CentOS7安装mysql

# 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
# service mysqld restart


# mysql -uroot

mysql> set password for ‘root’@‘localhost’ = password('mypasswd');

mysql> exit

mysqladmin -u root password "newpass"
mysqladmin -u root password oldpass "newpass"