SELECT c.customerID,CONCAT(...) ,COUNT(i.customerID) as Num FROM customers c,invoice i WHERE c.customerID = i.customerID GROUP BY c.customerID ORDER BY Num DESC LIMIT 0,10 ;
Sorry, solved my own difficulty. On Tue, 20 Aug 2002, Quinten Steenhuis wrote: > Date: Tue, 20 Aug 2002 13:01:17 -0400 (EDT) > From: Quinten Steenhuis <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > Subject: ordering by frequency > > > I have a simple query that I must have framed incorrectly, because MySQL > returns an error: > > SELECT c.customerID,CONCAT(...) as Cust FROM customers c,invoice i WHERE > c.customerID = i.customerID ORDER BY COUNT(i.customerID) LIMIT 0,10; > > This tells me ERROR 1111: Invalid use of group function > > How can I get the ordering that I want? My goal is to select my ten most > frequent customers. I tried adding the COUNT() clause into the column > list, but then MySQL wanted a GROUP BY clause. When I added a group by > clause, I couldn't keep the ORDER BY clause... > Can anyone help? > > Thanks, this is much appreciated, since I know I have a pretty simple > problem. > > Quinten > > > --------------------------------------------------------------------- > Before posting, please check: > http://www.mysql.com/manual.php (the manual) > http://lists.mysql.com/ (the list archive) > > To request this thread, e-mail <[EMAIL PROTECTED]> > To unsubscribe, e-mail ><[EMAIL PROTECTED]> > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php > > > --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
