Re: [ontolog-forum] Data & Relations

[Kingsley Idehen <kidehen@xxxxxxxxxxxxxx>]

On 5/29/13 8:48 PM, David Eddy wrote:

Stephen/Kingsley -

On May 29, 2013, at 7:42 PM, Stephen Young wrote:

we've had to build tools which suck data directly from an RDBMS

Ummmm... that's nice, but...

Is non RDBMS at the table too?

I assume no one knows how much RDBMS & non-RDBMS there is, but there's a ton of non-RDBMS... think flat files (of infinite variety), IMS, IDMS, ADABAS, M204, S2000, DatacomDB & on & on & on.

Obviously this legacy stuff isn't as popular as the au courant RDBMS, but there's a lot of it.

I've spoken to a n outfit that thinks they have 28 DBMS engines.  I could only count to 17.

Are they ignored or included?

Included, for sure.

The general problem, a consequence of marketing and its domination of the DBMS industry, is the fact that the following falsehoods have become true:

1. structured data is data comprehensible to a SQL RDBMS
2. a SQL RDBMS is the only kind of RDBMS.

The falsehoods above have created a deep misconception of data and relational database management which have now created a world where the natural entity relationship model based representation of data is now perceived as heresy etc..

Personally, I know of no such thing as unstructured data. Likewise, I know of no such thing as an un-relational DBMS. I can accept relational tables and relational property/predicate graphs (or network) as relation modalities associated with DBMS products associated specific declarative query languages etc.. :-)

Kingsley

___________________
David Eddy
deddy@xxxxxxxxxxxxx

Legacy Software, Ltd.
www.legacysoftware.co.uk

781-455-0949

 
_________________________________________________________________
Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/  
Config Subscr: http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/  
Unsubscribe: mailto:ontolog-forum-leave@xxxxxxxxxxxxxxxx
Shared Files: http://ontolog.cim3.net/file/
Community Wiki: http://ontolog.cim3.net/wiki/ 
To join: http://ontolog.cim3.net/cgi-bin/wiki.pl?WikiHomePage#nid1J
 

-- 

Regards,

Kingsley Idehen	      
Founder & CEO 
OpenLink Software     
Company Web: http://www.openlinksw.com
Personal Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca handle: @kidehen
Google+ Profile: https://plus.google.com/112399767740508618350/about
LinkedIn Profile: http://www.linkedin.com/in/kidehen

smime.p7s
Description: S/MIME Cryptographic Signature

_________________________________________________________________
Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/  
Config Subscr: http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/  
Unsubscribe: mailto:ontolog-forum-leave@xxxxxxxxxxxxxxxx
Shared Files: http://ontolog.cim3.net/file/
Community Wiki: http://ontolog.cim3.net/wiki/ 
To join: http://ontolog.cim3.net/cgi-bin/wiki.pl?WikiHomePage#nid1J    (01)