Re: OO vs. RDB challenge

alex99_at_medcentral.com.au
Date: 03/21/05 

Date: 20 Mar 2005 18:43:12 -0800

Costin Cozianu wrote:
> alex99@medcentral.com.au wrote:
> > Costin Cozianu wrote:
> >
> >>alex99@medcentral.com.au wrote:
> >>
> >>>Costin Cozianu wrote:
> >>>
> >>>
> >>>>alex99@medcentral.com.au wrote:
> >>>>
> >>>>
> >>>>>Costin Cozianu wrote:
> >>>>>
> >>>>>
> >>>>>
> >>>>>>alex99@medcentral.com.au wrote:
> >
> >
> > SNIP.
> >
> >
> >>You're all just brochure speak. If you were expecting an
intelligent
> >>discussion, you wouldn't be trolling me.
> >
> >
> >>You either have something *technical* and *concrete* and *relevant*
> >>(claiming that SQL cannot control rocket engines is technically
true,
> >
> >
> >>but irrelevant to the point of being idiotic), or else this
> >>"intelligent" discussion is over.
> >
> >
> > Your reply amazes me. I assure you I am not trolling anyone.
> >
> > Can you spell out if that wiki page is only about the SQL challenge
or
> > about relational and object oriented technology in general.
> >
> > The page talks about the general case but here you seem to insist
on
> > strict adherence only to the SQL oriented challenge?
> >
> > Which is it, please clarify.
> >
>
>
> I don't understand where you get such non-sense as implying that I
> insist on a non-existent SQL challenge. Using SQL is just one of
> possible solutions. Other solutions have failed to materialize but a
lot
> of handwaving, including yours have been done instead.
>
> The challenge is clearly spelled, it is about providing an interface
> behind which the client code can manage a typical many to many
> relationship, under the normal constraints most modern software have
to
> face, including concurrent operation.
>
> More than that I do not understand what you want me to clarify.

Great thanks for that. So you're only focused on the challenge while I
am focussed on everything else on that WIKI page. So our paths don't
meet.

A typical many to many relationship for me involves "joining"
information from different kinds of sources. The definitive corporate
user list may be in a passwd file and the (reporting chain) group
information may be an XML file.

If you put the user's in a database then it gets out of sync with the
definitive list.

The groups XML file may change in structure, new fields may appear, old
ones disappear, new branches or sub-trees may appear. All easily
readable to humans and (certain kinds of software) but such a fluid
schema doesn't map easily to systems requiring a more rigid schema.

Models that use polymorphism and complex interrelationships between
objects are also of interest.

Nevermind, maybe another time,
Alex

Relevant Pages

  • Re: OO vs. RDB challenge
    ... The definitive corporate ... > information may be an XML file. ... > The groups XML file may change in structure, new fields may appear, old ... > schema doesn't map easily to systems requiring a more rigid schema. ...
    (comp.object)
  • RE: MS patch-scanner for Win-NT, 2K, IIS, SQL
    ... MS patch-scanner for Win-NT, 2K, IIS, SQL ... XML file from the following location - mssecure.xml Possible ... and on a NT 4 Server, but the scanner works fine on a W2K Server ...
    (Focus-Microsoft)
  • RE: MS patch-scanner for Win-NT, 2K, IIS, SQL
    ... MS patch-scanner for Win-NT, 2K, IIS, SQL ... seems so far that the patches it suggests are accurate. ... it the patch for advisory MS01-015 is not istalled, ... verison of the binary or the xml file at any of the URLs I've been given. ...
    (Focus-Microsoft)
  • Re: Looking for database design/model software
    ... > generate SQL, ... Since Dia ... I actually have a small PHP script that takes the input of ... feed it into another script that turns it an XML file for Dia. ...
    (RedHat)
  • Re: ADO.NET questions
    ... Sure, you can use XML to move data to and from SQL Server, but it's very ... >>> have a way to export rows from a few tables from one users computer to ... >>> email xml file to another user) ... >>> 5)Create SQLDataAdapter on target computer. ...
    (microsoft.public.dotnet.framework.adonet)