The MySQL database installed configuration nanny level tutorial for 8.0.29 (for example) have hands

MySQL数据库安装配置保姆级教程（以8.0.29为例）有手就行

• MySQL下载
• MySQL安装
• • 环境变量
  • 修改密码（可强行修改）
• END

本教程适合在MySQL登录时一直出现ERROR 1045 (28000): Access denied for user ‘root’@‘localhost’ (using password: YES)的朋友们,教程写得很详细了,已经非常啰嗦了,但是又害怕有很多在这第一步上经常会出问题的朋友出现,所以做了这个教程

MySQL下载

1、找到官网链接: link https://www.mysql.com/
滑到最下方找到DOWNLOADS下载;
点击MySQL Community Server（社区版）;

选择下载较小的那个压缩包;

2、将mysql的 zip 包解压到相应的目录,重命名为mysql.

MySQL安装

1、创建MySQL 的配置文件,在mysql文件夹下新建一个my.txt文件,改后缀名为ini（Move the folder menu bar“查看“Check this item）
win11用户：

2、Then edit the created onemy.ini文件 (记事本打开),将下面的内容复制到my.ini文件中,basedirRemember to modify the content after that to your actual installation path.

[mysql]
# 设置mysql客户端默认字符集
default-character-set=utf8
[mysqld]
# 设置mysql默认端口号
port=3306
# 设置mysql的安装目录
basedir=C:mysql
# 允许最大连接数
max_connections=20
# 服务端使用的字符集默认为utf-8
character-set-server=utf8
# 创建新表时将使用的默认存储引擎
default-storage-engine=INNODB

环境变量

3、右键桌面的“此电脑”找到属性,在新窗口中找到“高级系统设置”

找到环境变量

在用户变量的Path中添加mysql的路径

先点击新建,再点击浏览

找到mysqlindirectory and click确定,All the way to confirm to save

4、打开CMD命令行（It is strongly recommended to open it as an administrator）,切换到C:/mysql/bin目录下.

4、初始化数据库,输入如下命令（注意是在C:/mysql/bin目录下）:

mysqld --initialize --console

执行完成后,会输出root用户的初始默认密码(The password obtained at this time is not important for this tutorial)
The default password I derived here is ：)2C*YZ;+sVQw

5、安装mysql服务,命令如下：

   mysqld install

This command must be used in the command box under administrator status
Otherwise you will be promptedInstall/Remove of the Service Denied!（拒绝安装）

6.启动mysql服务,命令如下：

   net start mysql

7.初始化data目录,命令如下：

   mysqld --initialize-insecure

8.At this point there is an option to log in but the initial password is too complex

修改密码（可强行修改）

This method can change the password without knowing the original password
此时我们在mysql根目录创建一个txtThe file name is arbitrarily chosen here I named itmm.txt
在txt文件下加入以下内容：

   ALTER USER 'root'@localhost IDENTIFIED BY '123456';

意思是将密码设置成123456

Open the command box again as an administrator
先暂停mysql服务

   net stop mysql

命令行方式启动服务器,After executing the above password modification command file at startup, the process will be occupied for a period of time
Note the address is hereC:mysqlmm.txt需要改成你的mm.txt所在地址

   mysqld --init-file=C:mysqlmm.txt --console

This time we close the command box,Then reopen a new command box,Launch in the reopened command boxmysql服务

   net start mysql

After that try to open the loginmysql

   mysql -uroot -p
   或者
   mysql -uroot -p123456

END

Many students still have problems,比如说出现：
Enter password: ******
ERROR 1045 (28000): Access denied for user ‘root’@‘localhost’ (using password: YES)
This situation meansusing password: YESYou entered your password,如果这里是NOIndicates that you did not enter a password
There are two reasons for this problem,The first case is that it cannot be connectedmysql服务器（In general, it is a problem of permissions and a problem of not starting the service,一般不会出现这个问题）,The second case is that the password is wrong（You can follow the tutorial again,It may be that the password change has not been successfully changed）

教程写得很详细了,已经非常啰嗦了,但是又害怕有很多在这第一步上经常会出问题的朋友出现,所以做了这个教程,感谢你们的观看！

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