SPARQL Query from one Fuseki server to another Fuseki server

[Sandor Kopacsi]

Dear list-member,

I have two Fuseki servers running on two different machines. In one of 
them there are several named graphs containing a lot of concepts.

I would like to run a query from another Fuseki server to select all (or 
later just some) triplets from this dataset using a query like this:

SELECT *
FROM </URL of the SPARQL endpoint/:3030/ds/query>
WHERE {GRAPH </URI of the graph/>
{?s ?p ?o . }
}

but it provides empty set:

-------------
| s | p | o |
=============
-------------

What is wrong?

Thanks in advance,
Sandor

--

Dr. Sandor Kopacsi
IT Software Designer

Vienna University Computer Center