安装mysql 笔记

//删除已经存在的mysql
rpm -qa|grep mysql
rpm -e mysql mysql-libs
yum -y remove mysql-server mysql mysql-libs

配置源
rpm -ivh http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm
yum repolist enabled | grep "mysql.*-community.*"

安装mysql
yum install mysql-community-server

启动mysql
service mysqld start

查看mysql状态 
service mysqld status

修改mysql密码
grep 'temporary password' /var/log/mysqld.log #先查看
mysql -uroot -p
输入密码直接复制上面查看到的
set password = password('Pw12345.'); 

设置远程访问
update user set host = '%' where user ='root';

扩展命令重启mysql
service mysqld restart