[comp.databases] Ted Codd's Golden Principles

howellg@idec.stc.co.uk (Gareth Howell) (03/12/87)

Does anybody know the citation for the paper in which Ted Codd
re-states his 12 principles of relational database design and compares
these against commercial "relational" database packages?

Gareth
----

-- 
Gareth Howell  <howellg@idec.stc.co.uk>  G6KVK @ IO91VX
ICL Network Systems, Private Networks Business Centre   
London Road, Stevenage, Herts, England, SG1 1YB    Tel:+44 (0)438 738294
howellg%idec%ukc@mcvax.uucp, idec!howellg@seismo.CSS.GOV

howellg@idec.stc.co.uk (Gareth Howell) (03/12/87)

Does anybody know the citation for the paper in which Ted Codd
re-states his 12 principles of relational database design and compares
these against commercial "relational" database packages?

Gareth X 8294

-- 
Gareth Howell  <howellg@idec.stc.co.uk>  G6KVK @ IO91VX
ICL Network Systems, Private Networks Business Centre   
London Road, Stevenage, Herts, England, SG1 1YB    Tel:+44 (0)438 738294
howellg%idec%ukc@mcvax.uucp, idec!howellg@seismo.CSS.GOV

sundin@chalmers.UUCP (03/27/87)

I think that the article(s) you are looking for are:

E.F.Codd: Is your DBMS really relational?, 
in "Computerworld", No ?, October 14, 1985

E.F.Codd: Does Your DBMS run by the rules?
in "Computerworld", No. ? October 21, 1985

dmw10@amdahl.UUCP (03/31/87)

Perhaps one of these is the Codd piece you were looking for:
"A Relational Model of Data for Large Shared Data Banks"
Communications of the ACM, Volume 13, No 6, June 1970
...or
"Extending the Relational Database Model to Capture More Meaning."
ACM TODS 4, No. 4 (December 1979)


Dale Sansing
amdahl!dmw10

[Any views or opinions expressed here are purely my own; they are not,
nor  intended to reflect,  the views of Amdahl Corporation or my
fellow employees.]