The easiest way to debug this is to install django_debug_toolbar and
look at the sql queries to see where the hold-up is.
As previously, restrict the number of fields returned using "values"
and/or use "select_related" or "prefetch_related" to get related data
in one or two queries, rather than having Django getting that data on
(potentially) multiple queries per record.
-- Clive
On 17 Jan 2023, at 07:43, Prashanth Patelc wrote:
I'm using orm query fetching all data and showing into html
templates , it's taking more time for get the data ,
On Tue, Jan 17, 2023, 12:40 PM Clive Bruton <cl...@indx.co.uk> wrote:
On 17 Jan 2023, at 05:01, Prashanth Patelc wrote:
> I written query it's taking more time like 38 seconds, how to to
> fetch the lac of records within seconds any example in django using
> orm or MySQL query ?
Are you saying that you have a raw SQL query, or you are using a
Django query?
My experience is that the biggest lag in database retrieval is the
amount of data retrieved, so if you can reduce the number of fields
returned, that would be a good start.
If you are using a Django query, and it has related elements, then
the biggest boost you can give is using "select_related" and
"prefetch_related".
-- Clive
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