mysql字符集查看以及修改

1.查找MySQL的cnf文件的位置
find / -iname '*.cnf' -print
 
/usr/share/mysql/my-innodb-heavy-4G.cnf

/usr/share/mysql/my-large.cnf

/usr/share/mysql/my-small.cnf

/usr/share/mysql/my-medium.cnf

/usr/share/mysql/my-huge.cnf

/usr/share/texmf/web2c/texmf.cnf

/usr/share/texmf/web2c/mktex.cnf

/usr/share/texmf/web2c/fmtutil.cnf

/usr/share/texmf/tex/xmltex/xmltexfmtutil.cnf

/usr/share/texmf/tex/jadetex/jadefmtutil.cnf

/usr/share/doc/MySQL-server-community-5.1.22/my-innodb-heavy-4G.cnf

/usr/share/doc/MySQL-server-community-5.1.22/my-large.cnf

/usr/share/doc/MySQL-server-community-5.1.22/my-small.cnf

/usr/share/doc/MySQL-server-community-5.1.22/my-medium.cnf

/usr/share/doc/MySQL-server-community-5.1.22/my-huge.cnf

2. 拷贝 small.cnf、my-medium.cnf、my-huge.cnf、my-innodb-heavy-4G.cnf其中的一个到/etc下,命名为my.cnfcp /usr/share/mysql/my-medium.cnf /etc/my.cnf

3. 修改my.cnf

vi /etc/my.cnf

在[client]下添加default-character-set=utf8

在[mysqld]下添加default-character-set=utf8

4.重新启动MySQL

[root@bogon~]#/etc/rc.d/init.d/mysqlrestart

ShuttingdownMySQL[确定]

StartingMySQL.[确定]

[root@bogon~]#mysql-uroot-p

Enterpassword:

WelcometotheMySQLmonitor.Commandsendwith;or/g.

YourMySQLconnectionidis1

Server version: 5.1.22-rc-community-log MySQL Community Edition (GPL)

Type 'help;' or '/h' for help. Type '/c' to clear the buffer.

5.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    mysql>use mydb
   mysql>alter database mydb character set utf-8;创建数据库指定数据库的字符集
   mysql>create 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

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>showvariableslike'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)

(cs870101)

相关推荐