This is what we got when working with Oracle Linux on Oracle cloud platform:
``` $ yum install mariadb-server
Loaded plugins: langpacks, ulninfo
Package mariadb-server is obsoleted by mysql-community-server, trying to install mysql-community-server-8.0.26-1.el7.x86_64 instead
Resolving Dependencies ```
There is a work-around but the way they picked up the word is kinda shocking...