yeah that make sense. Thanks
On Mon, May 23, 2011 at 12:16 PM, Roberto Mirizzi <[email protected]
> wrote:
> Il 23/05/2011 17:44, Sarasi Lalithsena ha scritto:
>
> Hi,
>>
>> I want to extract all properties from the DBpedia data set and I tried the
>> following query but it did not work. I even tried to limit the results but
>> still it did not work as well.
>>
>> select distinct ?property where {
>> ?s ?property ?o .
>> }
>>
>> I have the properties defined in the DBpedia Ontology but I am wondering
>> whether their can be some other properties not defined in the ontology. If
>> somebody can help me it would be a great help.
>>
>
> Hi Sarasi,
> probably you will never get the expected results from that query. The main
> problem is that you are asking DBpedia SPARQL endpoint to perform a graph
> matching on all the 672 million triples in DBpedia, and then to select
> distinct property.
> This is too onerous, and the transaction will always time out.
>
>
>
>> Thank You
>> Best Regards
>> Sarasi Lalithsena
>>
>
> best regards,
> roberto
>
> --
> Roberto Mirizzi
> http://sisinflab.poliba.it/mirizzi
>
>
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