修改mysql默认字符集的两种方法详细解析

+--------------------------+---------------------------------+ 
| 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 | D:"mysql-5.0.37"share"charsets" | 
+--------------------------+---------------------------------+ 

mysql> SET character_set_client = utf8 ;
mysql> SET character_set_connection = utf8 ; 
mysql> SET character_set_database = utf8 ; 
mysql> SET character_set_results = utf8 ; 
mysql> SET character_set_server = utf8 ; 
mysql> SET collation_connection = utf8 ;
mysql> SET collation_database = utf8 ; 
mysql> SET collation_server = utf8 ; 

SET NAMES 'utf8';

SET character_set_client = utf8;
SET character_set_results = utf8; 
SET character_set_connection = utf8;