On 12/14/15 11:34 AM, Efimov, Alexander wrote:
>
> Hi Kingsley,
>
>
>
> The idea is that our concept model I map to with R2RML is not the same
> as source tables.
>
> So just using output from Generate RDF Views would not work.
>
> I write custom R2RML code which maps from flat DB model to graph
Hi Kingsley,
The idea is that our concept model I map to with R2RML is not the same as
source tables.
So just using output from Generate RDF Views would not work.
I write custom R2RML code which maps from flat DB model to graph concept model
For example:
Let it be the following tables:
1.
On 12/14/15 9:21 AM, Efimov, Alexander wrote:
>
> Hi,
>
>
>
> I’ve built R2RML mappings, but my SPARQL Query (I expect that to be
> joining across about 10 views in DB) runs for hours.
>
> Is there a way to get a SQL query which Virtuoso generates and runs
> over the database views?
>
> I have tr
Hi,
I've built R2RML mappings, but my SPARQL Query (I expect that to be joining
across about 10 views in DB) runs for hours.
Is there a way to get a SQL query which Virtuoso generates and runs over the
database views?
I have tried to use trace_on(); command but have nothing human readable in
te
