id	victim_id	card_farming_id	scam_amount
sc_2022_00003	s_2022_00002	d_2022_00002	vc_2022_00002	bc_2022_00002	100000

insert into scam_info_zhongjinlin values

    -> ("sc_2022_00003","s_2022_00002","d_2022_00002","vc_2022_00002","bc_2022_00002",100000);

Mission 8： Create a cheated view

On the day , You are big brother “ The office ”（ Red romance ktv） Accompany elder brother to see “ tea ”, At this time, your mobile phone suddenly receives an unknown call , The first line on the phone asks if there is anyone around you , If there is someone, go to a place where there is no one , You can see what he means （ It's the police uncle ）, So , You look at big brother , Pretend to be a business call from a colleague ,

The police told you ： They already know that you are forced to do business , Tell you to stabilize first , Help them collect the criminal evidence of the criminal , You quickly promised , After collection, you can give the data to them to insert in the criminal gang “ Informant ”, His code name ： Rice bucket . Joint code ： I'm cabbage . Reply number ： It's a roll and a dish

After that, hang up ;

You think , Ah, this , Just give me a code and a connector code , How can I find it

No matter the , First prepare the data and give it to the police uncle

1. Create a cheated view view_vc_ Spell the name （ The view contains victim information , Fraud details ）

When you create a view, you find that some field names are duplicate, resulting in the creation failure

Change the duplicate field name .

alter table scam_info_zhongjinlin change victim_id victim_id_sc char(16);

create view  view_vc_zhongjinlin as select * from victim_info_zhongjinlin inner join scam_info_zhongjinlin;

2. Create a cheated view view_scam_ Spell the name （ The view contains information about the fraudster ）

create view view_scam_zhongjinlin as select * from swindle_info_zhongjinlin;

Just when you look at creating views , You suddenly find the deputy leader “ Fantong “ The mystery of the name , You realize that the deputy chief is the informant , So you meet him , And successfully handed over the data of the criminal gang to the informant .

Mission 9： Li was cheated

1. Members begin to act , They aimed at the second leek ： Li Mou , You should check the information of Li as usual

（ Query the gender of Li , Company , Recent events , Home address ）.

select gender Gender ,workplace Company ,recent_events Recent events ,home_address Home address from victim_info_zhongjinlin where victim_name=" Li Mou ";

After telling them Li's information , They began to act , Through Li's information, I tried to get close to （ To pretend to be a bank worker ） The way to get his balance

2. Insert data into the victim's bank card

victim_card_id	victim_id	vc_bank_name	vc_card_number	vc_out_amount	order_time
vc_2022_00003	v_2023_00003	Agricultural bank of	1234667123418980	500987	2023/5/5

insert into victim_card_zhongjinlin values

-> ("vc_2022_00003","v_2023_00003"," Agricultural bank of ","1234667123418980 ","500987","2023/5/5");

3. Insert data into the fraud table

scam_id	Customer_id	victim_id	amount	start_time	end_time
s_2022_00004	c_2022_00004	v_2023_00003	0	2023/5/5	2023/6/5

insert into swindle_info_zhongjinlin values

-> ("s_2022_00004","c_2022_00004","v_2023_00003","0","2023/5/5","2023/6/5");

 4. I learned that Li had just experienced divorce , The criminal gang pretended to be an acquaintance Li had not seen for a long time , Comfort Li , Then borrow two sums of money in case of emergencies .

details_id	scam_id	driver_id	victim_id	card_farming_id	scam_amount
sc_2022_00005	s_2022_00003	d_2022_00003	vc_2022_00003	bc_2022_00003	260000
sc_2022_00006	s_2022_00003	d_2022_00003	vc_2022_00003	bc_2022_00003	240000

insert into scam_info_zhongjinlin values

    -> ("sc_2022_00005","s_2022_00003","d_2022_00003","vc_2022_00003","bc_2022_00003",260000),

    -> ("sc_2022_00006","s_2022_00003","d_2022_00003","vc_2022_00003","bc_2022_00003",240000);

Although Li is simple , But I soon realized that something was wrong , In addition, he downloaded the national anti fraud app, So I soon realized that it was wrong , Select alarm ………..

Task ten ： The police caught the fraudster Back up the fraud company database

At this time, you are watching with your eldest brother ” tea “ When you not only sigh that the tea is really white and tender , A group of policemen broke in ,

Catch you . Back to the police station for questioning , Because you are not voluntary but under duress , Plus the active data transmission , So I was just educated . And the technician of the police station went out on business , So the police asked you to help them back up the criminal database

1. Back up all databases , The file named “all_ Spell the name .sql”（ Cut two pictures command + file ）

D:\software\mysql-8.0.28-winx64\mysql-8.0.28-winx64\biefensjk>mysqldump -u root -prain --all-databases>all_zhongjinlin.sql

You think again for fear of delaying the technician to find the fraud database for a while , So I decided to back up one separately

     The file name is the database name _ Spell the name

    

2. Back up the fraud database , The file named “scam_ Spell the name .sql”（ Cut two pictures command + file ）

D:\software\mysql-8.0.28-winx64\mysql-8.0.28-winx64\biefensjk>mysqldump -u root -prain scam_zhongjinlin>scam_zhongjinlin.sql

After the backup, you don't think it's good to keep the fraud data , So I decided to delete .

3. Delete the fraud database

drop database scam_zhongjinlin;

At this time, you are also an unforgettable experience , Still keep it , So I plan to restore the fraud database

4. Create a fraud database “scam_ Spell the name ”

create database scam_zhongjinlin;

5. sign out MySQL Sign in

\q

6. Execute fraud database backup file

D:\software\mysql-8.0.28-winx64\mysql-8.0.28-winx64\biefensjk>mysql -u root -prain scam_zhongjinlin<scam_zhongjinlin.sql

 7. Sign in MySQL

mysql -u root -prain

8. Using the fraud database

use scam_zhongjinlin;

 9. View all tables （ Look at the log table , Record all your hard work ）

show tables;

select * from log_zhongjinlin;

After that , You take a long breath , It's finally over （ The man in front of the screen thinks so ）.