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Wikidata:SPARQL query service/Wikidata Query Help/nl

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This page is a translated version of the page Wikidata:SPARQL query service/Wikidata Query Help and the translation is 46% complete.

Welcome to the Wikidata Query Service help portal

The place where your questions to the Wikidata Query Service are answered. Questions 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.


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

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

Bouw een query
Stap-voor-stap voorbeelden

Meer ervaren gebruikers
Voorbeeld query's
Voorbeeld query's in SPARQL, ter inspiratie en als basisblokken voor je eigen query's.
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.
Advanced query concepts further explained, such as optionality and alternatives, working with dates, coordinates, qualifiers, references, etc.
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.
Tips voor het optimaliseren van Queries voor een snellere uitvoering en het vermijden van een time-out.