Re: code help!
| From: | Web Master | Date: | Tue, 05 Sep 2000 15:36:26 +0000 |
| Subject: | Re: code help! | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-15323@lists.php.net to get a copy of this message | ||
select sum(sales) from table group by zipcode
Michael Roark wrote:
> On Tue, 5 Sep 2000, Cobra Commander wrote:
>
> > I assume this is a DB.
> >
> > Select * from TABLENAME where ZIPCODE = 'ZIPCODE'
> > Then you can run a loop and do the sum OR (my MYSQL is limited):
> >
> > there maybe something like:
> >
> > Select sum(sales) as SALESSUM from TABLENAME where ZIPCODE = 'ZIPCODE'
> >
> > something to that effect will give you a single field with the sum oyu are
> > looking for.
>
> ya the info is in a database. How do I know when all the zipcodes have
> been sum'd? I mean if I loop through how does it know when its exausted
> all the zipcodes?
>
> Additionally the above select (with the sum() function) works, however it
> takes a second to execute on a zipcode which only had about 100 entries
> (developement database server is small p166),
> I've got some which have 900 to 1000 entries would it be more efficent to
> do the summing in the php code rather than having the database do it?
>
> > > Here's what I need to do:
> > >
> > > I've got a demographic, one field is a zip code field and there can be
> > > many entries for the same zipcode. I want to select all the info for like
> > > zipcodes and then sum the totals (say sales field) for each zip code and
> > > then list the top 5 zip codes.
> > >
> > > If someone could help me out with this one it would be much appriciated.
> > >
> > > Thanks,
> > >
> > > Michael
> > >
> > >
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