- From: ashok malhotra <ashok.malhotra@oracle.com>
- Date: Wed, 20 Jan 2010 14:53:01 -0800
- To: Sören Auer <auer@informatik.uni-leipzig.de>
- CC: Sören Auer <soeren.auer@gmail.com>, RDB2RDF WG <public-rdb2rdf-wg@w3.org>
OK. Thx! Perhaps we can make that clear in the writeup.
All the best, Ashok
Sören Auer wrote:
> On 20.01.2010 7:58, ashok malhotra wrote:
>> Question: If the 'class' parameter is omitted, what class do the
>> instances belong to?
>
> RDF does not require, that every entity belongs to a class, so we
> should not force people to do so.
> In certain cases you also might want to create the class membership
> dynamically from a column in the DB, e.g.:
>
> R2RMap("SELECT id, point, category AS 'rdf:type'");
>
> In that case each instance would become member of a class obtained
> from the category column.
>
> --Sören
Received on Wednesday, 20 January 2010 22:55:38 UTC