Ashish, Mark and off-list responders, Thanks!
Ashish, is there a really good general reason not to store a computed value? Searches will be done on this column. Searches like 'Please send me the rows with the ten highest values of C.' > Do you have a really good reason to store a computed value? It's only > useful > if you will perform a search on the column, else you could just do the > subtraction when you SELECT columns A and B. > > - Ashish > > On Sat, Aug 21, 2010 at 11:55 AM, <b...@qxhp.com> wrote: > >> Hello, >> >> For simplicity's sake, let's say I have three fields, A, B and C, all >> of which are integers. I'd like the value of C to be equal to A less B >> (A-B). Is there a way I can perform this calculation? I'm guessing it >> would happen when I INSERT a row and specify the values for A and B. >> Feel free to direct me to the fine manual I should have read. >> >> Thank you. >> >> >> -- >> MySQL General Mailing List >> For list archives: http://lists.mysql.com/mysql >> To unsubscribe: >> http://lists.mysql.com/mysql?unsub=ashish.mukher...@gmail.com >> >> > -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=arch...@jab.org
