Re: [dotNetRDF-Support] SPARQL endpoint

[Rob V. <rv...@do...>]

        Hi Sandhya


        I am slightly unclear what you are asking here?


        Do you have some static RDF dump you wish to expose as a SPARQL
        endpoint or do you have some SQL database which you want to
        dynamically map to RDF and SPARQL over?


        The former can be done but may not be that performant if your
        dataset is large (million triples plus) and for anything more than 
a
        few hundred thousand triples I'd strongly suggest putting the RDF
        into a native triple store anyway and using it's SPARQL endpoint. 
        You can then build apps that use dotNetRDF to talk to that store.


        If it is the latter then dotNetRDF does not have the ability to do
        this currently unless your SQL store was created using our 
Data.Sql
        library in which case the data is simply whatever RDF you put into
        there and is stored in our own well defined schema for encoding 
RDF.


        There is capability for plugging arbitrary backends into the 
SPARQL
        engine but this is fairly complex and I'm not sure that it
        necessarily fits your use case as from your email I'm unclear on
        exactly what you are trying to achieve.  Some more details would 
be
        helpful


        Regards,


        Rob


        On 4/10/12 3:28 AM, sandhya wrote:

        Hi Rob,
         
        We are in the process of creating our own
        SPARQL endpoint where users can query. Towards this, we have
        converted the data in RDF format in the SQL Server store.
        Rdf:type has not been specified. We are not clear as to how
        can the data schema be defined in dotnetrdf. Please guide us
        in this direction. 
         
        Regards
        Sandhya


        
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