Centos7安装MySQL8

1、查看是否安装过mysql

rpm -qa | grep -i mysql

2、删除mysql

yum -y remove MySQL-*

3、删除所有于mysql有关的文件

find / -name mysql

4、配置源

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

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

yum install mysql-community-client mysql-community-server

5、服务操作

#启动

service mysqld start 

#重启

service mysqld restart 

#停掉

service mysqld stop