Thank you, that was the problem! Still after a year using SPARQL I'm
missing the basic stuff...
Mikael
On 10.1.2017 13:18, Rob Vesse wrote:
The two ?child variables occur in different scopes. Therefore your MINUS is
subtracting all resources that have any value for dcterms:subject which is
almost certainly not your intent
Movingthe earlier pattern that selects specific ?child values of interest
inside of the minus likely gives you the results you were after because that
puts the two variables in the same scope
Rob
On 10/01/2017 10:32, "Mikael Pesonen" <[email protected]> wrote:
Hi,
Could anyone help, whats the issue with my query using MINUS?
First, this returns all ~700 resources :
SELECT DISTINCT ?resource
WHERE {
GRAPH <http://www.lingsoft.fi/ontologies/574ef1a40236a/>
{
<http://www.lingsoft.fi/ontologies/574ef1a40236a/9db41bbf2114c46e>
skos:narrower* ?child
}
GRAPH <http://www.lingsoft.fi/resource-meta/> {
?resource dcterms:isPartOf
<http://www.lingsoft.fi/rdf/uid/574ef1a40236a> .
}
}
And adding one condition (dcterms:subject) returns correctly ~300 resources
SELECT DISTINCT ?resource
WHERE {
GRAPH <http://www.lingsoft.fi/ontologies/574ef1a40236a/>
{
<http://www.lingsoft.fi/ontologies/574ef1a40236a/9db41bbf2114c46e>
skos:narrower* ?child
}
GRAPH <http://www.lingsoft.fi/resource-meta/> {
?resource dcterms:isPartOf
<http://www.lingsoft.fi/rdf/uid/574ef1a40236a> .
?resource dcterms:subject ?child
}
}
But I would like to get the rest of docs, about ~400, that above is not
returning
SELECT DISTINCT ?resource
WHERE {
GRAPH <http://www.lingsoft.fi/ontologies/574ef1a40236a/>
{
<http://www.lingsoft.fi/ontologies/574ef1a40236a/9db41bbf2114c46e>
skos:narrower* ?child
}
GRAPH <http://www.lingsoft.fi/resource-meta/> {
?resource dcterms:isPartOf
<http://www.lingsoft.fi/rdf/uid/574ef1a40236a> .
MINUS {
?resource dcterms:subject ?child
}
}
}
This query returns 0 results. I don't get what's wrong here. I'm using
Jena Fuseki 2.3.1.
Thanks,
Mikael
--
Lingsoft - 30 years of Leading Language Management
www.lingsoft.fi
Speech Applications - Language Management - Translation - Reader's and Writer's Tools - Text Tools - E-books and M-books
Mikael Pesonen
System Engineer
e-mail: [email protected]
Tel. +358 2 279 3300
Time zone: GMT+2
Helsinki Office
Eteläranta 10
FI-00130 Helsinki
FINLAND
Turku Office
Linnankatu 10 A
FI-20100 Turku
FINLAND
--
Lingsoft - 30 years of Leading Language Management
www.lingsoft.fi
Speech Applications - Language Management - Translation - Reader's and Writer's
Tools - Text Tools - E-books and M-books
Mikael Pesonen
System Engineer
e-mail: [email protected]
Tel. +358 2 279 3300
Time zone: GMT+2
Helsinki Office
Eteläranta 10
FI-00130 Helsinki
FINLAND
Turku Office
Linnankatu 10 A
FI-20100 Turku
FINLAND
