Re: [Bigdata-developers] SWRL support

[Michael S. <ms...@me...>]

Dear Alex,

is there anything that speaks against SPARQL UPDATE?

- http://www.w3.org/TR/sparql11-update/ <http://www.w3.org/TR/sparql11-update/>
- http://wiki.blazegraph.com/wiki/index.php/SPARQL_Update <http://wiki.blazegraph.com/wiki/index.php/SPARQL_Update>

If I understand your scenario right, your UPDATE query  (untested!) might look something like:

INSERT
{
  ?from :myNewObjectProperty ?to
}
WHERE
{
   ?node :from ?from .
   ?node :to ?to .
   ?node :dType "givenValue" .
}

This query would insert an edge "?from :myNewObjectProperty ?to” whenever there exists a node satisfying the condition (you may need to take care of multivalued properties).

Best,
Michael

> On 25 May 2015, at 23:19, Alex Jouravlev <al...@bu...> wrote:
> 
> Hi guys,
> 
> Do you know if Blazegraph supports SWRL? 
> 
> If not, would be the best way to approach the following:
> 
> I have a node that have object properties "from" and "to" and data properties "dType". I need to derive an object property pointing from "from" object to "to" object when the value of "dType" is equal to given.
> 
> Thank you
> Alex Jouravlev
>  <>Director, Business Abstraction Pty Ltd 
> Phone:       +61-(2)-8003-4830
> Mobile:     +61-4-0408-3258
> Web: http://www.businessabstraction.com <http://www.businessabstraction.com/>
> LinkedIn: http://au.linkedin.com/in/alexjouravlev/ <http://au.linkedin.com/in/alexjouravlev/>
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