修改mysql默認字符集的方法

 1 +--------------------------+---------------------------------+   
 2 | Variable_name | Value |   
 3 +--------------------------+---------------------------------+    
 4 | character_set_client | utf8 |   
 5 | character_set_connection | utf8 |   
 6 | character_set_database | utf8 |  
 7 | character_set_filesystem | binary |   
 8 | character_set_results | utf8 |   
 9 | character_set_server | utf8 |   
10 | character_set_system | utf8 |   
11 | character_sets_dir | D:"mysql-5.0.37"share"charsets" |   
12 +--------------------------+---------------------------------+  

mysql默認字符集可否進行修改呢?答案是確定的,下面就將教您兩種修改mysql默認字符集的方法,但願對您學習mysql默認字符集方面能有所啓迪。mysql

(1) 最簡單的修改方法,就是修改mysql的my.ini文件中的字符集鍵值,sql

如 default-character-set = utf8 
character_set_server = utf8數據庫

修改完後,重啓mysql的服務,service mysql restart學習

使用 mysql> SHOW VARIABLES LIKE 'character%';查看,發現數據庫編碼均已改爲utf8編碼

(2) 還有一種修改mysql默認字符集的方法,就是使用mysql的命令spa

1 mysql> SET character_set_client = utf8 ;  
2 mysql> SET character_set_connection = utf8 ;   
3 mysql> SET character_set_database = utf8 ;   
4 mysql> SET character_set_results = utf8 ;    
5 mysql> SET character_set_server = utf8 ;   
6  
7 mysql> SET collation_connection = utf8 ;  
8 mysql> SET collation_database = utf8 ;   
9 mysql> SET collation_server = utf8 ; 

通常就算設置了表的mysql默認字符集爲utf8而且經過UTF-8編碼發送查詢,你會發現存入數據庫的仍然是亂碼。問題就出在這個connection鏈接層上。解決方法是在發送查詢前執行一下下面這句:rest

1 SET NAMES 'utf8';  

它至關於下面的三句指令:code

1 SET character_set_client = utf8;  
2 SET character_set_results = utf8;   
3 SET character_set_connection = utf8; 

還有一個最簡單的方法, 安裝的時候選擇字符集 .如圖server

 

轉自 : http://database.51cto.com/art/201010/229167.htmhtm

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