Hopefully I'm understanding your question completely, but yes, with the partition maintenance, if you are exchanging partitions, then you do need to update the indexes as well or they will become unusable... Are you looking if you need validation or not or if you need to rebuild them? That's what I can't tell if you are questioning... Kellyn Pedersen Multi-Platform DBA I-Behavior Inc. http://www.linkedin.com/in/kellynpedersen "Go away before I replace you with a very small and efficient shell script..." --- On Fri, 10/30/09, Sanjay Mishra <smishra_97@xxxxxxxxx> wrote: From: Sanjay Mishra <smishra_97@xxxxxxxxx> Subject: Global Index on Partition Table To: oracle-l@xxxxxxxxxxxxx Date: Friday, October 30, 2009, 10:04 AM Hi I had 2 Tb table with Quarterly Partition and has 5 Global index. When we are doing quarterly maintenance and exchanging the partition we are using the Clause WITHOUT VALIDATION UPDATE GLOBAL INDEXES As two of them are Unique index and so I think VALIDATION is anyway done. Question is that how it impact the Indexes ? Do I really need to Rebuild the index in the future or it is fine. Actually Earlier partition maintenance are not done with above clause leaving Index in Unusable state but adding the above will avoid this and save downtime which is big due to several big indexes as well as DB in LOGGING mode due to Standby database. TIA Sanjay