wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
rpm -ivh mysql-community-release-el7-5.noarch.rpm
yum update
yum install mysql-server
chown -R mysql:mysql /var/lib/mysql
mysqld --initialize
systemctl start mysqld
systemctl stop mysqld
systemctl status mysqld
新增用户
-- 创建新的root用户，替换'new_password'为您想要设置的密码
CREATE USER 'root'@'%' IDENTIFIED BY 'new_password';
-- 给予新用户从任何主机连接的权限
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;
-- 刷新权限使更改生效
FLUSH PRIVILEGES;
-- 退出MySQL
EXIT;
删除用户
DELETE FROM mysql.user WHERE User='root' AND Host='%';
FLUSH PRIVILEGES;