Jonathan, Thanks for your information. I'm using 9.2.0.4 E on RHEL3U1, which I didn't remember with my post. I was hoping for some information (just like you provided) to get me going in the right direction. --- Jonathan Lewis <jonathan@xxxxxxxxxxxxxxxxxx> wrote: > > What do you mean by 'working' ? During a small test, the tables I created and performed DML and SELECT's did not have any values in col_usage$. I was confused, and I did not found much information on col_usage$ to assist my understanding of pertinent and related features. I will verify MONITORING, AUTO, etc., settings and try again. By 'working' I'm saying basically 'in control' of what I expect to see in my tests. Otherwise, 'not working' is when I'm lost, regardless of results. ;-) Just wanted to say a quick thanks. Regards, Mike Thomas __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------