MySQL is an open-source database management system. CentOS prefers MariaDB by default, a fork of MySQL managed by the original MySQL developers and designed …

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MySQL 8 can be installed on CentOS and RHEL-based distributions by downloading the official MySQL Community Yum Repository package, verifying its integrity with md5sum, and installing it via rpm. After adding the repository, MySQL server is installed using yum or dnf, then started with systemctl. A temporary root password is generated during installation and must be changed using mysql_secure_installation, which also removes insecure defaults. CentOS defaults to installing MariaDB instead of MySQL when using standard package managers, so the official MySQL repository is required for Oracle MySQL installation.

How To Install MySQL on CentOS