Thanks guys. The pyodbc option seems to be the best as i've discovered that QuerySet cannot also be random.shuffleD On Fri, Dec 23, 2011 at 11:09 PM, Python_Junkie < [email protected]> wrote:
> You can use the full functionality of sql and python by executing sql > queries using the pyodbc module. > > The module is documented at this url > http://code.google.com/p/pyodbc/ > > You can combine sql and python logic and not have to be constrained by > the abstraction of raw sql or the ORM. > in your django views > > Capture the data/transformation in python dictionaries to be rendered > in the template > > > On Dec 23, 4:48 pm, Sebastian Goll <[email protected]> wrote: > > On Fri, 23 Dec 2011 20:16:11 +0100 > > > > Babatunde Akinyanmi <[email protected]> wrote: > > > I actually have a database with thousands of records from which I have > > > to randomly select just 10 records from the thousands during every > > > query. Because of efficiency, I use the normal select with limit query > > > using a random number as offset and 200 as the limit. Next, the idea > > > is to shuffle the results and use the first 10 numbers. > > > > To randomly select 10 records from your model, you can also use > > > > Model.objects.order_by('?')[0:10] > > > > This translates loosely to something like this SQL statement: > > > > SELECT … FROM … ORDER BY RANDOM() LIMIT 10 > > > > Beware that this might be an expensive and/or slow query, depending on > your database backend. Unfortunately, I don't know how each database > backend compares. See: > > > > https://docs.djangoproject.com/en/1.3/ref/models/querysets/#order-by > > > > Regards, > > Sebastian. > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/django-users?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
