# Use the MediaWiki API to get the articles from a specific category in a specific Wikipedia language version. (One more nice sample query that I wanted to mention is not on the samples page but on the User Manual one: an example of Geospatial searches that lists airports within 100km of Berlin.). The Wikidata Query Service ( WDQS) provides a way for tools to access Wikibase data, via a SPARQL API. More Picasso paintings in one year than all the Vermeer paintings? Admittedly its not a very interesting triple, but were off and running. Ezen a lapon a Wikidata weekly summary hrlevelei olvashat. But then other examples such as "women with most sitelinks and no image born in 1921 or later", which is truncated here: Learning about the data, its structure, and more. the date that architect Jeanne Gang was a MacArthur fellow? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. SPARQL is a query language used to retrieve data stored as RDF (Resource Description Framework) and it is standardized by the W3C. This relies on places using P131 with Q25 ("Wales") as value (or with a value that has Q25 in P131), # look for articles (sitelinks) in Welsh ("cy"), #Definition for Occitania (Q104285) is the one defined by P527 on item Q104285, #place of birth must be using P131 with one of the "?parts" (or -- note the "*" -- a value that uses one of the parts in P131, etc. For example, the number of humans in Wikidata: SELECT (COUNT(?item) AS ?count) W. WHERE { # Then use this results as usual in a query, in this example a simple query for the gender. We can fix that by applying a filter on the language of countryName: Thats more like it! Two comments: * Activating the tag cloud in the UI was not very intuitive to me. . It is a source of open data that you may want to use in your projects. Interested in learning more about querying Wikidata? This page is parsed by the web interface of the query service to fill the query example dialog. The line graph resulting from the Number of bands by year and genre query is also interesting. We can return this by using the rdfs:label predicate: Wow, that returned a lot more rows than we were expecting! Powered by Hugo, Your own free, publicly available SPARQL endpoint. Exploring the ontology takes some work. Lets update our query to return date of birth: We can simplify this query by using the ; syntax to construct multiple statements around ?person. #This query will first contact EntitySearch (an alias to wbsearchentities), #which will pass the items with a label of "soriano" it found to the triple store. ?i wdt:P31 ?id}" } } }, #title:Values of "uses" used in scholarly articles. Learn how your comment data is processed. A piece of it is shown above. Why is apparent power not measured in watts? This query shows a way of mapping locations which span the 180th meridian, without the points being split between the left and right edges of the map. The sample queries range from simple to complex, and each has a Try it! link that loads the query into the query form. # - All label, altLabel and description in a given Language are included. RSS 2.0 feed (full entries), 2022 How does the Chameleon's Arcane/Divine focus interact with magic item crafting? To do . Its ambitious goal is to structure the whole human knowledge in a way that is machine readable and it speaks well to . . After reading one of Jess Barrasas recent QuickGraph posts about enriching a knowledge graph with data from Wikidata, I wanted to learn how to query the Wikidata API so that I could pull in the data for my own QuickGraphs. enriching a knowledge graph with data from Wikidata. Contents 1 Example: Goat locator service 2 Extensions 2.1 WikibaseQualityConstraints 2.2 Deepcat search 3 Services 3.1 Recommendation API 4 Gadgets and user scripts After getting this far, I hadnt even seen 10% of the sample queries, but I did find the answer to my original question about how to get to know the range of possibilities with SPARQL queries of Wikidata better. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. # or if an older expresident died the day before ?date. Per default the Wikibase Query Service GUI is configured to be used as a local development test instance. ), # this is an error and should be fixed at the item using P1540 and P1539 instead, # (wrong query result may be a manifestation of such), # IF multiple ?pop values per country per year exist, we prioritize by source, # census 1st, others 2nd, estimation(s) 3rd, unknown sources (none supplies P459) last, # note: wikibase:rank won't help here: each year may have multiple statements for ?pop value, # rank:prefered is used for the best value (or values) of the latest or current year, # rank:normal may be justified for all of multiple ?pop values for a given year, # .. still need to group if multiple values per country per year exist and, # - multiple ?estimate or multiple ?census (>1 value from same source), # - ?other yields more than one source (>1 values are better than optionally, # supplied estimate, but no census source available), "https://tools.wmflabs.org/reasonator/?q=", # These lines generate a calendar from January 1 to December 31, # educated at Oxford or an Oxford college, #defaultView:Map{"layer":"?instance_ofLabel"}, # List of airports that are named after women, # Written by WiseWoman auf der #wmdemv 2019, # Schools between San Jose, CA and Sacramento, CA. There are two special parameters, api and endpoint, which are mandatory and identify the endpoint host (wiki) and the specific API used. What we actually want to do is find triples about Nick Kyrgios, so lets update our query to do that: This query finds any triples in Wikidata that have an object that matches the English language string "Nick Kyrgios". give you this: Popular surnames among humans creates another nice bubble chart. The following query does this: Thats all the data that we want to extract for now, but if we wanted to get more stuff it wouldnt be too difficult to extend our query. Q&A for work. wdq psearch -g es parte # search property 'parte' in Spanish. Wikidata offers a query service for integrations. So there are two triples that find Nick. Bob DuCharme GitHub Gist: instantly share code, notes, and snippets. The examples for counting instances at query.wikidata.org (and elsewhere) use the wdt:P31/wdt:P279* property path. WHERE Why is the eastern United States green if the wind moves from west to east? The SPARQL query service/query optimization page also describes how adding an explain keyword to the query URL will get you a report on how it parses and optimizes your query. The problem is that weve returned country names in every single language when actually we only want the English version. The Wikidata Query Service provides a way to also ask for a label in a specified language: With the addition of the request for the label, the query now returns the same 10 . #This solution only works if the number of items returned by wbsearchentities remains reasonable. For sample queries, I have my own queries that I use to explore a dataset, as I described in the Exploring the Data section of the Learning SPARQL chapter A SPARQL Cookbook, but the wise people behind Wikidata have done much better than this by giving us a page of sample queries that highlight some of the data and syntax available. The Even more cats, with pictures query that follows the eye color one uses an ImageGrid defaultView to create the following, finally filling the gap between SPARQL and cat pictures that has bedeviled web technology for so long: The remaining six defaultViews also look like a lot of fun. Click on the first result from the drop-down menu. Theres a lot to Wikidata. Learn more about Teams Example: Wikidata Query Service There are a bunch of examples that we can pick from, but we're going to start with something even simpler than that. For the first example in this QuickGraph, I will use a . Yes, they can answer questions, but queries can make Wikidata a much more useful, urgent, and accessible resource for everyone. . Generally only include ?item as output. If we go there, well see the following screen: There are a bunch of examples that we can pick from, but were going to start with something even simpler than that. It is a source of open data that you may want to use in your projects. What is this fallacy: Perfection is impossible, therefore imperfection should be overlooked. SELECT ?s ?desc ?linkcount (I found it pretty gutsy of this pages authors to add a Try it! link after a sample query that the page itself says will time out.) # A result is a change from the previous date if ?president's presidency ended the day before ?date. # member of Les Plus Beaux Villages de France (organisation), #sample from cywiki:Wicipedia:Merched_a_anwyd_yng_Nghymru, # OR place of birth within Wales. You can think of querying as defining a set of things youre interested in on Wikidata and learning more about those things. 14 Ok so I'm trying to get information from Wikidata about movies, take this movie for example: https://www.wikidata.org/wiki/Q24871 On the page the data is clearly displayed in a readable format, however when you trying to extract it via the API you get this: https://www.wikidata.org/w/api.php?action=wbgetentities&ids=Q24871 The syntax is similar to SQL, but it has some differences for people trained in SQL. Required fields are marked *. Could also be done by using P569 and P570 in "columns=" of Listeria's template, #LIMIT to 2000 as Listeria can only handle up to 5000, #Order by date of birth, avoid overriding this in the template with sort=, #change to OFFSET 4000 to start at the 4001th item, # Sample of scientific articles missing description in any language. Any change to the service should account for these services' existence and requirements. which cities have mayors who identify as female? wdt:P21 wd:Q6581072 ; # gender: female 1 Showcase Queries 1.1 Largest cities with female mayor 1.2 List of countries ordered by the number of their cities with female mayor 1.3 Popular surnames among humans 1.4 Given names with most variations 1.5 Popular surnames among fictional characters 1.6 Women with most sitelinks and no image born in 1921 or later 1.7 Whose birthday is today? # This query collects burial places of individuals, and sorts them in decreasing order, # All persons who have been the oldest living US ex-president with dates in chronological order, # Dates where who is oldest living expresident can change, # Find the age for all living expresidents for each value of ?date, # Find the oldest age for a living expresident for each value of ?date. Bob DuCharme's weblog, mostly on technology for representing and linking information. in greater detail when I have a better handle on it all. Maintenance: Queries can help define metrics, track progress, and evaluate item completeness. Lets start with the most important takeaway right now:querying is how a lot of people read and use Wikidata. You can also think of it as a detail about something, for example: does Wikidata have the date that architect Jeanne Gang was a MacArthur fellow? In this training we will cover. As I wrote in the Query Efficiency and Debugging chapter of Learning SPARQL, query engines often optimize for you. Examples. Enter your email address to subscribe to the Wiki Education Foundation blog and receive notifications of new posts by email. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The deployment version of the GUI is in production branch, which is cherry-picked from master branch when necessary. The project started 2012 by the Wikimedia Foundation as an effort to centralize interwiki links, info-boxes and enable rich queries. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Lets do that: We can navigate to that URI to see all the statements about Nick Kyrgios. Generating websites with SPARQL and Snowman, part 2, Generating websites with SPARQL and Snowman, part 1, Doing a podcast interview about technical writing, Taking some RDF beyond what it could do in a relational database, Wikidata's excellent sample SPARQL queries, list of the URIs represented by the prefixes in the queries, The Wikidata data model and your SPARQL queries. The Popular eye colors one demonstrates the use of Default viewsspecial comments in directives that the Wikidata Query Service understands as an indication of how to present the data. Wikidata stores data in triples of the form (subject, predicate, object), so well start with a query that returns one such triple: http://creativecommons.org/publicdomain/zero/1.0/. FILTER (?born >= "1921-01-01T00:00:00Z"^^xsd:dateTime) . (Before you get too far into the list of queries, note that the RDF Dump Format documentation page, which I will describe more next time, has a list of the URIs represented by the prefixes in the queries.). Each different kind of query will include example queries that demonstrate everything you can get out of Wikidata. Consider adding a comment in the query noting what it illustrates, when and by whom it was written and which are its limitations given the current data and use of properties at Wikidata. If he had met some scary fish, he would immediately return to the surface. The Wikidata Query Service uses the SPARQL query language. * The tag cloud pop-up is half off-screen for me, and I cannot move it to be fully visible (Firefox, Linux). Translations in context of "Wikidata API" in German-English from Reverso Context: ber die Wikidata API kann ermittelt werden, welches Wikidata Item zu dieser Kategorie gehrt, sowie welche Kategorie aus Wikimedia Commons dazu passt. Asking for help, clarification, or responding to other answers. How can I use a VPN to access a Russian website that is banned in the EU? Add a new light switch in line with another switch? Notify me of follow-up comments by email. The Music Genres query after that is similar. Watch this space. #Interesting maintenance query that shows the relative prominence of a country's current (living) population on Wikidata. Listeria will add more information from that item. # but MINUS or negate any of those things that are instances of human. WikidataQueryServiceR 1.0.0. The examples for counting instances at query.wikidata.org (and elsewhere) use the wdt:P31/wdt:P279* property path. Filter out results that don't fulfill this. I previously worked on graph analytics at Neo4j, where I also I co-authored the O'Reilly Graph Algorithms Book with Amy Hodler. Is it appropriate to ignore emails from a student asking obvious questions? are included. Japanese girlfriend visiting me in Canada - questions at border control? I thought this was the search button or something. Well done. Samples suitable for Listeria. # ?valuenode wikibase:geoLongitude ?lon. I think youll agree, queries can tell us a lot more than just facts. We can fix that by changing the fields returned in our SELECT statement, or we could use the [] operator to go from the person to country name in one statement, without needing to bind the country variable. WikidataQueryServiceR is a R library that targets Wikidata Query Service (WDQS), the official SPARQL endpoint of Wikidata. Atom feed (summarized entries) Is it possible to hide or delete the new Toolbar in 13.1? # It demonstrates collecting individual attributes and concatenating them for easier post processing. Will and Reema, Sending kudos for this and your recent posts that are so informative and useful re: Wikidata. # You may open a separate column ?valUrl if you need also the IRI, # Please advise, if there is an option to put the Q-Number and/or the Language. Wikidata is a collaboratively edited knowledge base. I want to look up information about tennis players, and one of my favourite players is Nick Kyrgios, so this blog post is going to be all about him. A hrlevelek 2021 augusztusig a Wikipdia:Wikidata-segtsgkrs lapon voltak olvashatk, a kzssg krsre helyeztk t erre a lapra. #Interesting maintenance query that shows the relative prominence of a country's current (living) population on Wikidata. A hrleveleket automatikusan teszi kzz MediaWiki message delivery robot. It can be customized by creating a custom-config.json in the repository's root dir. To learn more, see our tips on writing great answers. The GUI source is in wikidata/query/gui project and is the submodule of the main project. The Children of Ghengis Khan sample query uses the Graph defaultView to display Khans children and grandchildren, with images of them when available, in a graph that lets you zoom and drag nodes around. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. At what point in the prequels is it revealed that Palpatine is Darth Sidious? Connect and share knowledge within a single location that is structured and easy to search. how many female geneticist have Wikipedia articles, This query shows the most commonly used properties for describing cities, where that thing lives in this hierarchy, This query shows which properties have the most constraints, you can write queries that can tell you all about how properties relate to each other, Another successful Wikidata Project with UVA, Learn from each other: journal article walks through Wikipedia assignment, Grad student wins Outstanding Teaching Award for Wikipedia assignment, Ensuring pop culture articles on Wikipedia include the latest in disability research, Integrating student interests and career aspirations with coursework. Additional variables from the query could also be used in the lists. } }, # with a P6 (head of goverment) statement, # where the ?mayor has P21 (sex or gender) female, # but the statement has no P582 (end date) qualifier, # Now select the population value of the ?city, # (wdt: properties use only statements of "preferred" rank if any, usually meaning "current population"). But were still returning the URI for Australia when we only want the country name. Many of the examples also work in {{Wikidata list}}template calls parsed by the Listerbot, which however requires the ?itemfield variable to be selected. I look forward to trying out several approaches you offer, and the raised eyebrows that will follow as I glean the results. For sample queries, I have my own queries that I use to explore a dataset, as I described in the "Exploring the Data" section of the Learning SPARQL chapter "A SPARQL Cookbook", but the wise people behind Wikidata have done much better than this by giving us a page of sample queries that highlight some of the data and syntax available. Making statements based on opinion; back them up with references or personal experience. As much as Id like to keep playing with of the sample queries, Im going to dig into the Wikidata data model and its mapping to RDF next. To really learn about how Wikidata executes SPARQL queries, the SPARQL query service/query optimization page provides good background on how Blazegraph, the triplestore and query engine that Wikidatas SPARQL endpoint uses, goes about executing the queries. ), # ?parts are those listed on item Q104285 with property P527, #for display in the list, extract yob/yod. wdt:P569 ?born . With more than 79 million items, . NOTE: You must be a logged-in user in order to run these Commons SPARQL queries. Features: Map (Q24515275), wikibase:box (Q26211169), wikibase:box with West and East corners (Q26211177). Wikidata is a free and collaborative Linked Open Data (LOD) knowledge base which can be edited by humans and machines. SPARQL Query Examples, Wikidata property statement and property direct, Fast publication date lookup with Wikidata Query Service, wikidata query missing out countries in Europe. The query service can be accessed by navigating to query.wikidata.org Ready to optimize your JavaScript with Rust? Connect and share knowledge within a single location that is structured and easy to search. Cheers, Markus On 10.12.2015 17:12, Jonas Kress wrote: Why does my stock Samsung Galaxy phone/tablet lack some features compared to other Samsung Galaxy models? # - The list is ordered numerically by property number. Even if you can't tell SPARQL from a sprocket wheel, there are lots of example queries with interesting visualizations that you can runjust look for "Examples" at the top of the page at query.wikidata.org. TheWikidata Query Service(WDQS) is one of the most effective and efficient ways to help you make sense of all that data on Wikidata. # - That means you will also get properties as birth date, alphanumeric identifier and so on. This page lists uses of Wikidata Query Service inside Wikimedia Foundation projects. Ill describe the resources available for this (and the ontology!) For example, the number of humans in Wikidata: SELECT (COUNT(?item) AS ?count) To me this issue means that the list of examples is simply too long, and instead of working around it by loading the examples from an ever-increasing list of pages, we should decide which queries we actually want to show on query.wikidata.org, and only include those on the main example page. Along comes Wikidata Query Service. # Demonstrates how to turn off the optimizer and start with the lowest number of edges first. { Examples. Configuration. Your email address will not be published. # ?statementnode psv:P625 ?valuenode. If youre new to querying, thats great! These queries show the power and functionality of SPARQL and WDQS GUI. One piece of information that wed like to extract is his date of birth: We can see from this screenshot that date of birth can be accessed via the property P569. In this QuickGraph, I will show how to use the Wikidata Query Service to get data into Neo4j. Your email address will not be published. The API endpoints are pre-defined in configuration; see below. Access Wikidata Query Service via command line to perform SPARQL queries ( query mode), lookup entities ( lookup ), or search items and properties ( search or psearch ): wdq -g en solar system # search 'solar system' in English. Is it cheating if the proctor gives a student the answer key by mistake and the student doesn't report it? Examples of frauds discovered because someone tried to mimic a random sequence, Penrose diagram of hypothetical astrophysical white hole, If you see the "cross", you're on the right track. rev2022.12.9.43105. Many of the examples also work in template:Wikidata list template calls parsed by the Listeriabot, which however requires the ?item field variable to be selected.. I'm currently working on real-time user-facing analytics with Apache Pinot at StarTree. The query tends to time out when using all countries at once, but it might be possible to get the figures for each individual country by using uncommenting . don't use the wdt:P31/wdt:P279* property path. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. how to use the Wikidata Query Service (WDQS) how to find SPARQL query examples; how to generate query visualizations }. ?c p:P6 ?mayor. }"} Their methods for doing so are how these query engines try to distinguish themselves from each other, so learning more about the one that youre using is worth it when youre dealing with large-scale data like Wikidata. To do this well construct the predicate wdt:P569, where: In line with the SPARQL model of everything as a triple, the wdt: namespace contains manifestations of properties as simple predicates that can directly connect an item to a value. Find centralized, trusted content and collaborate around the technologies you use most. This query returns the entity representing Australia, but what if we want to return the name of that page rather than the URI? # This query collects data related to entities on Barbara Harris. so that entities that are a subclass of human (I don't think this type exists, but think "nobel laureate", etc.) #which in turn can now query the graph in a timely manner and filter those entities that are not humans. Thanks, nice. The eye color querys directive of #defaultView:BubbleChart means that running the query on https://query.wikidata.org will (quickly!) The Recent Events query nicely demonstrates how Wikidata models time and how a query can use that to identify events with a particular time windowin this case of this sample query, between 0 and 31 days ago. Take one of our Wikidata Institute courses: wikiedu.org/wikidata. Where do Mayors Come From? Last month I finally got to know Wikidata more and saw that it has a lot of great stuff to explore. Querying Wikidata: SPARQL. Semantic integration is the process of interrelating information from diverse sources, for example calendars and to do lists, email archives, presence information (physical, psychological, and social), documents of all sorts, contacts (including social graphs), search results, and advertising and marketing relevance derived from them.In this regard, semantics focuses on the organization of and . Input a valid SPARQL query or choose an example query. This post will explore how you can use different kinds queries to get the most out of your Wikidata experience. SPARQL query service/queries/examples/advanced, List of countries ordered by the number of their cities with female mayor, Popular surnames among fictional characters, Women with most sitelinks and no image born in 1921 or later, Data of Barbara Harris - Grouped per item, People who have been buried in multiple places, All oldest living US ex-presidents in chronological order, Persons and institutions related in some way to Russian politics, Values of uses (P2283) in scholarly articles, Timeline of compositions by Wolfgang Amadeus Mozart, Firearms cartridges and which they are based on, Groups of characters in the Marvel universe, Population of countries sharing a border with Germany, Population of countries sharing a border with Cameroon, Battles per year per country last 80 years, Battles per year per continent and country last 80 years (animated), Bar chart of paintings produced per year by Piet Mondrian, Bar chart with ratio of male / female creators for public art in city of Nijmegen, the Netherlands, Continents, countries, regions and capitals, Viennese composers and their compositions by tonality, Famous people categorised into eye and hair color, Calendar of birth dates of women who studied at the University of Oxford, Samples with coordinates to illustrate maps, Schools between San Jose, CA and Sacramento, CA, Big cities, grouped into map layers by population, Basic map of U1 subway stations in Berlin, Advanced map of Stockholm metro (Q272926), Distribution of names of human settlements ending in "-ow" or "-itz" in Germany, Locations of archaeological sites, with images, Locations of castles that are also archaeological sites, All museums (including subclass of museum) in Washington, D.C. with coordinates, Map of museums in the Netherlands with a color indicating if they accept the Museumkaart (Q2237462), Map of disasters, color-coded by disaster type, Monuments and other heritage items located 1 km around the users location, Map of newspapers in the United States by presence of Infobox newspaper in their English Wikipedia article, Women born in Wales without an article in Welsh for Listeria, Scientific articles without any description, Filter labels using EntitySearch from mwapi service to provide Full Text Search, Using mwapi to base a query on articles in a Wikipedia category, Find statements with references containing external links to wipo.int, Find metadata like artist and license for an image, Getting pageviews for all articles in a category, Get OpenStreetMap top level properties of Helsinki University main building, Get OpenStreetMap nodes with inarisami label in wikipedia but without inarisami label in OSM, The best ranked properties and values of a given item, #TEMPLATE={"template":"Largest ?c with ?sex head of government","variables":{"?sex":{"query":" SELECT ?id WHERE { ?id wdt:P31 wd:Q48264 . } This file can be used to override any of the default settings obtained from default-config.json.. Run tests Irreducible representations of a product of two groups. # ?valuenode wikibase:geoLatitude ?lat. ), or is the subclass property path not actually needed in these cases and I'm too dense to see why? You dont have to worry about concerning yourself witheverythingthats on Wikidata just the things and relationships youre interested in. Since version 1.0.0, this library also provides a function named get_example to get queries from the examples page. GROUP BY ?id "} } }, #TEMPLATE={ "template": "The top 10 heaviest ?type ", "variables": { "?type": { "query": "SELECT DISTINCT ?id WHERE { ?i wdt:P2067 ?v. Are these generally oversights (or perhaps done for speed? # By User:Ainali with the help of User:Dipsacus fullonum 2021-02, # Safeguard to not get a timeout from unbound items when using ?item below, #title: Find statements with references containing external links to wipo.int, # Description: Find item statements with references containing external links to wipo.int using http and https protocols, #title: Find metadata like artist and license for an image, # Change here to select any other image, by changing item and property, # The following line transforms the image to be used in the Commons API, "http://commons.wikimedia.org/wiki/Special:FilePath/", # Below is the call to the Wikimedia Commons API, "imageinfo/ii/extmetadata/LicenseShortName/@value", "imageinfo/ii/extmetadata/LicenseUrl/@value", #title: Getting pageviews for all articles in a category, # To change language version first change here, # then also change to the same language here, # How many days back in time to get the pageviews for, #Combine the Wikidata Query Service and the OpenStreetMap Sophox query service, , , , , , , #Get information of Europeana item using federated query, , , , , #Get share of renewable energy in electricity using Federated query, # Read share of renewable energy in electricity in EU countries from http://semantic.eea.europa.eu, # and populate the result with finnish and inari sami labels from Wikidata, , , , , ?Share_of_renewable_energy_in_electricity, # Route query through zbw.eu as semantic.eea.europa.eu is not visible to query.wikidata.org, , , # And populate the result with finnish and inari sami labels and flag from Wikidata, # Filter out Kingdom Denmark and Kingdom of Netherlands, # Get OpenStreetMap nodes with inarisami label in wikipedia but without inarisami label in OSM, # title: The best ranked properties and values of a given item, # Based on the "winwaed"'s answer on Stack Overflow: https://stackoverflow.com/questions/56486888/how-to-get-property-labels-from-wikidata-using-sparql, Last edited on 1 September 2022, at 13:57, Values of "uses" used in scholarly articles, contains the administrative territorial entity (P150), located in or next to body of water (P206), wikibase:box with West and East corners (Q26211177), https://www.wikidata.org/w/index.php?title=Wikidata:SPARQL_query_service/queries/examples/advanced&oldid=1718705433, Creative Commons Attribution-ShareAlike License, integrates a text search for the template's name using the MediaWiki API into a SPARQL query. Some queries that no longer work were moved to a subpage - they need to be updated to use Wikidata federation service instead of assuming that all Wikidata data is present in the same database. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Wikidata Query Service - Bug on the 'Whose birthday is today?' And thanks to Jesus for his help with understanding the SPARQL syntax enough to get my queries working. ?s wdt:P31 wd:Q5 ; # human I publish short 5 minute videos showing how to solve data problems on YouTube @LearnDataWithMark. One of the nice things about trying examples in the Wikidata Query Service web interface is that there is also an option to render the list of results as a map. #Combine the Wikidata Query Service and the Mediawiki API, #https://www.mediawiki.org/wiki/Wikidata_Query_Service/User_Manual/MWAPI. ?item wdt:P31/wdt:P279* wd:Q5 . If you're working on a project you can have a query that focuses on a set of statements. Production branch should not contain test & build service files (which currently means some cherry-picks will have to be manually merged). For 1) completeness and if 2) the types are not materialized you'd always have to use the path. If we run this query, well get the following results: https://en.wikipedia.org/wiki/Nick_Kyrgios, http://www.w3.org/2000/01/rdf-schema#label. Youll also be able to modify and save them yourself to better understand how they work. #Show firearms cartridges and which they are based on, #graph rendering could be slow due to large number of results, # male/female population _must_ not be added unqualified as total population (! Input a valid SPARQL query or choose an example query. Is it correct to say "The glue on the back of the sticker is dying down so I can not stick the sticker to the wall"? Consider adding a comment in the query noting what it illustrates, when and by whom it was written and which are its limitations given the current data and use of properties at Wikidata. How to set a newcommand to be incompressible by justification? Although its important to comprehend whats happening on the item-level on Wikidata, most community members are concerned with the relationship among all of these items (nearly 100 million as of September 2021). Teams. cURL examples to query Wikidata. Thanks for contributing an answer to Stack Overflow! Ive continued to explore the data and its model using two strategies: exploring the ontology built around the data and playing with the sample queries. Here are some that I particularly liked after my brief tour: The second example query, for data about Horses, is a good example of the excellent commenting that you will find in many of the sample queries. I think well filter our query further to keep the one that returns a Wikidata URI, which means that we need to update the predicate in our query to be rdfs:label. All structured data from the main, Property, Lexeme, and EntitySchema namespaces is available under the. The query tends to time out when using all countries at once, but it might be possible to get the figures for each individual country by using uncommenting . Queries can serve many purposes and express many, detailed aspects of Wikidata. The following list will provide you with some different styles of queries written for specific, applied purposes. Take note of the item number for "dog" from the Wikidata page that opens (Q144) To change your query from "cat" to "dog", simply replace Q146 by Q144 in the SPARQL query editor. Wikimedia projects using WDQS[ edit] Other tools[ edit] This section should eventually find better place, for now this is the list of related tools: http://tools.wmflabs.org/wdq2sparql/w2s.php - WDQ to SPARQL translator How long does it take to fill up the tank? ?sub wdt:P31 ?id. } A more concise version is shown below: Next wed like to pull in the country of citizenship, which is property P27. #(which is backed by Elasticsearch) to perform very fast searching of entities by their label. Ha szeretnl rteslni az j hrekrl, vedd fel ezt a lapot a kedvenceid kz. On the Wikidata Query Service, all Wikimedia sites are allowed (all Wikipedia language editions, Wikimedia Commons, Wikidata itself, etc.). Wikidata offers a query service for integrations. "},"?c":{"query":"SELECT DISTINCT ?id WHERE { ?c wdt:P31 ?id. Run the program, and you will be presented with a list of all the famous and infamous dogs on the Internet. # This query can be used with PetScan to work on items that are normally not queryable because of timeouts on query.wikidata.org. wdq P361 Q544 # lookup properties and items. # Optionally, find English labels for city and mayor: # If available, get the "ru" label of the country, use "en" as fallback: # In addition to the original query this one comes with some advantages: # - You will get only literals as results, (even if the values are stored as IRI in wikibase). These queries are mostly useful for developing bots and external services. This page was last edited on 1 September 2022, at 13:57. Why would Henry want to close the breach? It is a powerful language to query Linked data and we can also use it to query Wikidata. # people and institutions that have the affiliation attribute assigned to Russia, #TEMPLATE={"template":"Overall causes of death ranking of ?thing ","variables":{"?thing": {"query":"SELECT ?id (COUNT(?id) AS ?count) WHERE { ?sub wdt:P509 ?y. Wikidata stores data in triples of the form (subject, predicate, object), so we'll start with a query that returns one such triple: SELECT * WHERE { ?subject ?predicate ?object } LIMIT 1 The data source. # ?item p:P625 ?statementnode. Many of the examples also work in {{Wikidata list}}template calls parsed by the Listerbot, which however requires the ?itemfield variable to be selected. Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Well, you're absolutely correct. It provides a simple function query_wikidata that returns the results of a query. (So P19 comes before P100). 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Provides a function named get_example to get queries from the query example dialog BubbleChart means running... Uses the SPARQL syntax enough to get the following list will provide you with different. When I have a better handle on it all that focuses on wikidata query examples set of statements, at 13:57 well... The Vermeer paintings it appropriate to ignore emails from a student asking obvious questions parts. Country & # x27 ; s current ( living ) population on Wikidata the... Accessed by navigating to query.wikidata.org Ready to optimize your JavaScript with Rust ; parte & # x27 existence...: https: //query.wikidata.org will ( quickly! a function named get_example to get the most out of Wikidata by... Apache Pinot at StarTree creates another nice bubble chart run these Commons SPARQL queries Combine! The relative prominence of a country & # x27 ; s current ( living ) population on just... The student does n't report it SPARQL endpoint of Wikidata into Neo4j well, you absolutely... 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