Why do you ask this as a response to a totally different question? And
what's the relationship to Virtuoso? I think this questions is better
for something like answer.semanticweb.com or stackoverflow.
By the way, I do not understand the question: What do you mean by "I
want to link to find a dataset"?
Lorenz
Hi every body
I am trying to use bio2rdf, but i want to link to find a dataset.
This link http://bio2rdf.org/bio2rdf.dataset_vocabulary give me an error.
any suggestion of other link could be helpfull.
Kind regards
Fatma
2016-02-12 14:55 GMT+01:00 Pantelis Natsiavas <natsia...@gmail.com
<mailto:natsia...@gmail.com>>:
Hi everybody.
I am trying to execute the query
PREFIX void: <http://rdfs.org/ns/void#>
PREFIX dv: <http://bio2rdf.org/bio2rdf.dataset_vocabulary:>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX drugbank: <http://bio2rdf.org/drugbank_vocabulary:>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT ?drug
?drugTitle
?brandTitle
WHERE {
?drug a drugbank:Drug .
OPTIONAL { ?drug dcterms:title ?drugTitle .
?drugTitle bif:contains "'Ibuprofen'"} .
OPTIONAL { ?drug drugbank:brand ?brand .
?brand bif:contains "'Ibuprofen'"} .
OPTIONAL { ?brand dcterms:title ?brandTitle .
?brandTitle bif:contains "'Ibuprofen'"} .
}
which uses bif:contains inside optionals.
I get the error:
Virtuoso 37000 Error SQ156: Internal Optimized compiler error : supposed to
have ose in bracket outer in rdfinf.c:2636.
Please report the statement compiled.
SPARQL query:
#output-format:text/html
PREFIX void:
PREFIX dv:
PREFIX dcterms:
PREFIX drugbank:
PREFIX rdf:
SELECT ?drug
?drugTitle
?brandTitle
WHERE {
?drug a drugbank:Drug .
OPTIONAL { ?drug dcterms:title ?drugTitle .
?drugTitle bif:contains "'Ibuprofen'"} .
OPTIONAL { ?drug drugbank:brand ?brand .
?brand bif:contains "'Ibuprofen'"} .
OPTIONAL { ?brand dcterms:title ?brandTitle .
?brandTitle bif:contains "'Ibuprofen'"} .
}
Is this an invalid query? I tried the same query with only the
first optional clause in place and I don't get the error, but I
don't get any results either. It seems it takes too long to
execute (more than 10 minutes).
Could you please point me on how I could use such a restriction
with multiple optional clauses in a performance suitable manner?
Kind regards,
Pantelis Natsiavas
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--
Lorenz Bühmann
AKSW group, University of Leipzig
Group: http://aksw.org - semantic web research center
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