First check if there is an installed MySQL
# Yum List Installed | grep MySQL
If there is a delete:
Yum Remove software Name
CentOS 7 's Yum source does not have a normal mysql-sever file installed in MySQL and needs to be downloaded from the official website
# wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm# RPM-IVH mysql-community-release-el7-5.noarch.rpm# Yum Install Mysql-community-server
Restart MySQL service after successful installation
# Service Mysqld Restart
The initial installation of MySQL is a root account without a password
How to set a password
# mysql-u root mysql> set password for ' root ' @ ' localhost ' = password (' 666 '); Mysql> exit
Get!
MySQL has more than one user in the Mysql.user table after the installation is complete, it is recommended to clear other users other than root, to ensure security and unnecessary bugs
Mysql> Delete from Mysql.user where host! = ' localhost ' or user! = ' root ';mysql> exit
centos7.x installing Mysql5.6 with Yum