I don't think you can have a single mysql query do what you're wanting. Break it into mutiple queries.
> -----Original Message----- > Hi List, > > I have a qty posted via a form field, lets say 46. > > In my mysql table I have two rows which I want to reduce their qty fields. > > 1 row has a qty of say 13 and the second has a qty of 50, making 63 in > total. > > So I would like to say something like if $_POST[qty] is greater than row > 1's > qty then update row[qty] = 0, then minus what was the row qty, 13 , from > $_POST[qty] to new var say $newqty = $_POST[qty]-$row[qty], this leaves > 37. > > Then from the 2nd row take 37 from its qty of 50 leaving 13. End result > being row 1's qty field = 0 and row 2's qty field = 13. > > I hope this is not as clear as mud and if you need further clarity to be > able to advise me then I will be happy to correspond. > > I thank you fully in advance for any help, logic pointers or nuggets of > wisdom. > > Dave Carrera > > > -- > UK Web Hosting @ http://www.ephgroup.com > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.736 / Virus Database: 490 - Release Date: 09/08/2004 > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
