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Posted to users@jena.apache.org by "Dimov, Stefan" <st...@sap.com> on 2018/01/07 22:15:40 UTC

Named graph N-Triples tdbloader2

Hi all,

I want to upload RDF resources with tdbloader2 into multiple named graphs in TDB.

I understand that fastest way is if they are in N-triples format. But how do I specify the named graph(s) with tdbloader2 and N-triples.

Is N-quads the only way?

S.

Re: Named graph N-Triples tdbloader2

Posted by "Dimov, Stefan" <st...@sap.com>.

I apologize!

Thanks Adam (not Andy)! 

Andy is someone else (we all know from these threads) who is also very helpful!

(

Regards,
Stefan


On 1/7/18, 2:22 PM, "Dimov, Stefan" <st...@sap.com> wrote:

    Thanks, Andy!
    
    I suspected that avoiding parsing is the reason upload N-triples faster ...
    
    S.
    
    On 1/7/18, 2:19 PM, "ajs6f" <aj...@apache.org> wrote:
    
        N-quads isn't going to be very much slower than N-triples. The practice is to avoid formats that require a parser with a lot of context, like RDF/XML.
        
        ajs6f
        
        > On Jan 7, 2018, at 5:15 PM, Dimov, Stefan <st...@sap.com> wrote:
        > 
        > Hi all,
        > 
        > I want to upload RDF resources with tdbloader2 into multiple named graphs in TDB.
        > 
        > I understand that fastest way is if they are in N-triples format. But how do I specify the named graph(s) with tdbloader2 and N-triples.
        > 
        > Is N-quads the only way?
        > 
        > S.

Re: Named graph N-Triples tdbloader2

Posted by "Dimov, Stefan" <st...@sap.com>.

Thanks, Andy!

I suspected that avoiding parsing is the reason upload N-triples faster ...

S.

On 1/7/18, 2:19 PM, "ajs6f" <aj...@apache.org> wrote:

    N-quads isn't going to be very much slower than N-triples. The practice is to avoid formats that require a parser with a lot of context, like RDF/XML.
    
    ajs6f
    
    > On Jan 7, 2018, at 5:15 PM, Dimov, Stefan <st...@sap.com> wrote:
    > 
    > Hi all,
    > 
    > I want to upload RDF resources with tdbloader2 into multiple named graphs in TDB.
    > 
    > I understand that fastest way is if they are in N-triples format. But how do I specify the named graph(s) with tdbloader2 and N-triples.
    > 
    > Is N-quads the only way?
    > 
    > S.

Re: Named graph N-Triples tdbloader2

Posted by ajs6f <aj...@apache.org>.

N-quads isn't going to be very much slower than N-triples. The practice is to avoid formats that require a parser with a lot of context, like RDF/XML.

ajs6f

> On Jan 7, 2018, at 5:15 PM, Dimov, Stefan <st...@sap.com> wrote:
> 
> Hi all,
> 
> I want to upload RDF resources with tdbloader2 into multiple named graphs in TDB.
> 
> I understand that fastest way is if they are in N-triples format. But how do I specify the named graph(s) with tdbloader2 and N-triples.
> 
> Is N-quads the only way?
> 
> S.