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Re: R2RML: RDB to RDF Mapping Language

From: Michael Hausenblas <michael.hausenblas@deri.org>
Date: Sun, 31 Oct 2010 11:08:47 +0100
To: Riccardo Tasso <tasso@elet.polimi.it>, Ivan Herman <ivan@ivan-herman.net>
CC: Linked Data community <public-lod@w3.org>, Semantic Web community <semantic-web@w3.org>
Message-ID: <C8F2FEBF.16800%michael.hausenblas@deri.org>

Riccardo,

D2R is one way to do it, a sort of non-standardised precursor to R2RML.
There are many more ways to do it [1] - that's why we standardise it ;)

Cheers,
      Michael (with his RDB2RDF WG co-chair hat on)

[1] http://www.w3.org/2005/Incubator/rdb2rdf/RDB2RDF_SurveyReport.pdf

-- 
Dr. Michael Hausenblas
LiDRC - Linked Data Research Centre
DERI - Digital Enterprise Research Institute
NUIG - National University of Ireland, Galway
Ireland, Europe
Tel. +353 91 495730
http://linkeddata.deri.ie/
http://sw-app.org/about.html



> From: Riccardo Tasso <tasso@elet.polimi.it>
> Date: Sun, 31 Oct 2010 12:00:56 +0100
> To: Ivan Herman <ivan@ivan-herman.net>
> Cc: Linked Data community <public-lod@w3.org>, Semantic Web community
> <semantic-web@w3.org>
> Subject: Re: R2RML: RDB to RDF Mapping Language
> Resent-From: Linked Data community <public-lod@w3.org>
> Resent-Date: Sun, 31 Oct 2010 11:01:48 +0000
> 
> What is the difference with D2R [1]?
> 
> Riccardo
> 
> [1] http://www4.wiwiss.fu-berlin.de/bizer/d2rmap/D2Rmap.htm
> 
> On 31/10/2010 10:13, Ivan Herman wrote:
>> FYI...
>> 
>> The RDB2RDF Working Group[1] has published the First Public Working Draft of
>> R2RML: RDB to RDF Mapping Language[2]. R2RML is a language for describing how
>> to put relational data on the Semantic Web. With R2RML, people express
>> customized mappings from relational databases to RDF datasets, allowing them
>> to view existing relational data in the RDF data model, expressed in their
>> preferred structure and target vocabulary.
>> 
>> 
>> Ivan
>> 
>> [1] http://www.w3.org/2001/sw/rdb2rdf/
>> [2] http://www.w3.org/TR/2010/WD-r2rml-20101028/
>> 
>> ----
>> Ivan Herman
>> Bankrashof 108
>> 1183NW Amstelveen
>> The Netherlands
>> http://www.ivan-herman.net
>> 
>> 
>> 
>> 
>>    
> 
> 
Received on Sunday, 31 October 2010 11:09:31 UTC

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