database error no such column

when I've got my model.py like below:

from django.db import models
from django.core.files import File
import datetime
from django.utils import timezone

class Video(models.Model):
title = models.CharField(max_length = 200)
pub_date = models.DateTimeField('date published')
video = models.FileField(upload_to = 'videos')

def __unicode__(self):
return self.title

and got admin.py like this:
from videopage.models import Video
from django.contrib import admin

admin.site.register(Video)

and I manage.py sql videopage before I ran the server, It' normal at
the main interface, but when I got into the videos page,it went
wrong ,and the page says

DatabaseError at /admin/videopage/video/
no such column: videopage_video.title
Request Method: GET
Request URL: http://127.0.0.1:8000/admin/videopage/video/
Django Version: 1.4
Exception Type: DatabaseError
Exception Value:
no such column: videopage_video.title
Exception Location: C:\Python27\lib\site-packages\django\db\backends
\sqlite3\base.py in execute, line 337
Python Executable: C:\Python27\python.exe
Python Version: 2.7.2
Python Path:
['C:\\Python27\\mysite',
'C:\\WINDOWS\\system32\\python27.zip',
'C:\\Python27\\DLLs',
'C:\\Python27\\lib',
'C:\\Python27\\lib\\plat-win',
'C:\\Python27\\lib\\lib-tk',
'C:\\Python27',
'C:\\Python27\\lib\\site-packages',
'C:\\Python27\\lib\\site-packages\\wx-2.8-msw-unicode']
Server time: Sun, 10 Jun 2012 17:14:43 +0800

how to cope with that?

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