Brian Dunning wrote:
On Jun 3, 2005, at 6:48 AM, Marek Kilimajer wrote:
Brian Dunning wrote:
I am using a routine to find 50 random records in a large MySQL
database (about a million records) where I generate a list of 50
random unique ID's,
why can't you use the where condition in the above query?
Because I wouldn't get all 50 records that I need - I'd only get the
few out of the 50 that happened to be in the needed subset.
I don't think you get me or I don't get you. Currently you are doing:
1. select id from table order by rand() limit 50
2. select * from table where id in($random_set)
right?
I meant why not use the where condition in the first query.
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
