Re: select value within an interval

From: <Vladimir.Usov_at_gmail.com>
Date: 18 Apr 2006 11:53:56 -0700
Message-ID: <1145386436.122441.44550@z34g2000cwc.googlegroups.com>

I used histograms to let Oracle know the data distributions in the indexed columns.

Yes, CBO thinks it is less costly to do full scan. I know that data are mostly evenly distributed. How can I make Oracle choose Index Range Scan. I did not find any hints. I am not sure if tweaking of index_cost_adj parameter will help. It will make Oracle do Index FFS. The same huge number of consistent gets. The only index available is on low_range, high_range columns. Received on Tue Apr 18 2006 - 13:53:56 CDT