centos7安装MySQL8

Step1 确认系统中是否安装了mysql
mysql -V
Step 2 下载mysql的repo源
1）去mysql官网：https://dev.mysql.com/downloads/repo/yum/，找到对应mysql版本：

2）得到repo源地址后使用wget进行下载：

wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm

yum localinstall mysql80-community-release-el7-3.noarch.rpm

yum install -y mariadb-server

systemctl start mysqld

查看密码
cat /var/log/mysqld.log | grep password

mysql -uroot -p

alter user 'root'@'localhost' identified by 'Root@8888';

use mysql

允许远程链接
update user set host='%' where user='root';

flush privileges;