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What is the Wikidata Query Service?
What is Wikidata SPARQL query service?
What query language does Wikidata use?
How does wdqs work on Wikidata?
Mar 6, 2024 · Wikidata Query Service (WDQS) https://query.wikidata.org/sparql: Run SPARQL Queries upon Wikidata's wikibase. Run, test, download the data as xml, json, csv or tsv. Has advanced user-friendly features such as : word hovering too see a term's meaning, code optimization, etc. Wikimedia Commons Query Service (WCQS)
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SPARQL ("Sparkl" ausgesprochen) ist eine RDF-Abfragesprache,...
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SPARQL (pronunciato come sparkle in inglese, parola che...
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Wikidata:SPARQL query service/Documentation - a hub for...
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Euskara - Wikidata : SPARQL query service
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SPARQL (uitgesproken als "sparkle") is een RDF-querytaal,...
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SPARQL (udtales "sparkle") er et RDF-forespørgselssprog, det...
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SPARQL (uttalas som engelskans "sparkle") är ett...
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British English - Wikidata : SPARQL query service
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SPARQL (wym. „sparkel”) jest językiem zapytań RDF, czyli...
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Perkhidmatan Pertanyaan Sparql - Wikidata : SPARQL query...
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Mar 8, 2024 · WDQS, the Wikidata Query Service, is a powerful tool to provide insight into Wikidata's content. This guide will teach you how to use it. See also the interactive tutorial by Wikimedia Israel . Before writing your own SPARQL query, look at {{ Item documentation }} or any other generic SPARQL query template and see if your query is already included.
Mar 24, 2024 · 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.
- Using Wikidata's Data
- Wikimedia Projects
- Data Best Practices
- Access Best Practices
- When to Use It?
- Details
- Less Verbose RDF Output
- Revisions and Caching
- When to Use them?
- Tools
Wikidata offers a wide range of general data about everything under the sun. All that data is licensed CC0, "No rights reserved", for the public domain. Changes to APIs and other methods of accessing Wikidata are subject to the Stable Interface Policy. Data sources on this page are not guaranteedto be stable interfaces.
This document is about accessing data from outside Wikimedia projects. If you need to present data from Wikidata in another Wikimedia project, where you can employ parser functions, Lua and/or other internal-only methods, refer to How to use data on Wikimedia projects.
We offer the data in Wikidata freely and with no requirement for attribution under CC-0. In return, we would greatly appreciate it if, in your project, you mention Wikidata as the origin of your data. In so doing you help ensure that Wikidata will stay around for a long time to provide up-to-date and high-quality data. We also promote the best proj...
When accessing Wikidata's data, observe the following best practices: 1. Follow the User-Agent policy – send a good User-Agent header. 2. Follow the robot policy: send Accept-Encoding: gzip,deflateand don’t make too many requests at once. 3. If you get a 429 Too Many Requests response, stop sending further requests for a while (see the Retry-Afterr...
Use search when you need to look for a text string, or when you know the names of the entities you're looking for but not the exact entities themselves. It's also suitable for cases in which you can specify your search based on some very simple relations in the data. Don't use search when the relations in your data are better described as complex.
You can make your search more powerful with these additional keywords specific to Wikidata: haswbstatement, inlabel, wbstatementquantity, hasdescription, haslabel. This search functionality is documented on the CirrusSearch extension page. It also has its own API action.
By default, the RDF data that the Linked Data interface returns is meant to be complete in itself, so it includes descriptions of other entities it refers to. If you want to exclude that information, you can append the query parameter ?flavor=dumpto the URL(s) you request. By appending &flavorto the URL, you can control exactly what kind of data ge...
You can request specific revisions of an entity with the revision query parameter: https://www.wikidata.org/wiki/Special:EntityData/Q42.json?revision=112. The following URL formats are used by the user interface and by the query service updater, respectively, so if you use one of the same URL formats there’s a good chance you’ll get faster (cached)...
Use a dump when your result set is likely to be very large. You'll also find a dump important when setting up your own query service. Don't use a dump if you need current data: the dumps take a very long time to export and even longer to sync to your own query service. Dumps are also unsuitable when you have significant limits on your available ban...
At you'll find a Go library for processing Wikipedia and Wikidata dumps.You can use wdumperto get partial custom RDF dumps.5 days ago · 1 A gentle introduction to the Wikidata Query Service. 1.1 What is Wikidata? 1.2 How do I ask a question? 1.3 What is a query? 1.4 Can I freely use this data? 1.5 What now? 2 How to use Wikidata for a simple query. 2.1 Get a list of all the cats in the world; 2.2 What about dogs? 3 Breaking down the query; 4 Text to SPARQL walkthrough; 5 Diving ...
Jan 6, 2024 · SPARQL query service/queries. Screenshot of the WDQS query editor, which allows queries to be modified and then executed. A page for interesting or illustrative queries. It also discusses how queries can be shown on wiki pages, including either the full code of the query or a templated link.
Mar 3, 2024 · Wikidata Query Service components. Wikidata Query Service is the Wikimedia implementation of SPARQL server, based on the Blazegraph engine, to service queries for Wikidata and other data sets. Please see more detailed description in the User Manual.
