Centos 7.9 yum install mysql8

1、从mysql官方网站上下载yum文件，最好是最新版本，不然偶尔出现GPG Keys错误。

MySQL :: Download MySQL Yum Repositoryhttps://dev.mysql.com/downloads/repo/yum/

安装：

rpm -ivh mysql80-community-release-el7-5.noarch.rpm

yum install mysql-community-server

启动：

systemctl start mysqld.service

systemctl enable mysqld.service

查看密码：

grep 'temporary password' /var/log/mysqld.log

修改密码：

mysql -uroot -p

ALTER USER 'root'@'localhost' IDENTIFIED BY 'Mq123#@!';

开启远程访问：

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'WITH GRANT OPTION;

FLUSH PRIVILEGES;