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mysql如何更改数据库字符编码?借助客户端工具很容易就可以更改了,下面来看一下。
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01
打开navicat客户端工具,在左边找到要更改的数据库。
02
右键点击这个数据库,在菜单上点击数据库属性选项。
03
在弹出的属性窗口上,点击默认字符集下的下拉框。
04
在弹出的下拉选项里,点击选中要使用的字符集就行了,比如选择常用的utf8字符集,点击ok按钮就行了。
1、修改配置文件,在其中分别加入以下,重启数据库
[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
character-set-server=utf8
2、查看系统字符集
cat /etc/sysconfig/i18n 修改这个文件就可以实现修改系统字符集
LANG=en_US.UTF-8
3、
临时试修改字段字符集,然后查询数据看能否正常显示
set names utf8; (会话级别的修改不会影响实际数据)
以更改为UTF-8为例,GB2312雷同。
1、关闭mysql服务(以下为命令行中执行)
view plaincopy
service mysql stop
2、修改 /etc/mysql/my.cnf (默认的安装路径)
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vim /etc/mysql/my.cnf
打开my.cnf后,在文件内的[mysqld]下增加如下两行设置:
character_set_server=utf8
init_connect='SET NAMES utf8'
然后保存退出。
3、重新启动mysql服务
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service mysql start
至此,完成修改默认编码,登陆mysql后重新使用show variable like '%character%'获得的输出效果如下:
查看字符集设置
mysql show variables like 'collation_%';
+----------------------+-----------------+
| Variable_name | Value |
+----------------------+-----------------+
| collation_connection | utf8_general_ci |
| collation_database | utf8_general_ci |
| collation_server | utf8_general_ci |
+----------------------+-----------------+
3 rows in set (0.02 sec)
mysql show variables like 'character_set_%';
+--------------------------+----------------------------+
| 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 (0.02 sec)
mysql
其他的一些设置方法:
修改数据库的字符集
mysqluse mydb
mysqlalter database mydb character set utf-8;
创建数据库指定数据库的字符集
mysqlcreate database mydb character set utf-8;
通过配置文件修改:
修改/var/lib/mysql/mydb/db.opt
default-character-set=latin1
default-collation=latin1_swedish_ci
为
default-character-set=utf8
default-collation=utf8_general_ci
重起MySQL:
[root@bogon ~]# /etc/rc.d/init.d/mysql restart
通过MySQL命令行修改:
mysql set character_set_client=utf8;
Query OK, 0 rows affected (0.00 sec)
mysql set character_set_connection=utf8;
Query OK, 0 rows affected (0.00 sec)
mysql set character_set_database=utf8;
Query OK, 0 rows affected (0.00 sec)
mysql set character_set_results=utf8;
Query OK, 0 rows affected (0.00 sec)
mysql set character_set_server=utf8;
Query OK, 0 rows affected (0.00 sec)
mysql set character_set_system=utf8;
Query OK, 0 rows affected (0.01 sec)
mysql set collation_connection=utf8;
Query OK, 0 rows affected (0.01 sec)
mysql set collation_database=utf8;
Query OK, 0 rows affected (0.01 sec)
mysql set collation_server=utf8;
Query OK, 0 rows affected (0.01 sec)
查看:
mysql show variables like 'character_set_%';
+--------------------------+----------------------------+
| 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 (0.03 sec)
mysql show variables like 'collation_%';
+----------------------+-----------------+
| Variable_name | Value |
+----------------------+-----------------+
| collation_connection | utf8_general_ci |
| collation_database | utf8_general_ci |
| collation_server | utf8_general_ci |
+----------------------+-----------------+
3 rows in set (0.04 sec)