That would just give me 1994 for all 3 columns of output. What I want to know is how many calls were longer than 5 seconds, how many were <= 5 seconds, and the total number of calls.
Cheers, Rich > -----Original Message----- > From: Gelu Gogancea [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, September 17, 2002 12:08 PM > To: Richard Unger; [EMAIL PROTECTED] > Subject: Re: aggregate functions producing bad data > > > Hi, > I think you should try to use 0 instead of NULL > > Regards, > > Gelu > _____________________________________________________ > G.NET SOFTWARE COMPANY > > Permanent e-mail address : [EMAIL PROTECTED] > [EMAIL PROTECTED] > ----- Original Message ----- > From: "Richard Unger" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Tuesday, September 17, 2002 9:59 PM > Subject: aggregate functions producing bad data > > > My query: > > SELECT > count(id), > count( IF(call_end - call_start > 5, id, NULL) ), > count( IF(call_end - call_start <= 5, id, NULL) ) > FROM > t_calllog_calls; > > My result: > > 1994 > 1956 > 35 > > However, 1956 + 35 != 1994. > > Running MySQL 3.23.49-nt > > Cheers, > Rich > > --------------------------------------------------------------------- > 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
