mysql编码设置

mars531706

查看系统的字符集和排序方式的设定可以通过下面的两条命令或mysql> status 。
mysql> SHOW VARIABLES LIKE 'character_set_%';
+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | latin1 |
| character_set_results | latin1 |
| character_set_server | latin1 |
| character_set_system | utf8 |  
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
7 rows in set (0.00 sec)
mysql> SHOW VARIABLES LIKE 'collation_%';  
+----------------------+-------------------+
| Variable_name | Value |
+----------------------+-------------------+
| collation_connection | latin1_swedish_ci |
| collation_database | latin1_swedish_ci |  
| collation_server | latin1_swedish_ci |
+----------------------+-------------------+
3 rows in set (0.00 sec)
上面列出的值就是系统的默认值。(很奇怪系统怎么默认是latin1的瑞典语排序方式)...
当我们按照原来的方式通过PHP存取MySQL数据库时，就算设置了表的默认字符集为utf8并且通过UTF-8编码发送查询，你会发现存入数据库的仍然是乱码。问题就出在这个connection连接层上。解决方法是在发送查询前执行一下下面这句：  
1.  SET NAMES 'utf8';  它相当于下面的三句指令： SET character_set_client = utf8;  SET character_set_results = utf8; SET character_set_connection = utf8;  
2. 创建数据库
mysql> create database name character set utf8;
3.  创建表
CREATE TABLE `type` (
`id` int(10) unsigned NOT NULL auto_increment,
`flag_deleted` enum('Y','N') character set utf8 NOT NULL default 'N',  
`flag_type` int(5) NOT NULL default '0',
`type_name` varchar(50) character set utf8 NOT NULL default '',
PRIMARY KEY (`id`)
)  DEFAULT CHARSET=utf8;
4. 修改数据库成utf8的.
mysql> alter database name character set utf8;
5.  修改表默认用utf8.
mysql> alter table type character set utf8;
6. 修改字段用utf8
mysql> alter table type modify type_name varchar(50) CHARACTER SET utf8;  
               
               
               

本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u1/40133/showart_572202.html