MySQL 安装

下载

下载地址 ： https://dev.mysql.com/downloads/mysql/

-- 下载地址

wget https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-community-client-plugins-8.0.25-1.el8.x86_64.rpm

wget https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-community-common-8.0.25-1.el8.x86_64.rpm

wget https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-community-libs-8.0.25-1.el8.x86_64.rpm

wget https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-community-server-8.0.25-1.el8.x86_64.rpm

wget https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-community-client-8.0.25-1.el8.x86_64.rpm

--安裝順序，根据情况适当调整

1)  rpm -ivh mysql-community-common-8.0.25-1.el8.x86_64.rpm

2) rpm -ivh mysql-community-client-plugins-8.0.25-1.el8.x86_64.rpm

3) rpm -ivh mysql-community-client-8.0.25-1.el8.x86_64.rpm

4) rpm -ivh mysql-community-libs-8.0.25-1.el8.x86_64.rpm

5) rpm -ivh mysql-community-server-8.0.25-1.el8.x86_64.rpm

-- 启动数据库
service mysqld start

-- 查看数据库运行状态
service mysqld status

-- 停止数据库
service mysqld stop

-- 重启
service mysqld restart

用户密码重置

-- 打开mysql的配置文件
vim /ect/my.cnf

-- 添加如下两行配置,启用免密登录
[mysqld]
skip-grant-tables

-- 重启M有SQL服务
service mysqld restart

-- 重新登录MySQL
mysql -uroot -p

-- 选择数据库
use mysql

-- 将root账号密码置空，该语句为MySQL 8.0 
update user set authentication_string = '' where user = 'root';

-- 设置新密码
alter user user() identified by 'root@123456';

修改加密方式

-- 登录
mysql -uroot -pRoot@123456

-- 选择数据库
use mysql

-- 修改
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'Root@123456';