Hi, I've a cursor which retrieves about 3 lakh recs from a table.(master) based on column value retrieved from cursor for each rec,there are other tables (detail) to be updated. The detail tables have large volumes of data. the question is how can the performance be improved to achieve the desired result. Regards Manoj This e-Mail may contain proprietary and confidential information and is sent for the intended recipient(s) only. If by an addressing or transmission error this mail has been misdirected to you, you are requested to delete this mail immediately. You are also hereby notified that any use, any form of reproduction, dissemination, copying, disclosure, modification, distribution and/or publication of this e-mail message, contents or its attachment other than by its intended recipient/s is strictly prohibited. Visit Us at http://www.polaris.co.in -- //www.freelists.org/webpage/oracle-l