Re: Sensible and NonsenSQL Aspects of the NoSQL Hoopla

Am Mittwoch, 28. August 2013 05:00:46 UTC+2 schrieb James K. Lowden:
> On Mon, 26 Aug 2013 03:20:44 -0700 (PDT)
>
> karl.scheurer_at_o2online.de wrote:
>
> Many programming languages had data structures when the relational
>
> model was invented. Not all, of course, not Forth for example. But
>
> Cobol, Fortran, Algol, and PL/1 did.
>
Sorry, data structures like records and arrays are data types in our terminology. We call linked lists, tree, graphs, stacks, queues ... (dynamic) data structures. These structures are not part of standard libraries before C++. The next step after data structues are objects. (data structures with special behaviours). We started objects with homegrown matrix- and complex- number objects for engineering calculations. Relations can be implemented as objects as I know at least one system complete done with objects.

I challenge a non object implementation for relations with satisfying Codd' constraints (row-, column order are insignificant).

m.f.G.
Karl Scheurer Received on Wed Aug 28 2013 - 09:43:34 CEST