centos6安装MySQL

Step1: 检测系统是否自带安装mysql

yum list installed | grep mysql

Step2: 删除系统自带的mysql及其依赖

yum -y remove mysql-libs.x86_64

Step3: 给CentOS添加rpm源，并且选择较新的源

wget dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm
yum localinstall mysql-community-release-el6-5.noarch.rpm
yum repolist all | grep mysql
yum-config-manager --disable mysql55-community
yum-config-manager --disable mysql56-community
yum-config-manager --enable mysql57-community-dmr
yum repolist enabled | grep mysql

Step4:安装mysql 服务器

yum install mysql-community-server

Step5: 启动mysql

service mysqld start

Step6: 查看mysql是否自启动,并且设置开启自启动

chkconfig --list | grep mysqld
chkconfig mysqld on

Step7: mysql安全设置

mysql_secure_installation

Step8: 由于mysql刚刚安装完的时候，mysql的root用户的密码默认是空的，所以我们需要及时用mysql的root用户登录（第一次回车键，不用输入密码），并修改密码

mysql -u root
use mysql;
update user set password=PASSWORD("这里输入root用户密码") where User='root';

Step9: 授权（自动创建）一个mysql的非root的liming用户，能访问localhost上的test数据库，密码是xxxx，最后刷新权限

grant all privileges on test.* to liming@localhost identified by 'xxxx';
flush privileges;

Step10: 创建一个utf8的表(如果你有需要的话)之后退出

CREATE DATABASE `database` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci; 
exit;