RE: [PHP] Can I select only the newest record?

From: Date: Sun, 18 Feb 2001 13:37:59 +0000
Subject: RE: [PHP] Can I select only the newest record?
References: 1  Groups: php.general 
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yes, that will work... however, if you're trying to select from a table that lacks an explicit AUTO_INSERT field, yet has an incrementing field (DATETIME is one that comes to mind), selecting the LAST_INSERT_ID wouldnt work... > -----Original Message----- > From: PHPBeginner.com [mailto:php-general@phpbeginner.com] > Sent: Saturday, February 17, 2001 03:12 > To: ..s.c.o.t.t..; Php-General > Subject: RE: [PHP] Can I select only the newest record? > > > 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 > > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net >

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