Hi !!! > Hi all > > I'm having a performance problem opening a recordset using a > CRecordset class (Visual C++). If the table is empty (or > contains few records) it takes a very little time to open, > but if the table contains many records (about 48000 in my > tests) it takes too much time (about 20 seconds) to open.
Its because of mysql_store_result(), instead you should check the option 'Don't cache results' to use 'mysql_use_result()'. > > The table is very simple: > > CREATE TABLE accounts ( > IDAccount int(11) NOT NULL auto_increment, > IDUser int(11) , > Date timestamp(14) , > Status varchar(50) , > IDItem int(11) , > Qty double , > Price double , > Visible int(11) , > PRIMARY KEY (IDAccount) > ) TYPE=MyISAM; > > Of course I tried to 'play' with DSN options and, as > suggested in MYODBC faq, I cheched off the options " Return > Matching Rows ", " Allow BIG Results " and " Enable Dynamic > Cursor " without results. I tried to set the check " Don't > Cache Results... " & " Force use of Forward-only Cursors " > and it seemed to work but in that case I had 2 problems: 1. I > cannot update/modify records 2. it takes the same long time > (about 20 seconds) to CLOSE the recordset Must have client side cursor in this case as driver can't simulate server side/scrollbale cursor on non-cached result sets. Regards, Venu -- For technical support contracts, go to https://order.mysql.com __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Mr. Venu <[EMAIL PROTECTED]> / /|_/ / // /\ \/ /_/ / /__ MySQL AB, Developer /_/ /_/\_, /___/\___\_\___/ Palo Alto, CA-94306 <___/ www.mysql.com USA --------------------------------------------------------------------- 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
