MySQL installation (detailed tutorial)

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foreword

The main purpose of this article is to install MySQL on Windows. The following content is compiled from Bilibili - MySQL database entry to proficiency .

If you want to install MySQL under Linux, see Linux-Installing MySQL (Detailed Tutorial)

I do not produce knowledge, I am just a porter of knowledge~~

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I. Overview

MySQL is a relational database management system, and the SQL language used is the most commonly used standardized language for accessing databases. MySQL software adopts a dual authorization policy, which is divided into community edition and commercial edition. Because of its small size, fast speed, low overall cost of ownership, especially the open source feature, MySQL is generally chosen as the website for the development of small, medium and large websites. database.

• Community Edition: Free, but does not provide any technical support
• Commercial version: charge, you can try it for 30 days, and the official technical support is provided

Two, download

Official website: https://www.mysql.com/

After entering the official website, clickDOWNLOADS

enter the page

We can directly download the community version of MySQL here, clickMySQL Community (GPL) Downloads >>

Here you can see that the official provides many forms of downloads,

Click MySQL Intaller for Windowsto enter the following page and then Downloadclick to download the installation package.

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It may be slower to download directly here. I provide the downloaded installation package below:

URL: Baidu Netdisk

Extraction code: s5lu

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3. Installation

(1) Installation

Installing MySQL under windows is basically a fool's installation

Double-click the downloaded installation package

clicknext

clicknext

chooseYes

Click Excuteto install the related components of MySQL, this process may take a few minutes

clicknext

clicknext

clicknext

Enter the MySQL root password, remember, after setting the password, clicknext

Click next, note: the service name here defaults toMySQL80

clickExecute

finish installation

clickcancel

chooseYes

In this way, MySQL is successfully installed under Windows

(2) Start and stop

After the MySQL installation is complete, it will be automatically registered as a system service. It is in the startup state by default, and it is self-starting. If you want to stop MySQL, you can win + Ropen it and .services.mscMySQL

Or operate through commands (need to be executed as an administrator):

start: net start mysql80
stop:net stop mysql80

For example:

(3) Client connection

Method 1: The client command tool provided by MySQL

Double click to open, enter password

Method 2: Execute the command with the command line tool that comes with the system

instruction:mysql [-h 127.0.0.1] [-P 3306] -u root -p

Note: To execute the above command in any directory, you must configure the PATH environment variable

(4) Configure MySQL global environment variables

Configure environment variables: Open 我的电脑(此电脑)-> Mouse 右键-> Select 属性-> Find 高级系统设置-> Select环境变量

select Path, click编辑

Find the installation path of the MySQL server:C:\Program Files\MySQL\MySQL Server 8.0\bin

Configure this path Pathinto

keep clicking确定

Now you can directly open MySQL with system commands

4. Uninstall

First call up the system service, win + Ropen the run, enter services.msc, click确定

Find the MySQL program and 右键select 停止Run

open 控制面板, select卸载程序

Uninstall MySQL related components

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5. Possible problems

(1) Use the database management tool to connect to the TimesPlugin caching_sha2_password could not be loaded:********

The new version of MySQL uses it caching_sha2_passwordas , while the old version uses it mysql_native_password. When an error is reported when connecting to MySQL plugin caching_sha2_password could not be loaded, you can switch back to the old version of the plug-in.

solution:

After logging in to mysql from the command line, modify the user's authentication plug-in

# 修改 root 用户的身份验证插件为 mysql_native_password
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456';

# 刷新
FLUSH PRIVILEGES；

reconnect

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Reference blog:
SQLyog error number plugin caching_sha2_password could not be loaded