According to my Perf Tuning instructor from 08/2000, the "index efficiency" table looked like this:
Oracle Version v5 v6 v7 v8.0 v8.1.6 Rows Returned 20% 15% 8% 4% 9.9% Rich Rich Jesse System/Database Administrator [EMAIL PROTECTED] Quad/Tech International, Sussex, WI USA > -----Original Message----- > From: Rachel Carmichael [mailto:wisernet100@;yahoo.com] > Sent: Tuesday, November 12, 2002 6:48 PM > To: Multiple recipients of list ORACLE-L > Subject: RE: Is nothing sacred? (Oracle vs The Experts) > > > last time I checked with an Oracle University instructor who > I trust as > knowledgeable, it was FTS if more than 5-8% of rows expected to be > returned. This was 2000. These days, who knows? > > I don't go by the rules much anymore but by perception of performance > and by explain plan analysis. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jesse, Rich INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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).