AFAIK, it has two origins: 1- To make editing text sql scripts easier, in terms of alignment between the predicates.
2- As a trick to enhance the WHERE clause in blocks in Forms, very old versions. Other than that never heard it made the slightest difference to the CBO. Cheers Nuno Souto [EMAIL PROTECTED] ----- Original Message ----- > > "the 1=1 is in there to avoid doing repetitive index scans for single > rowids, when the app "knows" the result set is going to be manipulated > rowid's for a large subset of the table. I would guess your DUAL/CBO example > had some similar effect." > > Is anyone familiar enough with this tweak to explain it ? > -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Nuno Souto 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).
