There has got to be a way to do this but I'm not finding anything. I would like the ability to refresh materialized view 'a' but ensure that all materialized views that 'a' depends on are refreshed first. I found dbms_mview.refresh_dependents but that starts with the base object and works it's way up the dependency chain. In my case, that will refresh more materialized views that i want. I would like to give the materialized view at the top of the dependency chain and then have everything underneath it refreshed prior to it being refreshed. anybody know how to do this? 10gR2. ....materialized views are written such that 'on commit' is not possible. thanks for any help! chris CONFIDENTIALITY NOTICE: This message is intended for the use of the individual or entity to which it is addressed and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by email reply.