Mysql-5.7 installation

1. download

MySQL Download address dev.mysql.com/downloads/m…, Because the latest version is 8.xx Version of the , You can find it from this position

2. New configuration file

Generally, the compressed package does not contain this configuration file, which needs to be created

3. Writing configuration files

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#  Configuration is for all connections mysql server Client tools default character set 
default-character-set = utf8mb4
[mysql]
#  Configuration is only for mysql Client tools default character set 
default-character-set=utf8mb4
[mysqld]
# Set up 3306 port , You can specify the port number according to your needs 
port = 3306
#  Set up mysql Installation directory 
basedir=C:\Program Files\mysql\mysql-5.7.28-winx64
#  Set up mysql Database data storage directory （ You can create directory locations according to your actual ideas , Configure path pairs ）
datadir=C:\Program Files\mysql\mysql-5.7.28-winx64\data
#  The character set used by the server uses utf8mb4 Because I usually store emoji expression 
character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci
#  The default storage engine that will be used when creating a new table 、
default-storage-engine=INNODB
 Copy code 

4. Complete the database installation

Initialize the database after the configuration file is configured , Enter the installation mysql5.7 Version of bin Catalog , Most executable programs are in this directory
Pay attention to running and executing commands with administrator privileges

mysqld --initialize-insecure --user=mysql After executing the above command ,MySQL I'll build my own data Folder , And build the default database , Login user name is root, The password is empty.

I usually set it to start automatically , I am using windows The system can use the following command to register
mysqld install mysql57 The following prompt indicates that the registration is successful  mysql57 Indicates the name of the service , You can choose a name at will without conflict

Use the following command to start mysql net start mysql57 mysql57 Name of service

Verify that the installation was successful mysql -uroot -p Login user name is root, The password is empty. , The following screen shows that the installation is successful \

It can be modified by the following command mysql root User's password Log in first MySQL.

Format ：mysql> set password for user name @localhost = password(‘ New password ');

Example ： set password for [email protected] = password('123');