Install MySQL using CentOS yum

1. download mysql Source installation package

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

2. install mysql Source

yum localinstall mysql57-community-release-el7-8.noarch.rpm 

3, Check mysql Source installed successfully

yum repolist enabled | grep "mysql.*-community.*"

4. install Mysql

yum install mysql-community-server

5. start-up mysql

systemctl start mysqld

6. Set boot up

systemctl enable mysqld
systemctl daemon-reload

8. modify root Local login password

1） see mysql Initial password

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

2） Connect mysql

mysql -uroot -p

Enter the password obtained in the first step

3） Change Password

    ALTER USER 'root'@'localhost' IDENTIFIED BY 'Newpassword';
     perhaps 
    set password for 'root'@'localhost'=password('Newpassword');

The following error may occur
Your password does not satisfy the current policy requirements

because Mysql Default password policy used , If you need to set a simple password , Click on the link below ：
https://blog.csdn.net/qq_37135484/article/details/98735515