#39228 [Bgs->Opn]: PDO: implement randomRow method

From: Date: Sun, 22 Oct 2006 15:00:12 +0000
Subject: #39228 [Bgs->Opn]: PDO: implement randomRow method
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-103877@lists.php.net to get a copy of this message
 ID:               39228
 User updated by:  selecter at gmail dot com
 Reported By:      selecter at gmail dot com
-Status:           Bogus
+Status:           Open
 Bug Type:         Feature/Change Request
 Operating System: *
 PHP Version:      *
 New Comment:

It's a feature request for PDO, not a question about how to implement.


Previous Comments:
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[2006-10-22 14:57:22] helly@php.net

Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system
is not the
appropriate forum for asking support questions.  Due to the volume
of reports we can not explain in detail here why your report is not
a bug.  The support channels will be able to provide an explanation
for you.

Thank you for your interest in PHP.

You can do that in PHP. However there is no way a random order can be
fast. Nothing PHP, the RDBMS or any other software can do here. I guess
the best option is to use a shuffle algorithm  on top of the query
result.

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[2006-10-22 14:51:35] selecter at gmail dot com

Description:
------------
We need a unified method which will get a random row from a table.

Please note that at least in MySQL:
SELECT * FROM tablename ORDER BY rand();
is too slow on big tables.



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