Path: utzoo!mnetor!tmsoft!torsqnt!lethe!yunexus!ists!helios.physics.utoronto.ca!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!sdd.hp.com!elroy.jpl.nasa.gov!decwrl!fernwood!oracle!news From: jklein@.com (Jonathan Klein) Newsgroups: comp.databases Subject: Re: how bad is oracle? Message-ID: <1991Feb7.064930.12572@oracle.com> Date: 7 Feb 91 06:49:30 GMT References: <10737@pasteur.Berkeley.EDU> <1991Feb3.182558.14411@oracle.com> <9292@cognos.UUCP> Reply-To: jklein@oracle.UUCP (Jonathan Klein) Organization: Oracle Corporation, Belmont, CA Lines: 32 In article <9292@cognos.UUCP> nigelc@cognos.UUCP (Nigel Campbell) writes: >In article <1991Feb3.182558.14411@oracle.com> jklein@oracle.UUCP (Jonathan Klein) writes: >>In article <10737@pasteur.Berkeley.EDU> mao@eden.Berkeley.EDU (Mike Olson) writes: >>>a couple of days ago i posted a query about oracle to this newsgroup. >>>since i got no response, i thought i would repost with a more provocative >>>subject line. >>> >>>here's the question: i have heard that oracle does not have a query >>>optimizer. i find this surprising. is it true? >>> > >[stuff deleted] > >>All versions of oracle that I have worked with have had an query optimizer. >> >>Jonathan Klein > >Would you like to give a comparison on the merits of the Oracle approach >vs say Rdb/Vms,Interbase,Sybase etc especially based on a database where >the user has not taken to using physical row,table placement schemes . > > Query optimization is not my area of development; I was just posting a response to correct some misinformation about whether oracle does perform any optimization processing. > > >-- >Nigel Campbell Voice: (613) 783-6828 P.O. Box 9707 >Cognos Incorporated FAX: (613) 738-0002 3755 Riverside Dr. >uucp: nigelc@cognos.uucp || uunet!mitel!cunews!cognos!nigelc Ottawa, Ontario >|| nigelc@cognos.uucp.@ccs.carleton.ca CANADA K1G 3Z4