Oracle Perf Tuning by O'Reilly mentions it, but without explanation: http://www.oreilly.com/catalog/oracle2/chapter/ch10.html
There's more, too. Try searching for "dual performance iterative OR loop oracle" on google.com HTH! :) Rich Jesse System/Database Administrator [EMAIL PROTECTED] Quad/Tech International, Sussex, WI USA -----Original Message----- Sent: Thursday, May 30, 2002 11:23 AM To: Multiple recipients of list ORACLE-L The developers here have a fondness for using DUAL for simple operations (select count(*) from dual is executed 10000+ times per day). I recall a passing comment somewhere/sometime that there are performance issues with accessing DUAL. Of course, now that I need to provide some information to the developers, I can't recall the comment or find documentation. Any assistance is greatly appreciated. Daniel W. Fink -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jesse, Rich 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).
