[Answer]-Select * where we have the reference value exists multiple times

Use filter() instead of get(). get fetches only one result.

def rewardhistory(request):
    reward = Rewardpoints_log.objects.filter(userid='894490') 
    return render_to_response('credits.html', 'reward':reward},context_instance=RequestContext(request))

I’m guessing you’re not using any relationship between your models. I suggest you start doing that.