如題，原因是創建數據庫和表的時候 默認字符集設置的問題，修改即可。
下面是批量修改數據庫所有表的列的 默認字符集 Python 腳本
#! /usr/bin/env python
import MySQLdb
host='localhost'
password='your passwd'
user='your user name'
dbname='your database naem'
db=MySQLdb.connect(host=host,user=user,passwd=password,db=dbname)
cursor=db.cursor()
cursor.execute("ALTER DATABASE `%s` CHARACTER SET 'utf8' COLLATE 'utf8_unicode_ci'" % dbname)
sql = "SELECT DISTINCT(table_name) FROM information_schema.columns WHERE table_schema = '%s'" % dbname
cursor.execute(sql)
results=cursor.fetchall()
for row in results:
#print row[0]
sql="ALTER TABLE %s convert to character set DEFAULT COLLATE DEFAULT " % (row[0])
cursor.execute(sql)
db.close()MySQL 版本爲 5.5,其他版本沒有試。
打開MySQL 可以查看修改後的表的字符集
mysql> SELECT T.table_name, T.table_collation, CCSA.character_set_name FROM information_schema.`TABLES` T,
-> information_schema.`COLLATION_CHARACTER_SET_APPLICABILITY` CCSA
-> WHERE CCSA.collation_name = T.table_collation
-> AND T.table_schema = "databasename";
+----------------------------+-----------------+--------------------+
| table_name | table_collation | character_set_name |
+----------------------------+-----------------+--------------------+
| auth_group_permissions | utf8_unicode_ci | utf8 |
| auth_permission | utf8_unicode_ci | utf8 |
| auth_user | utf8_unicode_ci | utf8 |
| auth_user_groups | utf8_unicode_ci | utf8 |
| auth_user_user_permissions | utf8_unicode_ci | utf8 |
| table_name1 | utf8_unicode_ci | utf8 |
| table_name2 | utf8_unicode_ci | utf8 |
| table_name3 | utf8_unicode_ci | utf8 |
| table_name4 | utf8_unicode_ci | utf8 |
| django_admin_log | utf8_unicode_ci | utf8 |
| django_content_type | utf8_unicode_ci | utf8 |
| django_session | utf8_unicode_ci | utf8 |
+----------------------------+-----------------+--------------------+
14 rows in set (0.03 sec)