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Re: RDB structure to RDF mapping

From: Paul Tyson <phtyson@sbcglobal.net>
Date: Tue, 19 Apr 2016 13:13:42 -0500
Message-ID: <1461089622.1324.5.camel@sbcglobal.net>
To: Alessandro Seganti <a.seganti@cognitum.eu>
Cc: semantic-web@w3.org
On Mon, 2016-04-18 at 17:25 +0200, Alessandro Seganti wrote:
> Hi everyone,
> I want to formalize in RDF the table structure of a relational
> database. What I would like to do is to formalize the links that
> exists between all the tables inside a given relational database. This
> would result in a graph where the nodes are the tables and the links
> are the columns that can be used to join these tables.
> My question is: is there some standard/ontology to describe this? 
> To my understanding the R2RML ontology is to describe mappings between
> RDB and RDF (no RDB structure is mentioned). I also found a document
> about direct mapping but no ontology is defined in this document.

When the RDB2RDF WG was working I suggested including an RDB ontology.
But it was considered out of scope so nothing of the sort was included
in their final deliverables.


My work didn't (and doesn't) involve RDBMS deeply enough to pursue this,
so I don't know how valuable this would be for practical tasks.

> Thank you for your help.
> Alessandro Seganti Ph.D.
> Cognitum Sp. z o.o., Data Engineer
> mail: a.seganti@cognitum.eu, tel: +48 22 250 2541, fax: +48 22 250 28
> 98
> web: http://www.cognitum.eu/, fb: facebook.com/cognitum.eu
Received on Tuesday, 19 April 2016 18:14:14 UTC

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