If the partition is not bulk loaded in a single shot, then a good way to deal with this is to clone partition stats ( dbms_stats.copy_table_stats in >=10.2.0.4 ) from another representative partition. See: http://optimizermagic.blogspot.com/2009/02/maintaining-statistics-on-large.html http://download-west.oracle.com/docs/cd/B28359_01/appdev.111/b28419/d_stats.htm#BABDDBGH On Thu, Nov 19, 2009 at 7:11 AM, Mark W. Farnham <mwf@xxxxxxxx> wrote: > One more thing, my earlier response was more about adding a new "empty" > partition to be filled up in an OLTP or batch transaction context, and in > the context of the thread being about datawarehouses, you should follow the > "scaling to infinity" approach of swapping the partition in after you have > already filled it. See Tim Gorman's paper on the topic and you'll likely > make all the right choices. -- Regards, Greg Rahn http://structureddata.org -- //www.freelists.org/webpage/oracle-l