MySQL8安装记录
1. 下载解压
2. 进入MySql目录创建my.ini文件
文件配置如下：`[mysqld]
# 设置3306端口
port=3306
# 设置mysql的安装目录
basedir=D:\mysql-8.0.22-winx64
# 设置mysql数据库的数据的存放目录
datadir=D:\mysql-8.0.22-winx64\data
# 允许最大连接数
max_connections=200
# 允许连接失败的次数。这是为了防止有人从该主机试图攻击数据库系统
max_connect_errors=10
# 服务端使用的字符集默认为UTF8
character-set-server=utf8
# 创建新表时将使用的默认存储引擎
default-storage-engine=INNODB
# 默认使用“mysql_native_password”插件认证
default_authentication_plugin=mysql_native_password
[mysql]
# 设置mysql客户端默认字符集
default-character-set=utf8
[client]
# 设置mysql客户端连接服务端时默认使用的端口
port=3306
default-character-set=utf8
# 忽略密码
# skip-grant-tables`
3. 配置环境变量
设置变量名：MYQSQL_HOME
设置变量值：D:\mysql-8.0.22-winx64
然后path也要配置：D:\mysql-8.0.22-winx64\bin
亦可[%MYSQL_HOME%\bin]
4. 初始化
- 进入目录下的bin目录执行命令：
mysqld --initialize --console - 完毕后出现如下窗口：！一定要记住密码
2022-02-10T04:13:25.937126Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: 2HhwIwU/twne上述窗口表示成功记录下临时密码
5.安装启动服务mysqld --install root
成功后如下
6. 接下来就是启动服务器了，输入命令：
net start mysql
7. 登录并修改密码
mysql -u root -p
输入密码后登录成功显示mysql版本Server version: 8.0.22
8. 修改密码
D:\mysql-8.0.22-winx64\bin>mysql -u root -p Enter password: ************ Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 8 Server version: 8.0.22
修改密码命令：mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'newpassword';
全部命令如下：
D:\mysql-8.0.22-winx64\bin>mysqld --install
Service successfully installed.
D:\mysql-8.0.22-winx64\bin>net start mysql
MySQL 服务正在启动 ....
MySQL 服务已经启动成功。
D:\mysql-8.0.22-winx64\bin>mysql -u root -p
Enter password: ************
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.22
Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'newpassword';
Query OK, 0 rows affected (0.26 sec)
mysql>
