select .... LIMIT 50; mathias
Selon Brian Dunning <[EMAIL PROTECTED]>: > 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, and then use MySQL's "in" command to find them. I > can't use "order by rand()" due to its performance hit. > > But I have to take it one more step: I want to first limit my found > set to those matching a different search criteria, and then find 50 > of those. > > Anyone? Can this be done all within MySQL, or is it going to require > some humongo PHP arrays? > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] > > -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
