MySQL installation configuration 2021 in Windows Environment

1、 First of all to enter MySQL :: Download MySQL Community Server Official website , Download installation package Extract to a specified directory

Here the decompression is assigned to D disc , And record the installation path

2、 Set up my.ini file

Copy the following content to the created my In file

basedir= Their own mysql Catalog

datadir=mysql Of data Stored directory

[mysqld]

# Set up 3306 port

port=3306

# Set up mysql Installation directory

basedir=D:\mysql\mysql-8.0.25-winx64

# Set up mysql Database data storage directory (data If there is no folder, it will be created automatically )

datadir=D:\mysql\mysql-8.0.25-winx64/data

# Maximum connections allowed

max_connections=200

# Number of connection failures allowed . This is to prevent someone from trying to attack the database system from the host

max_connect_errors=10

# The character set used by the server defaults to UTF8

character-set-server=utf8

# The default storage engine that will be used when creating a new table

default-storage-engine=INNODB

# By default “mysql_native_password” Plug in authentication

default_authentication_plugin=mysql_native_password

[mysql]

# Set up mysql Client default character set

default-character-set=utf8

What needs to be changed , Change the directory to your own directory, that is ：

# Set up mysql Installation directory    ---------- Is your file path -------------

basedir=D:\mysql-8.0.26-winx64

# Set up mysql Database data storage directory   --------- Is your file path data The folder is created by itself

datadir=D:\mysql-8.0.26-winx64\data

eg:

3、 Run under the command of the administrator cmd, Execute the installation instructions

cd D:\mysql-8.0.26-winx64\bin Enter the directory of the operation

mysqld --initialize --console

mysqld install mysql

（ The selected part in the figure is the initial login password , Write down the ）

net start mysql start-up

mysql -uroot -p Connect mysql, Enter the password just now

Login success screen

4、 Change Password

After logging in here, we can change the password to our own password by executing the following instructions

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY ' New password ';

5、 Configure environment variables

1） Add system variables MYSQL_HOME The variable value is the initial mysql The installation path （ To /bin）

2） stay path Add %MYSQL_HOME% %MYSQL_HOME%\bin

6、mysql Basic operation

Display the version installation date

Display library

Create a selection database

Create database tables , Display table

Display table structure

Look up the information in the table and exit mysql