MySQL : Install MySQL 8.0 on CentOS 8/7

1. Adding the MySQL Yum Repository

Centos 8 - #wget https://repo.mysql.com/mysql80-community-release-el8-1.noarch.rpm
Centos 7 - #wget https://repo.mysql.com/mysql80-community-release-el7-1.noarch.rpm
Centos 6 - #wget https://dev.mysql.com/get/mysql80-community-release-el6-1.noarch.rpm

2. Installing Latest MySQL Version

#yum install mysql-community-server

3. Installing MySQL Release Series

#yum-config-manager --disable mysql57-community
#yum-config-manager --disable mysql56-community

4. Starting the MySQL Server

#service mysqld start
#service mysqld status
#mysql --version

5. Securing the MySQL Installation

#grep 'temporary password' /var/log/mysqld.log
#mysql_secure_installation

6. Connecting to MySQL Server

#mysql -u root -p

7. Updating MySQL with Yum

#yum update mysql-server 

Source: 

• https://www.tecmint.com/install-latest-mysql-on-rhel-centos-and-fedora/