安装MySQL Client

# 先卸载当前系统中安装的mariadb
rpm -qa | grep mariadb
# 卸载搜索出来的mariadb版本
yum remove -y mariadb

# 去mysql官网下载mysql-common mysql-libs mysql-client
# 我这里使用的是清华源下载<a rel="noreferrer noopener" href="https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql-5.7-community-el7-x86_64/" target="_blank">https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql-5.7-community-el7-x86_64/</a>
rpm -ivh mysql-common
rpm -ivh mysql-libs
rpm -ivh mysql-client

# 验证
mysql -uroot -p'root' -h127.0.0.1