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- Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
- Path: sparky!uunet!paladin.american.edu!auvm!SNYCENVM.BITNET!OGDENEB
- Organization: State University of New York - Central Administration
- Message-ID: <DBASE-L%92112306400832@NMSUVM1.BITNET>
- Newsgroups: bit.listserv.dbase-l
- Date: Mon, 23 Nov 1992 08:14:39 EST
- Sender: "Discussion on the use of the dBase language and related
- dialects" <DBASE-L@NMSUVM1.BITNET>
- From: EVERETT OGDEN <OGDENEB@SNYCENVM.BITNET>
- Subject: Re: RE- Indexing Problem
- In-Reply-To: Message of Fri, 20 Nov 1992 11:29:13 EST from <JLEWIS@INDYCMS>
- Lines: 18
-
- Jeff Lewis asked for a definition of Rushmore technology. Not an easy
- task. How about, "Rushmore is a technology that is sufficiently
- advanced to be indistinguishable from magic." And, like all good
- magicians, the folks at Fox (now Microsoft) aren't saying how they do
- it. But basically (and this is a great oversimplification) Rushmore
- examines the available indexes to see if they can help to speed
- execution of FoxPro commands. Most commands with FOR clauses in them
- (LIST FOR, LOCATE FOR, etc.) and filters (SET FILTER TO...) can benefit
- from Rushmore if suitable indexes exist. SQL SELECT (not to be confused
- with SELECTing a work area) goes a step further by sometimes creating
- the indexes it needs on the fly.
-
- Fox attempted to patent Rushmore. I don't know where that effort stands
- now, but if it's successful, then presumably the method could not be
- kept secret. It couldn't be incorporated into other products without
- Microsoft's permission, of course.
-
- Everett Ogden ogdeneb@snycenvm.bitnet
-