Dear gurus ! We are facing a severe performance problems here that i have no idea of how to address. There is a C++ program , which uses OCI , that does the following. It initiates a long running SQL select statement, and then fetches the result set from the DB in buffers of 5000 records. Now , the problem is that it takes significantly (exponentially) more time to fetch each subsequent result set. I.e. , it takes a second to bring the first 5000 records, it takes 2 seconds to bring the next 5000 rows , it takes 3 seconds to bring the third set of 5000 rows and ....it takes a hour to bring the 100th set of 5000 rows. My main question is : what actually happens within the DB engine when you execute a huge select and then fetch the results buffer-by-buffer ?
Thanks a lot !!! DBAndrey * 03-9254520 * 058-548133 * mailto:[EMAIL PROTECTED] -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Andrey Bronfin INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
