On Monday 20 January 2003 12:15 am, Zysman, Roiy wrote: > Hi All, > I'm trying to insert multiple lines to a table with 3 col. All 3 of them > are a part of the primary key. > But while inserting the data , sometime occurs the situation where I > want to insert an already exist entry with the same keys. And mysql > barfs out that this key already exist in the table. > The solution to it would be probably to query for each entry that I'm > about to insert if that entry exists , but it looks like it would be an > enormous overhead. I'm asking this question on a _performance_ context . > What is the best way , ignore the error messages mysql barfs out or > query each entry for existences before inserting it ?
Roiy: Try INSERT IGNORE... -- MySQL Development Team For technical support contracts, visit https://order.mysql.com/?ref=mspa __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Sasha Pachev <[EMAIL PROTECTED]> / /|_/ / // /\ \/ /_/ / /__ MySQL AB, http://www.mysql.com/ /_/ /_/\_, /___/\___\_\___/ Provo, Utah, USA <___/ MySQL Users Conference and Expo http://www.mysql.com/events/uc2003/ --------------------------------------------------------------------- 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
