Detailed explanation of deletion/installation/encoding configuration file configuration of MySQL 5.6 version under Ubuntu

这篇文章主要介绍了ubuntu mysql 5.6版本的删除，安装，编码配置文件配置,需要的朋友可以参考下

1. 删除MySQL

a. sudo apt-get autoremove --purge mysql-server*
b. sudo apt-get remove mysql-server
c. sudo apt-get autoremove mysql-server
d. sudo apt-get remove mysql-common (非常重要)

上面的其实有一些是多余的，建议还是按照顺序执行一遍

2. 清理残留数据

dpkg -l |grep ^rc|awk '{print $2}' |sudo xargs dpkg -P

3. 安装 mysql

a. sudo apt-get install mysql-server
b. sudo apt-get install mysql-client
c. sudo apt-get install php5-mysql(安装php5-mysql是将php和mysql连接起来 )

安装完后可以mysql服务就启动了，也可以通过以下命令对管理mysql服务

service mysql start (启动mysql) 
service mysql stop  (关闭mysql) 
service mysql restart (重启mysql)

使用如下命令进入mysql中

mysql -u root -p 123456 (123456为自己设置的密码)

查看编码

show variables like '%character%'; 
[python] view plain copy
mysql> show variables like 'character%'; 
+--------------------------+----------------------------+ 
| Variable_name      | Value           | 
+--------------------------+----------------------------+ 
| character_set_client   | utf8            | 
| character_set_connection | utf8            | 
| character_set_database  | latin1           | 
| character_set_filesystem | binary           | 
| character_set_results  | utf8            | 
| character_set_server   | latin1           | 
| character_set_system   | utf8            | 
| character_sets_dir    | /usr/share/mysql/charsets/ | 
+--------------------------+----------------------------+

会发现有些编码是latin1，会导致中文乱码的问题，下面修改编码配置

cd /etc/mysql/my.cnf (编码的修改上要注意自己的mysql版本和系统，有可能不同) 
sudo chmod 775 my.cnf 
sudo vim my.cnf

在文件后面添加如下内容

[python] view plain copy
[mysqld] 
character-set-server=utf8

ESC + :wq 保存退出

使用service mysql restart 重启mysql 服务即可

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