Re: Date's First Great Blunder

From: D Guntermann <>
Date: Tue, 20 Apr 2004 21:36:08 GMT
Message-ID: <>

"Dawn M. Wolthuis" <> wrote in message news:c6382u$k4p$
> "Laconic2" <> wrote in message
> > I expect that, if you dig deep enough, you'll find that the terms
> > "hierarchical data model" and "network data model" predate the
> relational
> > data model.
> >
> > These are just two places to start the search.
> I've searched -- I haven't found them. My assessment is that there
> certainly could have been a person who uttered the words "hierarchical
> database" when talking about IMS prior to 1970, but so far I have not
> anything in writing referring to hierarchical or network database prior to
> Codd's 1970 ACM paper.

How about these?

Robert E. Bleier, Treating hierarchical data structures in the SDC Time-Shared Data Management System (TDMS), Proceedings of the 1967 22nd national conference, p.41-49, January 1967, Washington, D.C., United States

Information Management System/360, Application Description Manual H20-0524-1. IBM Corp., White Plains, N. Y., July 1968.

CODASYL, "Data Base Task Group Report," ACM, New York City, October 1969.

Henry, W.R. (1969). Hierarchical structure for data management. IBM Systems Journal 8:(1). p. 2 - . [Online]. Available at:

> --dawn


Dan Received on Tue Apr 20 2004 - 23:36:08 CEST

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