[PHP-DB] Random Selecting from mySQL
I know how to use the ORDER BY rand() command on the end of queries to randomize selection, but that's no good when you want to only display 10 results per page. The next page the user chooses, randomizes again and could show duplicate fields and not at all show other fields. Does anyone know a way round this? -- Regards, Georgie Casey [EMAIL PROTECTED] *** http://www.filmfind.tv Ireland's Online Film Production Directory *** -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DB] Random Selecting from mySQL
are you just looking for a way to display 10 results per page? If yes then you can just use LIMIT to limit your result to 10 .. So, for the first page, you can do SELECT LIMIT 1, 10; and for the second page SELECT ... LIMIT 11, 20 etc etc . You can sure use ORDER BY with LIMIT to to sort the results for a given criteria .. Gurhan -Original Message- From: Georgie Casey [mailto:[EMAIL PROTECTED]] Sent: Wednesday, March 13, 2002 2:00 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: [PHP-DB] Random Selecting from mySQL I know how to use the ORDER BY rand() command on the end of queries to randomize selection, but that's no good when you want to only display 10 results per page. The next page the user chooses, randomizes again and could show duplicate fields and not at all show other fields. Does anyone know a way round this? -- Regards, Georgie Casey [EMAIL PROTECTED] *** http://www.filmfind.tv Ireland's Online Film Production Directory *** -- 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
Re: [PHP-DB] Random Selecting from mySQL
yea, i know how to display 10 results per page, but that doesnt work when you want to do a ORDER BY rand() query. Gurhan Ozen [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... are you just looking for a way to display 10 results per page? If yes then you can just use LIMIT to limit your result to 10 .. So, for the first page, you can do SELECT LIMIT 1, 10; and for the second page SELECT ... LIMIT 11, 20 etc etc . You can sure use ORDER BY with LIMIT to to sort the results for a given criteria .. Gurhan -Original Message- From: Georgie Casey [mailto:[EMAIL PROTECTED]] Sent: Wednesday, March 13, 2002 2:00 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: [PHP-DB] Random Selecting from mySQL I know how to use the ORDER BY rand() command on the end of queries to randomize selection, but that's no good when you want to only display 10 results per page. The next page the user chooses, randomizes again and could show duplicate fields and not at all show other fields. Does anyone know a way round this? -- Regards, Georgie Casey [EMAIL PROTECTED] *** http://www.filmfind.tv Ireland's Online Film Production Directory *** -- 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
RE: [PHP-DB] Random Selecting from mySQL
could you perhaps do the select on the first page, then store the results in a session (array) and just load different indexed portions of the resultset each page? only problem there is that you wouldn't get any refreshed results while browsing those pages - but i don't know if this matters for you or not. HTH Beau // -Original Message- // From: Georgie Casey [mailto:[EMAIL PROTECTED]] // Sent: Thursday, 14 March 2002 3:00 AM // To: [EMAIL PROTECTED]; [EMAIL PROTECTED] // Subject: [PHP-DB] Random Selecting from mySQL // // // I know how to use the ORDER BY rand() command on the end // of queries to // randomize selection, but that's no good when you want to // only display 10 // results per page. The next page the user chooses, randomizes // again and could // show duplicate fields and not at all show other fields. // // Does anyone know a way round this? // // -- // Regards, // Georgie Casey // [EMAIL PROTECTED] // // *** // http://www.filmfind.tv // Ireland's Online Film Production Directory // *** // // // // -- // 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
RE: [PHP-DB] Random Selecting from mySQL
Pass along a hidden form which documents exactly what rows have already
been shown
input type=hidden name=seen value=1:4:3:9:10:5:27
then you could use
$seen=explode(':', $seen); to break it into an array...
after that use a foreach to add a 'and id != '.$seen into the sql query
for every element in $seen... thus not allowing duplicates on a per
visit basis...
-Original Message-
From: Georgie Casey [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 13, 2002 4:11 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: [PHP-DB] Random Selecting from mySQL
yea, i know how to display 10 results per page, but that doesnt work
when
you want to do a ORDER BY rand() query.
Gurhan Ozen [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
are you just looking for a way to display 10 results per page? If yes
then
you can just use LIMIT to limit your result to 10 .. So, for the first
page,
you can do SELECT LIMIT 1, 10; and for the second page SELECT
...
LIMIT 11, 20 etc etc .
You can sure use ORDER BY with LIMIT to to sort the results for
a
given criteria ..
Gurhan
-Original Message-
From: Georgie Casey [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 13, 2002 2:00 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: [PHP-DB] Random Selecting from mySQL
I know how to use the ORDER BY rand() command on the end of queries
to
randomize selection, but that's no good when you want to only display
10
results per page. The next page the user chooses, randomizes again and
could
show duplicate fields and not at all show other fields.
Does anyone know a way round this?
--
Regards,
Georgie Casey
[EMAIL PROTECTED]
***
http://www.filmfind.tv
Ireland's Online Film Production Directory
***
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