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This page is a translated version of the page Wikidata:SPARQL query service/Wikidata Query Help and the translation is 44% complete.

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Welcome to the Wikidata Query Service help portal

The place where your questions to the Wikidata Query Service are answered. Question to Wikidata can be about pieces of knowledge in this world and their relationships. This can be used to use Wikidata as a knowledge base or generate lists for other Wikimedia projects, such as Wikipedia.

We also have documentation for advanced users that goes beyond the first steps. The Wikidata Query Service provides a SPARQL endpoint including a powerful Web-GUI. SPARQL (pronounced "sparkle") is an RDF query language, that is, a semantic query language for databases. With SPARQL you can extract any kind of data, with a query composed of logical combinations of triples.

Eerste stappen
A gentle introduction to the Wikidata Query Service
This introduction introduces you to the user interface of the Wikidata Query Service. You don't need to learn SPARQL to modify queries and display results. This gentle introduction is a good start if you want to start playing around.

Query Helper
How to use the Query Helper to build or edit a query.

Result Views

A showcase of various possibilities to display Wikidata Query results.

SPARQL-Editor

A help page to explain the features of the SPARQL editor.

Toegang tot de Query Service
query.wikidata.org
De gebruikersinterface van de Wikidata Query Service.
Request a query
This is a page where Wikidata SPARQL queries can be requested from community members who will write them for you as volunteers.

Building a query
Stap-voor-stap voorbeelden

SPARQL Tutorial

Een inleidende cursus over SPARQL voor beginners. Deze tutorial richt zich op iedereen die dieper willen ingaan op query's en die de taal willen leren om complexe queries te schrijven.

Meer ervaren gebruikers
Voorbeeldquery's
Voorbeeldquery's in SPARQL, ter inspiratie en als basisblokken voor je eigen query's.
Gebruikershandleiding
The user manual contains technical information on the Wikidata Query Service. This includes instructions on how to access it programmatically via GET or POST requests, or how to download and run the software behind the service yourself.
RDF-Dump-Formaat
Technische documentatie over het RDF-serialisatieformaat voor Wikidata. Dit omvat informatie over hoe informatie in Wikidata wordt uitgedrukt in RDF en hoe deze kan worden bevraagd via een query.