https://www.softwarecollections.org/en/不用再GOOGLE寻找安装方法。
安装MYSQL示例：
# 2. Install the collection:
$ sudo yum install rh-mariadb103
# 3. Start using software collections:
$ scl enable rh-mariadb103 bash
$ service rh-mariadb103-mariadb start
$ mysql
$ mysqld
#开机加载命令
cp /opt/rh/rh-mariadb103/enable /etc/profile.d/rh-mariadb103.sh