修改數據庫mysql字符編碼為UTF8
Mysql數據庫是一個開源的數據庫，應用非常廣泛。以下是修改mysql數據庫的字符編碼的操作過程。
步驟1：查看當前的字符編碼方法
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/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)
字符編碼為latin1時，用戶在給數據表插入一條字符類型（char）的記錄，在顯示此記錄時可能會無法正常顯示字符類型的數據，故此處我們將mysql字符編碼修改為UTF8。操作如下：
步驟2：修改my.cnf配置文件，修改后如下：
[client]
#password = your_password
port = 3306
socket = /var/lib/mysql/mysql.sock
default-character-set=utf8 #****設置默認編碼為UTF8**
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
default-character-set=utf8
init_connect='SET NAMES utf8'
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
步驟3，重啟mysql數據庫。
步驟4，重新連接mysql數據庫，并查看mysql的字符編碼。
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)
以上顯示說明已經修改成功
