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在CentOS上安装Mysql

2015-06-30 10:54 429 查看
1、查看CentOS自带mysql是否已安装。

输入:yum list installed | grep mysql

2、

导入第三方源webtatic

rpm -Uvh http://repo.webtatic.com/yum/centos/5/latest.rpm
3、安装MySQL client

yum install libmysqlclient15 --enablerepo=webtatic

4、删除存在的mysql

yum remove mysql mysql-*

5、安装服务器端

yum -y install mysql-server

6、安装客户端

yum -y install mysql



7、开机启动

chkconfig mysqld on



8、开启服务

service mysqld start



9、设置密码

>>mysql -u root

>>UPDATE user SET Password=PASSWORD('newpassword') where USER='root'

重新启动服务即可

登录方式

mysql -uroot -p

================参数设置

1、设置编码

[mysqld]下面:
default-character-set=utf8 或者 character-set-server=utf8


[mysql]下面:

default-character-set=utf8



2、wait_out参数

[mysqld]下面:



wait_timeout=31536000

interactive_timeout=31536000



3、设置最大连接

[mysqld]下面:



set-variable= max_connections=32000

show variables like 'character%';

+--------------------------+----------------------------+

| Variable_name | Value |

+--------------------------+----------------------------+

| character_set_client | utf8 |

| character_set_connection | utf8 |

| character_set_database | utf8 |

| character_set_filesystem | binary |

| character_set_results | utf8 |

| character_set_server | utf8 |

| character_set_system | utf8 |

| character_sets_dir | /usr/share/mysql/charsets/ |

+--------------------------+----------------------------+

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