- From: Michael Lang Jr. <michaelallenlang@gmail.com>
- Date: Wed, 12 Dec 2012 16:35:46 -0500
- To: Barry Norton <barry.norton@ontotext.com>
- Cc: "public-lod@w3.org" <public-lod@w3.org>
Received on Wednesday, 12 December 2012 21:36:15 UTC
Hi Ying,
We make a tool called Spyder, which is not open-source, but is free -
http://www.revelytix.com/content/spyder. It will let you use R2RML over a
CVS file directly to convert to RDF (or query with SPARQL without
converting).
Mike
phone: 410-584-0009 (office)
443-928-3782 (cell)
skype: michael.allen.lang.jr
twitter: http://twitter.com/mlang2
On Wed, Dec 12, 2012 at 4:15 PM, Barry Norton <barry.norton@ontotext.com>wrote:
>
> Ying, this might sound like a stupid question, but if you want SQL
> features why not pull your CSV into a relational DB table then R2RML it
> into RDF (since mappings will allow you arbitrary SQL)?
>
> Barry
>
>
>
>
> On 12/12/2012 21:08, Ying Ding wrote:
>
>> Hi,
>>
>> I am looking for a open source software to convert csv file to RDF based
>> on one pre-defined ontology. Also, this converter should support
>> complicated SQL queries (e.g., Group BY query and IF/THEN/ELSE query) while
>> defining the mapping between csv to our pre-defined ontology.
>>
>> thanks
>> ying
>>
>>
>>
>
>
Received on Wednesday, 12 December 2012 21:36:15 UTC