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Posted to users@jena.apache.org by emri mbiemri <em...@gmail.com> on 2022/04/11 09:20:37 UTC

Recursive queries in SPARQL

Hello community,

I am wondering if there is yet any implementation of a recursive query
operator in SPARQL? If yes then how can I implement it on RDF graphs?

I have seen a publication that offers the recursion operator for SPARQL:
https://content.iospress.com/articles/semantic-web/sw200401

but it seems it has not been integrated on SPARQL yet?

Thanks. Regards.

Re: Recursive queries in SPARQL

Posted by Florian Kleedorfer <fl...@austria.fm>.

> I only had a quick look at the reference, but it seems to me that
> SPARQL property paths might cover at least some of the cases.

Just realized it does not. Sorry for the noise!

Re: Recursive queries in SPARQL

Posted by Florian Kleedorfer <fl...@austria.fm>.

Hi,

I only had a quick look at the reference, but it seems to me that SPARQL 
property paths might cover at least some of the cases.

https://www.w3.org/TR/sparql11-query/#propertypaths

hth,
Florian

Am 2022-04-11 11:20, schrieb emri mbiemri:
> Hello community,
> 
> I am wondering if there is yet any implementation of a recursive query
> operator in SPARQL? If yes then how can I implement it on RDF graphs?
> 
> I have seen a publication that offers the recursion operator for 
> SPARQL:
> https://content.iospress.com/articles/semantic-web/sw200401
> 
> but it seems it has not been integrated on SPARQL yet?
> 
> Thanks. Regards.