1、修改數據庫字符編碼

mysql> alter database mydb character set utf8 ;

2、創建數據庫時，指定數據庫的字符編碼

mysql> create database mydb character set utf8 ;

3、查看mysql數據庫的字符編碼

mysql> show variables like 'character%';?//查詢當前mysql數據庫的所有屬性的字符編碼

+--------------------------+----------------------------+

| Variable_name??????????? | Value????????????????????? |

+--------------------------+----------------------------+

| character_set_client???? | latin1???????????????????? |

| character_set_connection | latin1???????????????????? |

| character_set_database?? | utf8?????????????????????? |

| character_set_filesystem | binary???????????????????? |

| character_set_results??? | latin1???????????????????? |

| character_set_server???? | utf8?????????????????????? |

| character_set_system???? | utf8?????????????????????? |

| character_sets_dir?????? | /usr/share/mysql/charsets/ |

+--------------------------+----------------------------+

4、修改mysql數據庫的字符編碼

修改字符編碼必須要修改mysql的配置文件my.cnf,然后重啟才能生效

通常需要修改my.cnf的如下幾個地方：

【client】下面，加上default-character-set=utf8，或者character_set_client=utf8

【mysqld】下面，加上character_set_server = utf8 ；

因為以上配置，mysql默認是latin1，如果僅僅是通過命令行客戶端，mysql重啟之后就不起作用了。

如下是客戶端命令行修改方式，不推薦使用

mysql> set character_set_client=utf8 ;

mysql> set character_set_connection=utf8 ;

mysql> set character_set_database=utf8 ;

mysql> set character_set_database=utf8 ;

mysql> set character_set_results=utf8 ;

mysql> set character_set_server=utf8 ;

mysql> set character_set_system=utf8 ;

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/ |

+--------------------------+----------------------------+

8 rows in set (0.00 sec)

總結

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