Linux下MySQL編碼問題

Linux環境下預設登入mysql之後show variables like '%character%', 出現

mysql> show variables like '%character%';

+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | latin1 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+

修改/etc/mysql/my.cnf

在[client]下增加default-character-set=utf8
在[mysqld]下增加default-character-set=utf8

同時加上init_connect='SET NAMES utf8' (設定串連mysql資料庫時使用utf8編碼，以讓mysql資料庫為utf8運行)

重新啟動mysql，執行:sudo /etc/init.d/mysql stop 然後sudo /etc/init.d/mysql start

mysql> show variables like '%character%';

+--------------------------+----------------------------+
| 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/ |
+--------------------------+----------------------------+

即使做了以上修改如果直接資料庫再建立表，然後存入中文，取出來的會是問號。解決的辦法是：

建立資料庫的時候指明預設字元集為utf8，如：
create database test default character set utf8;