How to Install MYSQL8.0 and Create Database on a CentOS7

添加国内更新镜像源，参考链接：https://blog.youkuaiyun.com/inslow/article/details/54177191

卸载旧版mysql，参考链接：https://blog.youkuaiyun.com/zhwyj1019/article/details/80274269

安装mysql8.0，参考链接：https://hostadvice.com/how-to/how-to-install-mysql-8-0-and-create-a-database-on-a-centos-7-linux-vps-or-dedicated-server

创建新用户Users，以及用户权限管理，参考链接：https://hostadvice.com/how-to/how-to-create-new-mysql-users-accounts-and-manage-mysql-privileges/

use mysql;
CREATE USER 'username'@'localhost' IDENTIFIED BY 'password';
GRANT ALL ON *.* TO 'username'@'localhost';
flush privileges;

mysql8 ：客户端连接caching-sha2-password问题

Good Luck !