Talk:Edgar F. Codd

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This article has been mentioned by a media organization: Gavin Clarke (19 August 2013). "12 simple rules: How Ted Codd transformed the humble database". The Register.

IBM did NOT ignore Codd's work until the "successes" of Larry Ellison. IBM was deeply involved in relational database research and the development of SQL in the early 1970s, before Ellison even got started. Even the unskeptical do not contend that Oracle delivered commercial product prior to late 1979, and other commercial relational products were well on the way in that time frame. Oracle's early product saw little success until the mid 1980s with products like Ingres having the early lion's share of the market. If anything, it was Ellison who ignored Codd's work -- the early Oracle product was far from meeting the principles of the relational model. Oracle did not achieve market dominance until much later and by that time IBM had established two relational products SQL/DS and DB2 in the market.

David McGoveran

F stands for Frank —Preceding unsigned comment added by 121.217.255.142 (talk) 10:18, 17 August 2008 (UTC)[reply]

ill be brief. Ibm was very much committed to todds work with many product groups involved. They wanted to release a product that was both robust, and could fit into a much larger context than oracles niche product. Oracle just released first, and has been extremely agressive in marketing pricing and aquisitions. For more than a few years, oracle was thought to be in serious trouble, against both INGRESS and IBMs SQL aind DB2. Consider that despite oracles dominance DB2 is still widely used. --22:47, 26 August 2011 (UTC) — Preceding unsigned comment added by 107.37.217.154 (talk)

Did Dr. Codd get his PhD in Computer Science as it says here in this article? I thought it was in Communication Sciences? See Edgar F. Codd: A Tribute and Personal Memoir from ACM SIGMOD. 69.224.58.213 (talk) 08:48, 27 June 2009 (UTC)Steven[reply]

[1] says: "From 1961 to 1965 Codd was on leave from IBM while he undertook Ph.D. studies at the University of Michigan. Codd's Ph.D. was in communication sciences and his thesis was on self-reproducing computers consisting of a large number of simple identical cells, each of which could interact in a uniform manner with its four immediate neighbors. Academic Press eventually published this work in 1968 as Cellular Automata." Ferkel (talk) 23:09, 18 April 2011 (UTC)[reply]

What does the "F" stand for in Edward F. Codd? - 203.134.166.99 07:42, 20 July 2005 (UTC)[reply]

Frank

Don't know. But his name wasn't Edward ;-) Mhkay 13:26, 16 August 2007 (UTC)[reply]

The statement "Then IBM included in its Future System project a System R subproject" is not correct or at least misleading". System R was a Research project and preceded Future System. Future System was a later Development project. I know. I was part of System R. See "A History and Evaluation of System R" at www.cs.berkeley.edu/~brewer/cs262/SystemR.pdf or the System R website at www.mcjones.org/System_R . James W. (Jim) Mehl

Also misleading: "but put in charge of it developers who were not thoroughly familiar with Codd's ideas, and isolated the team from Codd". The System R project was in San Jose, where Ted was, and researchers were relocated from IBM Yorktown to IBM San Jose to be on the project. In particular, Don Chamberlin and Ray Boyce, who invented SEQUEL/SQL, were quite aware of Ted's work. Read this oral history of Don for his interactions with Ted: http://archive.computerhistory.org/resources/access/text/Oral_History/102702111.05.01.acc.pdf . Paul McJones, who, like Jim Mehl, was part of System R. — Preceding unsigned comment added by Pmcjones (talk • contribs) 18:43, 18 April 2011 (UTC)[reply]

Because I stumbled over this and the succeeding sentence, I try to reword it and by the way remove the mentioned inaccuracies, as long as those aren't sourced correctly. But all things considered, an unsigned comment on the talk page wouldn't count as source either. 91.66.90.117 (talk) 22:38, 14 January 2017 (UTC)[reply]

Codd was British and he was a computer scientist, but can he really be described as a "British Computer Scientist" when all his professional career as a computer scientist was spent in the United States? Mhkay 13:25, 16 August 2007 (UTC)[reply]

Codd was very proud of being British. When I had lunch with him in the early 80s he described flying Spitfires for the RAF. He was small of stature but had a warm personality and a generous spirit. Above all he was a mathematician. He was very focused on the mathematical rigor of relational theory. Date was a bit more practically oriented. Saltysailor (talk) 14:10, 12 June 2008 (UTC)[reply]

This article was automatically assessed because at least one WikiProject had rated the article as start, and the rating on other projects was brought up to start class. BetacommandBot 14:58, 9 November 2007 (UTC)[reply]

Can someone shed some light on why Codd wasn't an ACM fellow a dozen years after he got his Turing Award. Both recognition are from the same organization, and the former is supposed to be many times more selective than the latter, no? Jim —Preceding unsigned comment added by 148.87.1.170 (talk) 17:58, 27 February 2008 (UTC)[reply]

The reason is that the first ACM Fellow awards were given in 1994, and included Codd. Paul McJones — Preceding unsigned comment added by Pmcjones (talk • contribs) 18:38, 18 April 2011 (UTC)[reply]

Codd was an IBM Fellow according to this: http://www.research.ibm.com/resources/news/20030423_edgarpassaway.shtml However, he is listed in the Wikipedia "IBM employee" category. Contrast with Benoit Mandelbrot, who is not listed in the employee category, but rather the fellow category. I assume this is an oversight, but perhaps there is some rationale? Dolphin Cheese (talk) 21:10, 3 March 2008 (UTC) Palavra Hepsi —Preceding unsigned comment added by 85.105.191.122 (talk) 09:43, 23 June 2008 (UTC)[reply]

The un-cited anecdote about "a little know fact as to how Codd came up with the term 'normalization' "[2] is highly dubious. "Normalization" is a common, ordinary mathematical term for this type of operation, one that would have been quite familiar to him. The entire paragraph smells prankish. ~ Ningauble (talk) 13:41, 17 September 2009 (UTC)[reply]

I totally agree, I'm removing it. Asymmetric (talk) 20:17, 22 September 2009 (UTC)[reply]

I distinctly remember sitting outside a railway station reading an interview of Codd in DBMS magazine, published in 1994, where he said if Nixon could normalize relations (with China), so could he. He also mused that he could have been rich if he'd patented the relational model. — Preceding unsigned comment added by 199.119.235.145 (talk) 13:54, 7 May 2015 (UTC)[reply]

--Geneandeddie59 (talk) 18:09, 22 June 2012 (UTC)== Relational Operators ==[reply]

Starting in 1967, Luther J. Woodrum implemented a searchable patent database at IBM using the APL language. The database was arranged similar to a large No-SQL table with classes and sub-classes associated with the patent number. The classes and sub-classes represented the different searchable fields (columns), eg Inventor, Assignee, Filing Date, Claims, etc for any patent. The database held several million world-wide patents that were relevant to IBM's business interests. The API also had a Boolean based query capability which Luther described as n-tuple relational operators. Luther presented this as an example of a "database" system in 1970 at his Poughkeepsie IBM Education Center class. Ted Codd was a student in this class. — Preceding unsigned comment added by Geneandeddie59 (talk • contribs) 16:36, 22 June 2012 (UTC)[reply]

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Codd continued to develop and extend his relational model, sometimes in collaboration with Christopher J. Date. One of the normalised forms, the Boyce–Codd normal form, is named after him. — Preceding unsigned comment added by 209.90.32.9 (talk) 17:54, 11 March 2019 (UTC)[reply]

Cheers.—InternetArchiveBot (Report bug) 05:27, 20 December 2016 (UTC)[reply]