centos6安裝MySQL

Step1: 檢測系統是否自帶安裝mysql

yum list installed | grep mysql

Step2: 刪除系統自帶的mysql及其依賴

yum -y remove mysql-libs.x86_64

Step3: 給CentOS添加rpm源，並且選擇較新的源

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:安裝mysql 服務器

yum install mysql-community-server

Step5: 啓動mysql

service mysqld start

Step6: 查看mysql是否自啓動,並且設置開啓自啓動

chkconfig --list | grep mysqld
chkconfig mysqld on

Step7: mysql安全設置

mysql_secure_installation

Step8: 由於mysql剛剛安裝完的時候，mysql的root用戶的密碼默認是空的，所以我們需要及時用mysql的root用戶登錄（第一次回車鍵，不用輸入密碼），並修改密碼

mysql -u root
use mysql;
update user set password=PASSWORD("這裏輸入root用戶密碼") where User='root';

Step9: 授權（自動創建）一個mysql的非root的liming用戶，能訪問localhost上的test數據庫，密碼是xxxx，最後刷新權限

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

Step10: 創建一個utf8的表(如果你有需要的話)之後退出

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