MySQL服务端编码设置-mysql查看数据库编码

安装完mysql，启动后发现服务器默认使用的是lat1编码。

具体操作和查看过程如下：

启动方式：/etc/init.d/mysql.server start

效果：

Database changed
mysql> status
--------------
mysql Ver 14.12 Distrib 5.0.77, for redhat-linux-gnu (x86_64) using readline 5.1

Connection id: 8
Current database: demodb
Current user: root@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ''
Using delimiter: ;
Server version: 5.5.21 MySQL Community Server (GPL)
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: latin1
Db characterset: utf8
Client characterset: latin1
Conn. characterset: latin1
UNIX socket: /var/lib/mysql/mysql.sock
Uptime: 33 sec

Threads: 7 Questions: 137 Slow queries: 0 Opens: 83 Flush tables: 1 Open tables: 76 Queries per second avg: 4.151
--------------

mysql>

启动方式： /etc/init.d/mysql.server start --character-set-server=utf8

效果：

mysql> use demodb;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> status;
--------------
mysql Ver 14.12 Distrib 5.0.77, for redhat-linux-gnu (x86_64) using readline 5.1

Connection id:       4
Current database:    demodb
Current user:       root@localhost
SSL:           Not in use
Current pager:       stdout
Using outfile:       ''
Using delimiter:   ;
Server version:       5.5.21 MySQL Community Server (GPL)
Protocol version:   10
Connection:       Localhost via UNIX socket
Server characterset:   utf8
Db     characterset:   utf8
Client characterset:   latin1
Conn. characterset:   latin1
UNIX socket:       /var/lib/mysql/mysql.sock
Uptime:           1 min 15 sec

Threads: 4 Questions: 131 Slow queries: 0 Opens: 84 Flush tables: 1 Open tables: 77 Queries per second avg: 1.746
--------------

mysql>

这种方式,在每次启动的时候都需要指定编码参数。否则服务器就使用的是系统默认的lat1编码。

另外一种方法是：

mysql>set character_set_server=utf8;

这种方法我也试了，不行，再重新登录客户端后，就又恢复了原来的编码。理由很简单，系统启动的时候用的不是utf8编码。

一劳永逸的办法,就是通过修改配置文件实现.

# vim /etc/my.cnf

内容如下:

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql

#添加下面的红字内容

character-set-server=utf8

# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

原文链接：http://www.blogjava.net/zhyiwww/archive/2012/03/01/371055.html

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