CentOS查看和修改MySQL字符集

转载自：http://blog.csdn.net/ouitiken/article/details/23171327

客户提供了MySQL的环境，但是不支持中文，

通过以下命令查看了MySQL的字符集

连接上mysql服务，输入以下命令

mysql>show variables like 'character_set%';

显示如下：

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1. +--------------------------+----------------------------+  
2. | Variable_name            | Value                      |  
3. +--------------------------+----------------------------+  
4. | character_set_client     | latin1                     |  
5. | character_set_connection | latin1                     |  
6. | character_set_database   | latin1                     |  
7. | character_set_filesystem | binary                     |  
8. | character_set_results    | latin1                     |  
9. | character_set_server     | latin1                     |  
10. | character_set_system     | utf8                       |  
11. | character_sets_dir       | /usr/share/mysql/charsets/ |  
12. +--------------------------+----------------------------+  

为了让MySQL支持中文，需要把字符集改变成UTF8，

方法如下：

1. 打开etc/my.cnf

2. 修改成如下内容，保存

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1. [client]  
2. port=3306  
3. socket=/var/lib/mysql/mysql.sock  
4. default-character-set=utf8  
5.   
6. [mysqld]  
7. datadir=/var/lib/mysql  
8. socket=/var/lib/mysql/mysql.sock  
9. user=mysql  
10. # Disabling symbolic-links is recommended to prevent assorted security risks  
11. symbolic-links=0  
12. character-set-server=utf8  
13.   
14. [mysql]  
15. no-auto-rehash  
16. default-character-set=utf8  
17.   
18. [mysqld_safe]  
19. log-error=/var/log/mysqld.log  
20. pid-file=/var/run/mysqld/mysqld.pid  

3. 重启mysql服务：service mysqld restart

再次查看mysql编码，已经更新成如下信息

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1. +--------------------------+----------------------------+  
2. | Variable_name            | Value                      |  
3. +--------------------------+----------------------------+  
4. | character_set_client     | utf8                       |  
5. | character_set_connection | utf8                       |  
6. | character_set_database   | utf8                       |  
7. | character_set_filesystem | binary                     |  
8. | character_set_results    | utf8                       |  
9. | character_set_server     | utf8                       |  
10. | character_set_system     | utf8                       |  
11. | character_sets_dir       | /usr/share/mysql/charsets/ |  
12. +--------------------------+----------------------------+