CentOS7安装MySQL5.7

wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm

yum -y install mysql57-community-release-el7-10.noarch.rpm

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

yum -y install mysql-community-server

systemctl start mysqld

systemctl status mysqld

grep "password" /var/log/mysqld.log

mysql -uroot -p

ALTER USER 'root'@'localhost' IDENTIFIED BY 'DD@123456!';

grant all privileges on *.* to 'root'@'%' identified by 'DD@123456!' with grant option;

flush privileges;