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stay mysql Installation directory , Create a my.ini The configuration file , Then add the following to it （mysql The installation directory should be changed to its own ）：

### my.ini

[mysqld]
 basedir = "D:\Program Files\mysql-5.7.31-winx64"    #mysql The installation directory 
 datadir = "D:\Program Files\mysql-5.7.31-winx64\data" #mysql The installation directory +data
 port=3306
 character-set-server=utf8
 character_set_filesystem= binary

 [client]
 port=3306
 default-character-set = utf8

 [mysqld_safe]
 timezone="CST"

 [mysql]
 default-character-set=utf8

4. initialization

Open the terminal & Run as Administrator ：

Input the initialization command at the terminal , Meeting Generate a to root Username , User data with empty password ：（ In the double quotation marks before the command is ：mysql Installation directory ）

"D:\Program Files\mysql-5.7.31-winx64\bin\mysqld.exe" --initialize-insecure

#  Their own mysql The installation directory  +  --initialize-insecure

After successful command execution ,mysql A new one will be added to the directory data Catalog ：

thus ,MySQL Installation is complete .

Two 、 start-up MySQL

1. Production services ：....--install mysql

"D:\Program Files\mysql-5.7.31-winx64\bin\mysqld.exe" --install mysql

2. start-up mysql：net start mysql

3. close mysql：net stop mysql

4. You can see in the service mysql This service

then win+R, Input services.msc, You can see in the service mysql This service ：

3、 ... and 、 Connect the test

1. take mysql The installation directory ”D:\Program Files\mysql-5.7.31-winx64\bin\“ Add to system environment variable .

Right click on my computer ——> attribute ——> Advanced system setup ——> environment variable ——> In the system variable “Path”——> spot “ edit ”——>” newly build “——> take ”D:\Program Files\mysql-5.7.31-winx64\bin\“ Add to system environment variable ——>” determine “.

2. start-up mysql service ：

3. At this time, you don't need administrator permission , Open it directly cmd, Input mysql -u root -p：

No password by default , Just click enter , Last appearance "mysql>" It's a success .

4. Enter for the first time , Remember to give mysql Set a password :

（ Next time you enter mysql Directly enter the set password ）

set password = password('root123');  # Set the password to root123

5. Check the existing database

Input ：show databases;

6. sign out （ Close the connection ）

Input ：exit;

7. Connect again MySQL（ You need to enter a password ）

8. Summary command

C:\Users\dell>mysql -u root -p               # stay cmd Terminal input command , Get into mysql
mysql> set password = password('root123');   # Enter for the first time mysql after , Set the password 
mysql> show databases;                       # Display database 
mysql> exit;                                 # sign out 

C:\Users\dell>mysql -u root -p  # stay cmd Terminal input command , Once again into the mysql
 Input password                          # At this time , Entry required mysql Password 
mysql> exit;                    # sign out

notes ： If you want to delete mysql service , Reinstall mysql service , You can refer to the following steps ：

# The specific orders are as follows ：

 Enter as Administrator cmd：
C:\WINDOWS\system32>"D:\Program Files\mysql-5.7.31-winx64\bin\mysqld.exe" --remove mysql     # Delete mysql service 
 Delete D:\Program Files\mysql-5.7.31-winx64 Install under directory data file 
C:\WINDOWS\system32>"D:\Program Files\mysql-5.7.31-winx64\bin\mysqld.exe" --initialize-insecure # Reinitialize 
C:\WINDOWS\system32>"D:\Program Files\mysql-5.7.31-winx64\bin\mysqld.exe" --install mysql       # reinstall mysql service 
C:\WINDOWS\system32>net start mysql  # start-up mysql service 
C:\WINDOWS\system32>mysql -u root -p # Get into mysql
Enter password:                      # Enter for the first time , No password , Directly by enter that will do 
mysql> set password = password('root123'); # Enter for the first time , Set a password to root123
mysql> show databases;                     # Display the original database 
mysql> exit;                               # sign out mysql
C:\WINDOWS\system32>net stop mysql         # stop it mysql service