[root@localhost ~]# yum -y install mysql-server

Installed:
 mysql-server.x86_64 0:5.1.73-7.el6                        
Dependency Installed:
 mysql.x86_64 0:5.1.73-7.el6        
 perl-DBD-MySQL.x86_64 0:4.013-3.el6        
Complete!

[root@localhost ~]# chkconfig mysqld on

[root@localhost ~]# service mysqld start

[root@localhost ~]# service mysqld stop

[root@localhost ~]# service mysqld restart

[root@stonex ~]# mysql -u root
mysql> set password for root@localhost=password('root');
mysql> exit

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
#最重要的下面这一行代码
skip-grant-tables
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

[root@localhost ~]# service mysqld restart

 [root@localhost ~]# mysql -u root
 mysql> use mysql;
 mysql> set password for root@localhost=password('root');
 mysql> flush privileges;
 mysql> exit;
 [root@localhost ~]# service mysqld restart

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

[root@localhost ~]# mysql -u root -p

show databases; //查看系统已存在的数据库
use databasesname;  //选择需要使用的数据库
drop database databasename; //删除选定的数据库
exit  //退出数据库的连接
create database test01;  //建立名为test的数据库
show tables;    // 列出当前数据库下的表
其他基本的增删改查使用标准SQL即可

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION;
FLUSH PRIVILEGES;