Wikidata

Primhill.Computers

Joined 24 December 2019
Babel user information
en-N This user has a native understanding of English.
de-2 Dieser Benutzer beherrscht Deutsch auf fortgeschrittenem Niveau.
fr-3 Cet utilisateur dispose de connaissances avancées en français.
This user is a member of
WikiProject Informatics.
Users by language

SPARQL querying from Informatics by topic edit

The intention is to explore various classes and properties created by the project Wikidata:WikiProject Informatics.

Concrete software objects edit

This enumerates technical and concrete software objects, described in Informatics, which are the building blocks of a process running an application. The general criteria are:

INCLUDED

  • Arguments of system calls.
  • Things which can be displayed by a command, or taken as a command parameter.

EXCLUDED

  • Concepts, patterns, standards, general terms: These do not appear in a binary program or library etc...
  • Brands, except as an aside information about a technical object.
  • Physical devices except if visible from software, and then, just mentioned. The reason is that this works focuses only on software objects.

Operating system objects edit

Linux objects edit

Network IOs edit

File IOs edit

DBs edit

Message queues edit

Programming edit

Compiled programs structure edit

Programming edit

Python edit

System calls edit

... etc ...

Amazon services edit

Amazon S3 Glacier (Q4740857), Amazon S3 (Q2593067)

Brands etc... edit

SPARQL technical queries from Informatics edit

Querying from FOAF with "select from" edit 

PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT  ?name
FROM    <http://example.org/foaf/aliceFoaf>
WHERE   { ?x foaf:name ?name }
Try it!

This returns the error: 

Unknown error: NAMED clauses in queries are not supported in triples mode.

Querying from Survol with "select from" edit

This fails with the same error message. 

SELECT  *
FROM    <http://vps516494.ovh.net/Survol/survol/sources_types/enumerate_CIM_Process.py?xid=.&mode=rdf>
WHERE {}
Try it!

Federated query from DBPedia edit 

PREFIX dbc: <http://dbpedia.org/resource/Category:>
PREFIX dct: <http://purl.org/dc/terms/>
SELECT ?wsubjectLabel WHERE {
    SERVICE <http://dbpedia.org/sparql> {
         ?subject dct:subject dbc:American_rock_singers .
         ?subject owl:sameAs ?wsubject .
         FILTER (STRSTARTS(STR(?wsubject), "http://www.wikidata.org"))
    }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
Try it!

This works.

Simpler federated query from Survol edit

This returns the error message: 

Unknown error: Service URI http://vps516494.ovh.net/Survol/survol/sparql.py is not allowed

PREFIX survol: <http://www.primhillcomputers.com/survol#>
SELECT * WHERE {
    SERVICE <http://vps516494.ovh.net/Survol/survol/sparql.py> {
            SELECT ?process_id
            WHERE
            { ?url_proc survol:Handle ?process_id .
              ?url_proc rdf:type survol:CIM_Process .
            }
    }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
Try it!
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