MySQL的三大版本
a）MySQL Enterprise Edition：企业版本（付费）
b）MySQL Cluster CGE：高级集群版（收费）
c）MySQL Community Server：社区版（开源）
登录MySQL官网
https://www.mysql.com/downloads/
点击“DOCUMENTATION”——“MySQL Server”——“Installing and Upgrading MySQL”——“Installing MySQL on Linux”
点击：Installing MySQL on Linux Using the MySQL Yum Repository
点击：https://dev.mysql.com/downloads/repo/yum/
点击linux 7——download
右键复制链接地址
wget https://dev.mysql.com/get/mysql80-community-release-el7-7.noarch.rpm操作步骤如下：
cd /opt/
wget https://dev.mysql.com/get/mysql80-community-release-el7-7.noarch.rpm
yum install mysql80-community-release-el7-7.noarch.rpm
gcc -v
yum update
yum list | grep mysql
yum install mysql-community-server
root@jumpserver-app-t01:/opt#mysql -V
mysql Ver 8.0.32 for Linux on x86_64 (MySQL Community Server - GPL)
简单方法，去阿里源中找到mysql-community-server-8.0.28-1.el7.x86_64.rpm，下载到本地后，然后yum localinstall ./*
这样既能安装该组件，还能安装所需依赖
cd /opt
mkdir mysql
cd mysql
wget https://mirrors.aliyun.com/mysql/MySQL-8.0/mysql-community-server-8.0.28-1.el7.x86_64.rpm?spm=a2c6h.25603864.0.0.5e8670b2c1XZn4
yum localinstall ./*
后面一路选Y安装即可标签：8.0,MySQL,28,community,CentOS7,yum,mysql,el7 From： https://www.cnblogs.com/Magiclala/p/17142039.html