Home Database Mysql Tutorial MySQL修改默认字符集为utf-8

MySQL修改默认字符集为utf-8

Jun 07, 2016 pm 03:10 PM

MySQL修改环境的默认字符集为utf-8(当然你也可以设置成utf-8) ,首先得在服务里关掉MySQL的服务,然后到你的mysql的安装路径,如

MySQL修改环境的默认字符集为utf-8(当然你也可以设置成utf-8)  ,首先得在服务里关掉MySQL的服务,然后到你的mysql的安装路径,如果是自定义就找到自定义的路径,,默认是:C:\Program Files\MySQL\MySQL Server 5.0\my.ini。

MySQL修改默认字符集为utf-8

找到那个  client  mysql  里加入        default-character-set=utf8

mysqld下面加入:    default-character-set=utf8       

                              init_connect='SET NAMES utf8'

下面语句用于查看编码方式是否已经修改:
show variables like 'char%';

如果是的你的之前的数据库没有设置好:

对于已经存在了的数据库,可以如下操作使其改变编码方式:
a. 修改MYSQL数据库编码,如果是MYSQL数据库编码不正确: 可以在MYSQL执行如下命令: ALTER DATABASE test DEFAULT CHARACTER SET utf8; 
以上命令就是将MYSQL的test数据库的编码设为utf8
b. 修改MYSQL表的编码:ALTER TABLE category DEFAULT CHARACTER SET utf8;
以上命令就是将一个表category的编码改为utf8
c. 修改字段的编码:
ALTER TABLE `test` CHANGE `dd` `dd` VARCHAR( 45 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL
以上命令就是将MYSQL数据库test表中 dd的字段编码改为utf8

在命令行下插入汉字时如下代码:
set names gb2312;有时候这一句很关键!
insert into charset values('lmj');

然后再重启服务就可以 了。

如果出现无法启动服务的情况,就以管理员身份运行cmd先进入到mysql安装目录下,执行

mysqld -remove    移除服务

然后

mysqld -install  安装服务

就可以了

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