RE: [PHP-DB] FW: db design - which is better
| From: | mayo | Date: | Sat, 07 Feb 2004 23:10:17 +0000 |
| Subject: | RE: [PHP-DB] FW: db design - which is better | ||
| References: | 1 | Groups: | php.db |
| Request: | Send a blank email to php-db+get-32848@lists.php.net to get a copy of this message | ||
Let's say you have a page that is hit fairly frequently and spits out 100s
of results.
On it you have articleTitle, authorFName, authorLName.
I ran a few tests and found that if all the above fields are in one table it
gets processed quicker than if there's a join. (authorID -> authorFName,
authorLName)
So, I'm beginning to think that processing time would be quicker if I insert
authorFName and authorLName into 2 tables. One the author table and the
other the *VERY* frequently hit article table.
That way when someone wants a list of articles, author FName, author LName
all the data comes from one table.
This would be probably very stupid in a financial or medical database which
has tens of millions of records and 100s if not 1000s of tables but SEEMS
(I'm very open to being corrected) to work better on a fairly small web
accessed database.
yours,
Gil
> -----Original Message-----
> From: Ignatius Reilly [mailto:ignatius.reilly@free.fr]
> Sent: Saturday, February 07, 2004 6:01 PM
> To: mayo; php-db
> Subject: Re: [PHP-DB] FW: db design - which is better
>
>
> There are perhaps such times, but I have yet to meet one.
>
> with 1NF:
> - your table space will be smaller
> - your indexes will work better
> - your SQL will be easier to write
> - ease of maintenance
>
> Just my 2 Belgian francs
>
> Ignatius
> _________________________
> ----- Original Message -----
> From: "mayo" <mayo@nycinteractive.com>
> To: "php-db" <php-db@lists.php.net>
> Sent: Saturday, February 07, 2004 23:45
> Subject: RE: [PHP-DB] FW: db design - which is better
>
>
> >
> > Thanks,
> >
> > There just seems to be times when non-normalized table structures are
> easier
> > to work with. A few hundred to a few thousand records, maybe 20 fields,
> > rarely adding another field.
> >
> > I wonder sometimes whether it make sense to put everything in one table
> > instead of using joins.
> >
> > yours, putting-his-foot-in-his-mouth,
> >
> > Gil
> >
> >
> > > -----Original Message-----
> > > From: Ignatius Reilly [mailto:ignatius.reilly@free.fr]
> > > Sent: Saturday, February 07, 2004 5:33 PM
> > > To: mayo; php-db
> > > Subject: Re: [PHP-DB] FW: db design - which is better
> > >
> > >
> > > Use the second design. SQL 101 / 1st normal form.
> > > _________________________
> > > ----- Original Message -----
> > > From: "mayo" <mayo@nycinteractive.com>
> > > To: "php-db" <php-db@lists.php.net>
> > > Sent: Saturday, February 07, 2004 23:19
> > > Subject: [PHP-DB] FW: db design - which is better
> > >
> > >
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: Gilbert Midonnet [mailto:glm@glmdesigns.com]
> > > > Sent: Saturday, February 07, 2004 5:09 PM
> > > > To: php-db
> > > > Subject: db design - which is better
> > > >
> > > >
> > > > I have a client who has hundreds of articles. Each article can
> > > be seen by
> > > > one or more permission groups.
> > > >
> > > > I have questions regarding setting up the an
> article_display table.
> > > >
> > > > The easiest table to read and to conceptualize would list the
> > > articles and
> > > > use a boolean for each of the permission groups (let's
> call the PGs
> for
> > > this
> > > > example).
> > > >
> > > > (articleNameID refers back to the article table)
> > > >
> > > > articleNameID---PG1---PG2---PG3---PG4---PG5
> > > > 1001-------------1-----0-----0-----0-----0
> > > > 1002-------------1-----1-----0-----0-----0
> > > > 1003-------------0-----0-----1-----0-----0
> > > >
> > > >
> > > > Or should the table set up be:
> > > >
> > > > articleNameID--PG
> > > > 1001------------1
> > > > 1002------------1
> > > > 1002------------2
> > > > 1003------------3
> > > >
> > > > etc...
> > > >
> > > > gil
> > > >
> > > > --
> > > > PHP Database Mailing List (http://www.php.net/)
> > > > To unsubscribe, visit:
> > > > http://www.php.net/unsub.php
> > > >
> > > >
> > >
> > > --
> > > PHP Database Mailing List (http://www.php.net/)
> > > To unsubscribe, visit: http://www.php.net/unsub.php
> > >
> >
> > --
> > PHP Database Mailing List (http://www.php.net/)
> > To unsubscribe, visit: http://www.php.net/unsub.php
> >
> >
>
> --
> PHP Database Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>