Windows offline installation mysql5.7

1. Download the latest version of MySQL5.7 

1. Official website address

https://downloads.mysql.com/archives/community/

2. Download the latest version of MySQL5.7

Download the installation package shown in the figure below:

 Two, install MySQL5.7

1. Unzip

Unzip the downloaded compressed package just now and match the directory C:\software\mysql-5.7.41, (you can switch the path at will).

2. Create a new file my.ini

Create a new file in the C:\software\mysql-5.7.41 directory my.ini. The content of the file is as follows. Note that basedirand datadiris the installation directory. The content is as follows:

[Client]
#设置3306端口
port = 3306
[mysqld]
#设置3306端口
port = 3306
# 设置mysql的安装目录
basedir=C:/software/mysql-5.7.41
# 设置mysql数据库的数据的存放目录
datadir=C:/software/mysql-5.7.41/data
# 允许最大连接数
max_connections=200
# 服务端使用的字符集默认为8比特编码的latin1字符集
character-set-server=utf8
# 创建新表时将使用的默认存储引擎
default-storage-engine=INNODB
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
character_set_server = utf8
lower_case_table_names = 1
[mysql]
# 设置mysql客户端默认字符集
default-character-set=utf8

3. System environment variable settings

 (1) Right click on This Computer and select Properties

(2) Select Advanced System Settings

 (3) Select environment variables

Note: You can also search for "environment variables" in the search box of Windows 11, and choose to edit the system environment variables 

 

 (4) Add system environment variables

系统变量Create a new variable inside MYSQL_HOME , and enter the path of the MySQL folder after decompression.

(5) Edit system variablespath

Find the variable 系统变量内in it  Path, double-click to open it, and finally add %MYSQL_HOME%\bin

4. Installation command 

(1) Open cmd as an administrator

(2) Switch to the C:\software\mysql-5.7.41\bin folder

(3) Enter the following statement to create a new data folder and create a default database

mysqld --initialize-insecure --user=mysql 

(4) Installation service

mysqld -install 

  

Note: the first installation will show "Service successfully installed"

If it has already been installed, it will display "The service already exists!", then you need to remove the service:

mysqld -remove 

3. Enter and configure MySQL

1. Start the MySQL service

Enter the following command in cmd:

net start mysql 

  

2. Login

#输入登录语句：-u 指的是登录的用户名，-p 是密码，因为是默认安装的数据库，此时密码为空，回车即可。

mysql -u root -p 

3. Set password 

ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password'; 

flush privileges; 

exit;

Note: Because MySQL has established a default database, the user name is root, and the password is empty, so in order to avoid login problems later, change the password first after login. The new_password part is your new password.（注意密码在单引号内部：'password'）

4. Stop the MySQL service

net stop mysql 

5. Enable remote access to mysql

Execute the following command to enable remote access restriction (note: the IP enabled by the following command is 192.168.0.1, if you want to enable all, use % instead of IP):

grant all privileges on *.* to 'root'@'192.168.0.1' identified by 'password' with grant option;

Then enter the following two lines of commands

flush privileges; 
exit;