mysql编码设置

今天把系统一键还原了，mysql也重装了，之后发现mysql的默认编码是Latin1的，与我要的utf8有冲突。
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。
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;
最简单的办法当然是在向导上重新设置编码，把默认的改为utf8