RE: [PHP] Can I select only the newest record?
| From: | PHPBeginner.com | Date: | Sat, 17 Feb 2001 11:12:21 +0000 |
| Subject: | RE: [PHP] Can I select only the newest record? | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-40315@lists.php.net to get a copy of this message | ||
I wonder, if LAST_INSERT_ID will work in here...
I know it works when on the same file was an insertion.. but will it return
you the last ever inserted id, say a week ago?
I feel like it won't, but don't know for sure... try it...
Sincerely,
Maxim Maletsky
Founder, Chief Developer
PHPBeginner.com (Where PHP Begins)
maxim@phpbeginner.com
www.phpbeginner.com
-----Original Message-----
From: ..s.c.o.t.t.. [mailto:scott@furt.com]
Sent: Saturday, February 17, 2001 4:59 PM
To: Php-General
Subject: RE: [PHP] Can I select only the newest record?
there are two ways that come to mind of doing this if you're
using some kind of auto-incrementing field (not necessarily
AUTO_INCREMENT, but any field that increases [or decreases]
with time)
this will select the entire row, but limit the query to only
return 1 result (and depending on how your order, this
result could be the highest/lowest value of the field):
(to get highest value of field id)
SELECT * FROM mytable ORDER BY id ASC LIMIT 1;
(to get lowest value of field id)
SELECT * FROM mytable ORDER BY id DESC LIMIT 1;
PS: there's probably a more efficient way to do it,
but this is what came to mind at the moment...
> -----Original Message-----
> From: Brian Drexler [mailto:bdrexler@mail.precisionwd.com]
> Sent: Friday, February 16, 2001 20:22
> To: Php-General
> Subject: [PHP] Can I select only the newest record?
>
>
> Using PHP3/MySQL, is there a way I can select only the newest record from
a
> MySQL table. I have a datetime field and an Auto_incremented field.
Anyone
> got any ideas???
>
> Brian Drexler
>
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