Installing MySQL for Linux operating system (centos7)

One 、 Download command wget

yum -y install wget

  Two 、 Download Online MySQL Installation package

wget https://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm

3、 ... and 、 install MySQL  

rpm -ivh mysql57-community-release-el7-8.noarch.rpm

Four 、 install MySQL service

1. Enter the first cd /etc/yum.repos.d/ Catalog

cd /etc/yum.repos.d/

2. install

yum -y install mysql-server

3. Possible problems during installation
          The failed package is ：mysql-community-libs-compat-5.7.39-1.el7.x86_64
 GPG  The key is configured as ：file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

Solution :

rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022

  Then re install :

yum -y install mysql-server

5、 ... and 、 start-up MySQL