yum安装mysql（cent os 7）

一、检查系统是否安装其他版本的MYSQL数据

#yum list installed | grep mysql

#yum -y remove mysql-libs.x86_64

二、安装及配置

# wget http://repo.mysql.com/mysql-community-release-el6-5.noarch.rpm

# rpm -ivh mysql-community-release-el6-5.noarch.rpm

# yum repolist all | grep mysql

安装MYSQL数据库

# yum install mysql-community-server -y

设置为开机启动(2、3、4都是on代表开机自动启动)

# chkconfig --list | grep mysqld

# chkconfig mysqld on

三、设置远程root

启动mysql

# service mysqld start

设置root密码

# mysql_secure_installation

登陆root账号

# mysql -u root -p

建立远程root用户

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '你设置的密码' WITH GRANT OPTION;

mysql> flush privileges;

四、设置utf-8编码

查看mysql原本编码：

mysql> show variables like 'character%';

设置编码

# vi /etc/my.cnf

如下(少补)：

[mysqld]

character-set-server=utf8

collation-server=utf8_general_ci

performance_schema_max_table_instances=400

table_definition_cache=400

table_open_cache=256# 修改

sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

[mysql]default-character-set= utf8

[mysql.server]default-character-set= utf8

[mysqld_safe]default-character-set= utf8

[client]default-character-set= utf8

重启mysql

# service mysqld restart

再次查看编码：

 # mysql -u root -p

mysql> 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/ |

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

8 rows in set (0.00 sec)