rpm -qa | grep mysql 查看安装的
yum remove mysql-devel
yum remove mariadb-libs
可以从这个网址搜索得到 http://rpm.pbone.net/ 下载
rpm -ivh mysql-community-client-plugins-8.0.28-1.el7.x86_64.rpm mysql-community-common-8.0.28-1.el7.x86_64.rpm mysql-community-libs-8.0.28-1.el7.x86_64.rpm
rpm -ivh mysql-community-devel-8.0.28-1.el7.x86_64.rpm
// rpm -ivh mysql-community-libs-8.0.28-1.el7.x86_64.rpm --nodeps --force
rpm -ivh mysql-community-client-8.0.28-1.el7.x86_64.rpm
rpm -e 卸载的
