[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

 1 [mysqld]
 2 datadir=/var/lib/mysql
 3 socket=/var/lib/mysql/mysql.sock
 4 user=mysql
 5 #最重要的下面这一行代码
 6 skip-grant-tables
 7 # Disabling symbolic-links is recommended to prevent assorted security risks
 8 symbolic-links=0
 9
10 [mysqld_safe]
11 log-error=/var/log/mysqld.log
12 pid-file=/var/run/mysqld/mysqld.pid

[root@localhost ~]# service mysqld restart

1 [root@localhost ~]# mysql -u root
2 mysql> use mysql;
3 mysql> set password for root@localhost=password('root');
4 mysql> flush privileges;
5 mysql> exit;
6 [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

1 show databases; //查看系统已存在的数据库
2 use databasesname;   //选择需要使用的数据库
3 drop database databasename; //删除选定的数据库
4 exit    //退出数据库的连接
5 create database test01;    //建立名为test的数据库
6 show tables;        // 列出当前数据库下的表
7 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;