这个文件里面是我在工作时候用到的，更具有实用价值
1 show variables like 'character_set_%';
查看变量：
+--------------------------+--------------------------------------------+ | Variable_name | Value | +--------------------------+--------------------------------------------+ | character_set_client | gbk | | character_set_connection | gbk | | character_set_database | gbk | | character_set_filesystem | binary | | character_set_results | gbk | | character_set_server | gbk | | character_set_system | utf8 | | character_sets_dir | /home/mysql/mysql_uc/share/mysql/charsets/ | +--------------------------+--------------------------------------------+
2
