<<It is using the index. Range scans are not "smart" so to speak. In Harrison's sql tuning book, he states that a range scan is not intelligent.>>
Well, depends on the type of range scan. There are two kinds, bonded and unbounded. Bounded is indeed intelligent and starts and stops at specific points. This kind of range scan you will find, for example, when the WHEN clause contains something like: where range_id > 100 and range_id < 300 An unbounded range scan, starts at a specific place in the index and reads basically the remainder of the index. A bounded range scan is caused by such actions like Where range_id > 100 RF Robert G. Freeman - Oracle8i OCP Oracle DBA Technical Lead CSX Midtier Database Administration The Cigarette Smoking Man: Anyone who can appease a man's conscience can take his freedom away from him. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Freeman, Robert INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
