MySQL installation

MySQL The installation of is different from general software , You need to configure some related environments . And the installation is divided into .msi Installation and .zip install . Here are .msi install .

1. First , You want to download a .msi file . Here is the download address Click to enter the download interface .
Download the second .

2. When the download is complete , Double click the file . After the environment is detected, the installation interface will pop up automatically .
3. Picture description here
4 Choose the installation type （ Generally choose the first , Default installation . You can also choose the full version , After all, this software is free .）
From top to next is ：

Default development version
Server only
Client only
Full version
Customize
4. Just follow the default all the time . Click on next, Some Click execute.
There's a little bit of caution here , You can put the back 57 Delete , Otherwise, you have to hit this when you hit the indicator .

Here you need to enter your password , And then click check.

5. After installation, it should look like this . Some may not data and my.ini Folder , Don't worry , It will be solved later .

bin Saved in directory MySQL Common command tools and management tools 、data Directory is MySQL The default place to save data files and log files docs Under the catalogue is MySQL Help document for 、include Contents and lib Directory is MySQL The header file and the library file that it depends on 、share Save directory files and log files in the directory .

6. Create a new text document , Name it my.txt. Enter the code in it , Change the path to your own .

[mysql]
; Set up mysql Client default character set
default-character-set=utf8
[mysqld]
; Set up 3306 port
port = 3306
; Set up mysql Installation directory
basedir=C:\Program Files\MySQL\MySQL Server 8.0
; Set up mysql Database data storage directory
datadir=C:\Program Files\MySQL\MySQL Server 8.0\data
; Maximum connections allowed
max_connections=200
; The character set used by the server defaults to 8 Bit coded latin1 Character set
character-set-server=utf8
; The default storage engine that will be used when creating a new table
default-storage-engine=INNODB

After completion, change the documented suffix to .ini
7. knock cmd, Run as administrator . Enter your disk location .
8. Input mysqld --initialize perhaps mysqld –initialize-insecure –user=mysql, Will find ,data Folder generated .

9. Then the input net.start.mysql . The following errors may occur .
When the input mysqld –initialize-insecure –user=mysql, Then start the server once .

10. Input mysql -u root -p, Then enter the above password and you will succeed .

mysql Three ways to quit ：
mysql > exit;
mysql > quit;
mysql > \q;

stop it MySQL The code for the service ：net stop mysql.

Summary of the reasons why the server cannot be started ：

1. The lack of data file , Enter mysqld --initialize perhaps mysqld –initialize-insecure –user=mysql Can solve .（ Of course , You have to put the previous data Delete .）

2. No environment variables configured , You need to mysql Of bin Add the path to your environment variable . This article does not introduce , Please Baidu , Relatively simple .

3. Not running as an administrator cmd.

4. During installation , The name in the red box defaults to MySQL57（ Corresponding to version 5.7）, At this time, I changed it to “MySQL”.
The name meaning of the red box in the above figure is right MySQL The program is in Windows Name the system service window . let me put it another way , The name here is the same as that of the service window . If we don't “MySQL57” It is amended as follows “MySQL”, Then start in the command prompt window MySQL The program should enter “net start mysql57” instead of “net start mysql”.