mysql数据库的字符编码设置

对于mysql数据库来讲编码是一个比较重要的参数了,特别在以前低版本的mysql中,如果编码未设置好中文就会是乱码了,下面我给各位整理了一篇关于mysql数据库的字符编码设置教程供各位参考.

默认登录mysql之后show variables like ‘%character%’,出现:

1. mysql》showvariableslike‘%character%’;
2. +--------------------------+----------------------------+
3. |Variable_name|Value|--phpfensi.com
4. +--------------------------+----------------------------+
5. |character_set_client|latin1|
6. |character_set_connection|latin1|
7. |character_set_database|latin1|
8. |character_set_filesystem|binary|
9. |character_set_results|latin1|
10. |character_set_server|latin1|
11. |character_set_system|utf8|
12. |character_sets_dir|/usr/share/mysql/charsets/|
13. +--------------------------+----------------------------+

1. 找到mysql的配置文件,拷贝到etc目录下,第一步很重要,使用find命令查找cnf文件,记得不要去找my.cnf因为它不一定存在,而应该找*.cnf.

1. [root@linuxserverclasses]find/-iname*.cnf-print
2. /usr/share/doc/mysql-server-4.1.12/my-medium.cnf
3. /usr/share/doc/mysql-server-4.1.12/my-huge.cnf
4. /usr/share/doc/mysql-server-4.1.12/my-innodb-heavy-4G.cnf
5. /usr/share/doc/mysql-server-4.1.12/my-large.cnf
6. /usr/share/doc/mysql-server-4.1.12/my-small.cnf
7. /usr/share/texmf/web2c/mktex.cnf
8. /usr/share/texmf/web2c/texmf.cnf
9. /usr/share/texmf/web2c/fmtutil.cnf
10. /usr/share/texmf/tex/jadetex/jadefmtutil.cnf
11. /usr/share/ssl/openssl.cnf

找到之后,复制一个出来:

cp /usr/share/doc/mysql-server-4.1.12/my-large.cnf /etc/my.cnf

2.打开my.cnf修改编码:

vi /etc/my.cnf

在[client]下增加default-character-set=utf8,在[mysqld]下增加default-character-set=utf8,同时加上init_connect=‘SET NAMES utf8’(设定连接mysql数据库时使用utf8编码,以让mysql数据库为utf8运行)

重新启动mysql，执行：sudo /etc/init.d/mysql stop 然后sudo /etc/init.d/mysql start.

1. mysql》showvariableslike‘%character%’;
2. +--------------------------+----------------------------+
3. |Variable_name|Value|
4. +--------------------------+----------------------------+
5. |character_set_client|utf8|--phpfensi.com
6. |character_set_connection|utf8|
7. |character_set_database|utf8|
8. |character_set_filesystem|binary|
9. |character_set_results|utf8|
10. |character_set_server|utf8|
11. |character_set_system|utf8|
12. |character_sets_dir|/usr/share/mysql/charsets/|
13. +--------------------------+----------------------------+

即使做了以上修改如果直接数据库再创建表,然后存入中文,取出来的会是问号,解决的办法是.

创建数据库的时候指明默认字符集为utf8,如:

create database test default character set utf8;