Sorry, but I've omitted part of the where clause to make the message shorter and now I see that it was important. Here goes the select again:
SELECT A.cod_call, A.cod_link, A.nr_call , A.status, B.dthr_occurrence as open, DATE_SUB(C.dthr_occurence, INTERVAL B.dthr_occurrence HOUR_MINUTE) AS during, DATE_SUB(D.dthr_occurrence, INTERVAL B.dthr_occurrence HOUR_MINUTE) AS late FROM CALL A, OCCURRENCE B, OCCURRENCE C, OCCURRENCE D WHERE A.COD_CALL = B.COD_CALL AND A.COD_CALL = C.COD_CALL AND A.COD_CALL = D.COD_CALL AND A.COD_LINK = '$lnk' AND B.DESC_OCCURRENCE = 'open' AND C.DESC_OCCURRENCE = 'close' AND D.DESC_OCCURRENCE = 'stop' AND (B.DTHR_OCCURRENCE BETWEEN '$datef' AND '$datet') ----- Original Message ----- From: "Keith C. Ivey" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: "Felipe D. Ramalho" <[EMAIL PROTECTED]> Sent: Wednesday, November 20, 2002 3:09 PM Subject: Re: datetime arithmetic > On 20 Nov 2002, at 14:40, Felipe D. Ramalho wrote: > > > SELECT ..., B.dthr_occurrence as open, > > DATE_SUB(C.dthr_occurrence, INTERVAL B.dthr_occurrence > > HOUR_MINUTE) AS during, > > DATE_SUB(D.dthr_occurrence, INTERVAL B.dthr_occurrence > > HOUR_MINUTE) AS late > > > > FROM CALL A, OCCURRENCE B, OCCURRENCE C, OCCURRENCE D > > The DATE_SUBs in your query make no sense. You're treating the same > column as both a date and an "HH:MM" string representing a duration > in hours and minutes. It can't be both. > > -- > Keith C. Ivey <[EMAIL PROTECTED]> > Tobacco Documents Online > http://tobaccodocuments.org > Phone 202-667-6653 > > --------------------------------------------------------------------- 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