Wikidata:SPARQL query service/queries/examples

This page is parsed by the web interface of the query service to fill the query example dialog. Many of the examples also work in {{Wikidata list}} template calls parsed by the Listerbot, which however requires the ?item field variable to be selected.

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.

Some queries did not fit here because of technical restrictions:

See also

Simple queries

These basic queries help to understand SPARQL and the Wikibase RDF format.

Cats

SELECT ?item ?itemLabel 
WHERE 
{
  ?item wdt:P31 wd:Q146. # Must be of a cat
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". } # Helps get the label in your language, if not, then en language
}
Try it!

Goats

SELECT ?item ?itemLabel 
WHERE 
{
  ?item wdt:P31 wd:Q2934.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!

Horses (showing some info about them)

#Illustrates optional fields, instances of subclasses, language fallback on label service, date to year conversion
#title: Horses on Wikidata
SELECT DISTINCT ?horse ?horseLabel ?mother ?father (year(?birthdate) as ?birthyear) (year(?deathdate) as ?deathyear) ?genderLabel
WHERE
{
  ?horse wdt:P31/wdt:P279* wd:Q726 .     # Instance et sous-classes de Q726-Cheval
   
  OPTIONAL{?horse wdt:P25 ?mother .}       # P25  : Mère
  OPTIONAL{?horse wdt:P22 ?father .}       # P22  : Père
  OPTIONAL{?horse wdt:P569 ?birthdate .} # P569 : Date de naissance
  OPTIONAL{?horse wdt:P570 ?deathdate .}     # P570 : Date de décès
  OPTIONAL{?horse wdt:P21 ?gender .}       # P21  : Sexe
 
  SERVICE wikibase:label { #BabelRainbow
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],fr,ar,be,bg,bn,ca,cs,da,de,el,en,es,et,fa,fi,he,hi,hu,hy,id,it,ja,jv,ko,nb,nl,eo,pa,pl,pt,ro,ru,sh,sk,sr,sv,sw,te,th,tr,uk,yue,vec,vi,zh"
  }
}
ORDER BY ?horse
Horses on Wikidata

Cats, with pictures

#defaultView:ImageGrid
SELECT ?item ?itemLabel ?pic
WHERE
{
?item wdt:P31 wd:Q146 .
?item wdt:P18 ?pic
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
Try it!

Map of hospitals

#added 2017-08
#defaultView:Map
SELECT distinct * WHERE {
  ?item wdt:P31/wdt:P279* wd:Q16917;
        wdt:P625 ?geo .
}
Try it!

Map of hackerspaces

#added 2021-12
#defaultView:Map
SELECT distinct * WHERE {
  ?item wdt:P31 wd:Q1032372;
        wdt:P625 ?geo .
}
Try it!

Number of humans in Wikidata

Using the count function

#title: Number of humans in Wikidata
SELECT (COUNT(*) AS ?count)
WHERE {
  ?item wdt:P31 wd:Q5 .
}
Number of humans in Wikidata

Humans without children

In the simplest form:

#Demonstrates "no value" handling
#title: Humans without children
SELECT ?human ?humanLabel
WHERE
{
  ?human wdt:P31 wd:Q5 .       #find humans
  ?human rdf:type wdno:P40 .   #with at least one truthy P40 (child) statement defined to be "no value"
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
Humans without children

A similar query which also gives non-truthy "no value" statements:

SELECT ?human ?humanLabel 
WHERE
{
  ?human wdt:P31 wd:Q5 .         #find humans
  ?human p:P40 ?childStatement . #with at least one P40 (child) statement
  ?childStatement rdf:type wdno:P40 .   #where the P40 (child) statement is defined to be "no value"
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" . }
}
Try it!

Humans born in New York City

This example highlights the correct way to use the P19 property, and by extension the P20 property. P19 is the most specific known place of birth. For example, it is known that Donald Trump (Q22686) was born in the Jamaica Hospital (Q23497866). Therefore, he wouldn't show up in the first query.

Incorrect way:

select distinct ?item ?itemLabel ?itemDescription ?sitelinks where {
    ?item wdt:P31 wd:Q5;  # Any instance of a human.
          wdt:P19 wd:Q60;  #  Who was born in New York City.
# Note. Doesn't include humans with the birth place listed as a hospital
# or an administrative area or other location of New York City.
# Only humans listed as born in New York City. 
             wikibase:sitelinks ?sitelinks.
   
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en,nl" }
}
ORDER BY DESC(?sitelinks)
Try it!

Correct way:

#title: Humans born in New York City
select distinct ?item ?itemLabel ?itemDescription ?sitelinks where {
    ?item wdt:P31 wd:Q5;  # Any instance of a human.
          wdt:P19/wdt:P131* wd:Q60;  #  Who was born in any value (eg. a hospital)
# that has the property of 'administrative area of' New York City or New York City itself.
             wikibase:sitelinks ?sitelinks.
   
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en,nl" }
}
ORDER BY DESC(?sitelinks)
Humans born in New York City

Humans who died on a specific date on the English Wikipedia, ordered by label

SELECT ?item ?articlename ?itemLabel ?itemDescription ?sl
WHERE {
   VALUES ?dod {"+2001-08-25"^^xsd:dateTime}
    ?dod ^wdt:P570 ?item .
    ?item wikibase:sitelinks ?sl .
    ?item ^schema:about ?article .
    ?article schema:isPartOf <https://en.wikipedia.org/>;
    schema:name ?articlename .
  SERVICE wikibase:label
    {
      bd:serviceParam wikibase:language "en" .
      ?item rdfs:label ?itemLabel .
      ?item schema:description ?itemDescription .
    }
  BIND(REPLACE(?itemLabel, "^.*(?<! [Vv][ao]n| [Dd][aeiu]| [Dd][e][lns]| [Ll][ae]) (?!([SJ]r\\.?|[XVI]+)$)", "") AS ?sortname)  
} ORDER BY ASC(UCASE(?sortname)) ASC(UCASE(?itemLabel))
Try it!

Items with a Wikispecies sitelink

#illustrates sitelink selection, ";" notation
#title: Items with a Wikispecies sitelink
SELECT ?item ?itemLabel ?article
WHERE
{
  ?article  schema:about ?item ;
      schema:isPartOf <https://species.wikimedia.org/> .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
LIMIT 200
Items with a Wikispecies sitelink

Items about authors with a Wikispecies page

#title: Items about authors with a Wikispecies page
SELECT ?author ?authorLabel (COUNT(?paper) AS ?count)
WHERE
{
  ?article  schema:about ?author ;
      schema:isPartOf <https://species.wikimedia.org/> .
    ?author wdt:P31 wd:Q5.
    ?paper wdt:P50 ?author.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
GROUP BY ?author ?authorLabel
ORDER BY DESC(?count)
LIMIT 200
Items about authors with a Wikispecies page

Recent events

#title: Recent events
SELECT ?event ?eventLabel ?date
WHERE
{
  # find events
  ?event wdt:P31/wdt:P279* wd:Q1190554.
  # with a point in time or start date
  OPTIONAL { ?event wdt:P585 ?date. }
  OPTIONAL { ?event wdt:P580 ?date. }
  # but at least one of those
  FILTER(BOUND(?date) && DATATYPE(?date) = xsd:dateTime).
  # not in the future, and not more than 31 days ago
  BIND(NOW() - ?date AS ?distance).
  FILTER(0 <= ?distance && ?distance < 31).
  # and get a label as well
  OPTIONAL {
    ?event rdfs:label ?eventLabel.
    FILTER(LANG(?eventLabel) = "en").
  }
}
# limit to 10 results so we don't timeout
LIMIT 10
Recent events

Popular eye colors among humans

#title:Popular eye colors among humans
#illustrates bubblechart view, count

#defaultView:BubbleChart
SELECT ?eyeColorLabel (COUNT(?human) AS ?count)
WHERE
{
  ?human wdt:P31 wd:Q5.
  ?human wdt:P1340 ?eyeColor.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
GROUP BY ?eyeColorLabel
Popular eye colors among humans

Humans whose gender we know we don't know

#title: Humans whose gender we know we don't know 
# Demonstrates filtering for "unknown value"
SELECT ?human ?humanLabel
WHERE
{
  ?human wdt:P21 ?gender .
  FILTER wikibase:isSomeValue(?gender)
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
Humans whose gender we know we don't know

URLs of Wikipedia in all languages

This query provides an alternative to scraping the Wikipedia.org portal page and various lists/tables of Wikipedias that are out there. (The sitematrix API is another alternative.)

#title: URLs of Wikipedia in all languages
SELECT ?wikipedia WHERE {
  ?wikipedia wikibase:wikiGroup "wikipedia".
}
URLs of Wikipedia in all languages

Names of Wikipedia articles in multiple languages

The query retrieves Wikipedia article names (in the main namespace) in various languages for the given Q identity. Labels are returned instead of real article names.

SELECT DISTINCT ?lang ?name WHERE {
  ?article schema:about wd:Q5 ;
              schema:inLanguage ?lang ;
              schema:name ?name ;
              schema:isPartOf [ wikibase:wikiGroup "wikipedia" ] .
  FILTER(?lang in ('en', 'uz', 'ru', 'ko')) .
  FILTER (!CONTAINS(?name, ':')) .
}
Try it!

All items with a property

# Sample to query all values of a property
# Property talk pages on Wikidata include basic queries adapted to each property
SELECT
  ?item ?itemLabel
  ?value ?valueLabel
# valueLabel is only useful for properties with item-datatype
WHERE 
{
  ?item wdt:P1800 ?value
  # change P1800 to another property        
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
# remove or change limit for more results
LIMIT 10
Try it!

Wikidata items of Wikipedia articles

#Returns a list of Wikidata items for a given list of Wikipedia article names
#List of Wikipedia article names (lemma) is like "WIKIPEDIA ARTICLE NAME"@LANGUAGE CODE with de for German, en for English, etc.
#Language version and project is defined in schema:isPartOF with de.wikipedia.org for German Wikipedia, es.wikivoyage for Spanish Wikivoyage, etc.

SELECT ?lemma ?item WHERE {
  VALUES ?lemma {
    "Wikipedia"@de
    "Wikidata"@de
    "Berlin"@de
    "Technische Universität Berlin"@de
  }
  ?sitelink schema:about ?item;
    schema:isPartOf <https://de.wikipedia.org/>;
    schema:name ?lemma.
}
Try it!

Total population in the Øresund Region

#title: Total population in the Øresund Region
# Illustrates the SUM aggregate function

SELECT distinct ?area ?areaLabel (sum(?folkm_ngd) as ?total_folkm) # the first two variables can be removed
                                                                   # if only the number is needed
WHERE {
  ?item wdt:P361 wd:Q297853. # part of (P361) Øresund Region (Q297853)
  ?item wdt:P1082 ?folkm_ngd. # population (P1082)
  ?area wdt:P31 wd:Q1907114. # instance of (P31) metropolitan area (Q1907114)
  ?area wdt:P527 ?item. # has part (P527)
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
group by ?area ?areaLabel
Total population in the Øresund Region

Mayors that are any kind of domesticated animal

#title: Mayors that are any kind of domesticated animal
SELECT ?image ?speciesLabel ?mayorLabel ?placeLabel WHERE {
  ?species wdt:P279* wd:Q622852 .
  ?mayor wdt:P31 ?species . 
 
  ?mayor p:P39 ?node .
  ?node ps:P39 wd:Q30185 .
  ?node pq:P642 ?place .
  optional{?mayor wdt:P18 ?image}
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Mayors that are any kind of domesticated animal


Mayors that are either a dog, a cat or a chicken

Illustrates the VALUES clause.

SELECT ?image ?speciesLabel ?mayorLabel ?placeLabel WHERE {
  VALUES ?species {wd:Q144 wd:Q146 wd:Q780}
  ?mayor wdt:P31 ?species .
  ?mayor p:P39 ?node .
  ?node ps:P39 wd:Q30185 .
  ?node pq:P642 ?place .
  optional{?mayor wdt:P18 ?image}
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!


Lexeme queries

Swedish lexemes missing in SAOB

#title:Swedish lexemes that are missing in the biggest official printed Swedish dictionary SAOB.
#date: 2021-10-12
#author:So9q
select ?lemma
WHERE {
  ?lexemeId dct:language wd:Q9027;
            wikibase:lemma ?lemma;
            wdt:P9660 wd:Q1935308.
}
Swedish lexemes that are missing in the biggest official printed Swedish dictionary SAOB.

Forms in Swedish that have no example demonstrating them

#title:Forms in Swedish that have no example demonstrating them
# 2021-08-06
select ?form ?lemma
WHERE {
  ?lexemeId dct:language wd:Q9027;
            wikibase:lemma ?lemma;
            ontolex:lexicalForm ?form.
  MINUS {
  ?lexemeId p:P5831 ?statement.
  ?statement ps:P5831 ?example;
             pq:P6072 [];
             pq:P5830 ?form_with_example.
  }
}
Forms in Swedish that have no example demonstrating them

Lemmatize a word in English

#title:Lemmatize a word in English
# Author: So9q
# 2021-07-25
# inspired by https://sinaahmadi.github.io/posts/10-essential-sparql-queries-for-lexicographical-data-on-wikidata.html
SELECT DISTINCT ?l ?word ?lemma WHERE {
  VALUES ?word {'bought'@en} 
  ?l a ontolex:LexicalEntry ; 
       dct:language wd:Q1860 ; 
       wikibase:lemma ?lemma ; 
       ontolex:lexicalForm ?form .
  ?form ontolex:representation ?word .
}
Lemmatize a word in English

The Swedish alphabet

#title:The Swedish alphabet
# Author: So9q
# 2021-07-22
select ?lexemeId ?lemma WHERE {
  ?lexemeId dct:language wd:Q9027;
            wikibase:lemma ?lemma.
  ?lexemeId wikibase:lexicalCategory wd:Q9788
}
ORDER BY ?lemma
The Swedish alphabet

Danish idioms

#title:Danish idioms
# Author: So9q 
# Date: 2021-04-11
SELECT ?l ?lemma  WHERE {
  ?l dct:language wd:Q9035; # Danish (Q9035)
     wikibase:lemma ?lemma;
     wikibase:lexicalCategory wd:Q184511. # idiom (Q184511)
}
Danish idioms

All forms in Swedish missing a pronunciation for the form with a representation identical to the lemma of the lexeme

#title:All forms in Swedish missing a pronunciation for the form with a representation identical to the lemma of the lexeme
# So9q 13-01-2021
SELECT ?l ?lemma ?form ?audio WHERE {
  ?l dct:language wd:Q9027;
     wikibase:lemma ?lemma; 
     ontolex:lexicalForm ?form .
  ?form ontolex:representation ?lemma .
  minus {?form wdt:P443 ?audio.}
}
All forms in Swedish missing a pronunciation for the form with a representation identical to the lemma of the lexeme

Lexemes in English that match an expression

# Lexemes in English that match an expression
select ?lexemeId ?lemma WHERE {
  ?lexemeId dct:language wd:Q1860;
            wikibase:lemma ?lemma.
  # only those lemmas that begin with "pota", i.e. "potato"
  FILTER (regex(?lemma, '^pota.*'))
}
Try it!

Lexemes in Swedish with usage example that demonstrates both a form and a sense

#Lexemes in Swedish with usage example that demonstrates both a form and a sense
# So9q 23-12-2020
select ?lexemeId ?lemma ?example 
WHERE {
  ?lexemeId <http://purl.org/dc/terms/language> wd:Q9027;
            wikibase:lemma ?lemma.
  ?lexemeId p:P5831 ?statement.
  ?statement ps:P5831 ?example;
             pq:P6072 [];
             pq:P5830 [].
}
Try it!

Pictures of noun lexemes in English (picture dictionary à la Wikidata)

# Lexemes in English with picture and description fetched from the concept Q-item
# NB: when 2 or more pictures occur for the same lemma a preferred rank is missing on the Q-item. 
# Please fix that if you know how.
# by So9q
#defaultView:ImageGrid
select distinct ?lexemeId ?lemma ?q_concept ?q_conceptDescription ?picture 
WHERE {
  ?lexemeId dct:language wd:Q1860;
            wikibase:lemma ?lemma;
            ontolex:sense ?sense.
  ?sense wdt:P5137 ?q_concept.
  ?q_concept wdt:P18 ?picture.
  # if you wish to only browse certain items you can insert a FILTER 
  # regular expression here, like in the example above.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
order by lcase(?lemma) # order a-z
Try it!

German picture dictionary for young children

# German picture dictionary for young children
# NB: when 2 or more pictures occur for the same lemma a preferred rank is missing on the Q-item. 
# Please fix that if you know how.
# If any inapproriate terms show up it is probably because the sense is missing a correct P5137
# by So9q
#defaultView:ImageGrid
select distinct ?lexemeId ?lemma ?q_concept ?q_conceptDescription ?picture 
WHERE {
  ?lexemeId dct:language wd:Q188; # change language here
            wikibase:lemma ?lemma;
            ontolex:sense ?sense.
  ?sense wdt:P5137 ?q_concept.
  ?q_concept wdt:P18 ?picture.
  ############
  # Exclusions
  ############
  # Exclude out of scope concepts
  MINUS {?q_concept wdt:P31 wd:Q3624078.}. # countries
 
  # Exclude non suitable concepts
  VALUES ?minus {
  wd:Q47092 # rape
  wd:Q198   # war
  wd:Q124490 # violence
  wd:Q170382 # revolver
  wd:Q1576   #cigar
  #... add yours here
  }.
  MINUS {?sense wdt:P5137 ?minus.}.
  
  # Exclude senses not suitable for young children:
  VALUES ?filter {
  wd:Q8102
  wd:Q545779
  wd:Q1521634
  wd:Q184439}.
  FILTER NOT EXISTS {?sense wdt:P6191 ?filter.}.
  # if you wish to only browse certain items you can insert a FILTER 
  # regular expression here, like in the example above.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "de,en". }
}
order by lcase(?lemma) # order a-z
Try it!

Lexeme languages by number of usage examples

# Lexeme languages by number of usage examples
# by Vesihiisi
# improved by So9q 23-20-2020 to only show those with both a form and a sense, 
# because that's what we really want 

#defaultView:BubbleChart
SELECT ?languageLabel (COUNT(?example) AS ?count ) WHERE {
  ?l a ontolex:LexicalEntry; dct:language ?language.
  ?l p:P5831 ?statement.
  ?statement ps:P5831 ?example;
             pq:P6072 [];
             pq:P5830 [].
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
GROUP BY ?languageLabel
ORDER BY DESC(?count)
Try it!

Lexemes describing a color

# Lexemes describing a color
# By Vesihiisi

SELECT ?l ?lemma ?languageLabel  WHERE {
  ?l a ontolex:LexicalEntry; 
       dct:language ?language; 
       wikibase:lemma ?lemma .
  ?l wdt:P31 wd:Q376431.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
ORDER BY ?languageLabel
Try it!

Lexemes that means water ordered by language

# By So9q
# Lexemes that means (liquid) water
select ?l ?sense ?lemma ?languageLabel WHERE {
  ?l a ontolex:LexicalEntry ; # get from the special LexicalEntry
       ontolex:sense ?sense ; # the sense
       dct:language ?language ; # the language
       wikibase:lemma ?lemma. # and the lemma
  ?sense wdt:P5137 wd:Q29053744 .
                   # change Q29053744 to anything you want 
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
# Lower case before order
order by (LCASE(?languageLabel))
Try it!

The 100 most translated concepts in the Lexeme namespace

# by So9q, 2019-11-21
# no known limitations

#defaultView:BubbleChart
SELECT ?meaning ?meaningLabel (count(?l) as ?count) 
WHERE {
   ?l a ontolex:LexicalEntry ; 
        ontolex:sense ?sense. # get the sense
  ?sense wdt:P5137 ?meaning. #extract the meaning
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en"}
}
group by ?meaning ?meaningLabel # 2 here to avoid "bad aggregate", see https://www.wikidata.org/wiki/Wikidata:SPARQL_tutorial#Painting_materials
order by desc(?count) # rank by the most translated concepts 
limit 100 # only show the 100 highest to avoid clutter
Try it!

Demonyms on map

# Words describing people from a certain place
# e.g. swede
# by Vesihiisi
#defaultView:Map
SELECT ?l ?lemma ?demoPlaceLabel ?coords WHERE {
  ?l a ontolex:LexicalEntry ; 
       dct:language ?language ;
       wikibase:lemma ?lemma .
  ?language wdt:P218 'sv'. # language
  ?l ontolex:sense ?sense.
     ?sense wdt:P6271 ?demoPlace.
  ?demoPlace wdt:P625 ?coords
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!

Forms in Hebrew that are both feminine and masculine

# Forms of nouns in Hebrew that are both feminine and masculine
# e.g. ???
# by Uziel302
select ?lexemeId ?lemma ?form ?word WHERE {
  ?lexemeId dct:language wd:Q9288;
            wikibase:lexicalCategory wd:Q1084;
            wikibase:lemma ?lemma.
  ?lexemeId ontolex:lexicalForm ?form .
  ?form wikibase:grammaticalFeature wd:Q499327;
        wikibase:grammaticalFeature wd:Q1775415;
        ontolex:representation ?word .
}
Try it!

Lexemes by number of statements

#title:Lexemes by number of statements
#author:Nikki 2021-09-15
select * {
  ?l dct:language [];
     wikibase:statements ?c.
}
order by desc(?c) limit 50
Lexemes by number of statements

Wikibase predicates

Properties

Properties grouped by their parent property

#Properties grouped by their parent property
#TODO: should display links and numeric ids
#defaultView:Tree
SELECT ?property2 ?property2Label ?property1 ?property1Label WHERE {
  ?property1 rdf:type wikibase:Property. #not replaceable with wikibase:Item, wikibase:Statement, wikibase:Reference at WDQS
                                         #https://www.mediawiki.org/wiki/Wikibase/Indexing/RDF_Dump_Format#WDQS_data_differences
  ?property1 wdt:P1647 ?property2.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!

Subproperties of location (P276)

#Subproperties of location (P276)
SELECT DISTINCT ?subProperties ?subPropertiesLabel WHERE {
  ?subProperties wdt:P1647* wd:P276.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!

Properties grouped by their Wikibase datatype (Q19798645) with number of properties

#Properties grouped by their type with number of properties
SELECT (COUNT(?property) as ?pcount ) ?wbtype WHERE {
  ?property rdf:type               wikibase:Property.
  ?property wikibase:propertyType  ?wbtype.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
GROUP BY ?wbtype
ORDER BY DESC(?pcount)
Try it!

properties used to link to instances of technical standard (Q317623)

#properties used to link to instances of technical standard
SELECT DISTINCT ?propertyRel ?propertyItem ?propertyItemLabel WHERE 
{
   ?item ?propertyRel ?standard.
   ?standard wdt:P31 wd:Q317623.
   ?propertyItem wikibase:directClaim ?propertyRel
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!

All properties with descriptions and aliases and types

SELECT ?property ?propertyType ?propertyLabel ?propertyDescription ?propertyAltLabel WHERE {
  ?property wikibase:propertyType ?propertyType .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
ORDER BY ASC(xsd:integer(STRAFTER(STR(?property), 'P')))
Try it!

Properties connecting items of type zoo (Q43501) with items of type animal (Q729)

select ?p ?pLabel (count (*) as ?count) {
  ?s ?pd ?o .
  ?p wikibase:directClaim ?pd .
  ?s wdt:P31/wdt:P279* wd:Q729 .
  ?o wdt:P31/wdt:P279* wd:Q43501 .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
} group by ?p ?pLabel order by desc(?count)
Try it!

Identifier properties present on one item, but absent on another

#added November 1, 2020 (76 ids then)
#TEMPLATE={ "template":"Identifiers present on the item for Penelope Cruz, but not on the item for Sean Connery"}
SELECT 
  ?p ?pLabel
  (SAMPLE(?url) as ?url_comp2)
WHERE
{
    hint:Query hint:optimizer "None".
    BIND( wd:Q4573 as ?comp1)
    BIND( wd:Q39666 as ?comp2)
    { 
        ?comp2 ?wdt ?v . 
        ?p wikibase:directClaim ?wdt ; wikibase:propertyType wikibase:ExternalId .
        FILTER NOT EXISTS { ?comp1 ?wdt [] }
        OPTIONAL { ?p  wdt:P1630 ?f }
        BIND(uri(REPLACE(?f,"\\$1",?v)) as ?url)
    }
    UNION { BIND(wd:Q4573 as ?p) }
    UNION { BIND(wd:Q39666 as ?p) }
   SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". } 
}
GROUP BY ?p ?pLabel
ORDER BY ?url_comp2

Try it!


References

Content of a reference for a specific statement

# See also the SPARQL manual
# https://en.wikibooks.org/wiki/SPARQL/WIKIDATA_Qualifiers,_References_and_Ranks
# In this example we look for statements which assign a specific value (Q51955019)
# to the property P1343 and then look for references of that property, specifically
# the string associated to P958 for the reference. May actually bring up references
# for other P1343 statements; uses the shortened expression syntax with brackets.
SELECT ?item ?reference
WHERE {
  ?item wdt:P1343 wd:Q51955019 .
  ?item p:P1343 [ prov:wasDerivedFrom [ pr:P958 ?reference ] ] .
}
Try it!

Wikimedia projects

Countries that have sitelinks to en.wiki

SELECT ?country ?countryLabel ?article WHERE {

    ?country wdt:P31 wd:Q3624078 . # sovereign state
    ?article schema:about ?country .
    ?article schema:isPartOf <https://en.wikipedia.org/>.

    SERVICE wikibase:label {
       bd:serviceParam wikibase:language "en"
    }
}
Try it!

Canadian subjects with no English article in Wikipedia

#added before 2019-02

SELECT ?item ?itemLabel ?cnt WHERE {
{
  SELECT ?item (COUNT(?sitelink) AS ?cnt) WHERE { 
  ?item wdt:P27|wdt:P205|wdt:P17 wd:Q16 . #Canadian subjects.
  minus {?item wdt:P106 wd:Q488111 .} #Minus occupations that would be inappropriate in most situations.
  minus {?item wdt:P106 wd:Q3286043 .}
  minus {?item wdt:P106 wd:Q4610556 .}  
  ?sitelink schema:about ?item .
  FILTER NOT EXISTS {
    ?article schema:about ?item .
    ?article schema:isPartOf <https://en.wikipedia.org/> . #Targeting Wikipedia language where subjects has no article.
  }
  } GROUP BY ?item ORDER BY DESC (?cnt) LIMIT 1000 #Sorted by amount of articles in other languages. Result limited to 1000 lines to not have a timeout error.
}
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en,fr,es,de" }  #Service to resolve labels in (fallback) languages: automatic user language, English, French, Spanish, German.
} ORDER BY DESC (?cnt)
Try it!

Countries that have a Featured Article on Russian Wikipedia

SELECT ?sitelink ?itemLabel WHERE {
  ?item wdt:P31 wd:Q6256.
  ?sitelink schema:isPartOf <https://ru.wikipedia.org/>;
     schema:about ?item;
     wikibase:badge wd:Q17437796 . # Sitelink is badged as a Featured Article
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" } .
} ORDER BY ?itemLabel
Try it!

Numbers of Wikipedia sitelinks for items with Art UK artist ID (P1367) for each language

SELECT ?lang (COUNT(DISTINCT ?article) AS ?count) WHERE {
  hint:Query hint:optimizer "None".
  ?item wdt:P1367 ?yp_id .
  ?article schema:about ?item . # find articles about things with a BBC 'Your paintings' artist identifier
  ?article schema:isPartOf / wikibase:wikiGroup "wikipedia" . # only Wikipedias articles
  hint:Prior hint:gearing "forward" .
  # This hint says to search the property chain above from left to right ("forward"),
  # i.e. it is checked if each previously found value for ?article is linked to a Wikipedia.
  # The default ("reverse") would be to search it from right to left, i.e. find all Wikipedia
  # articles first, and then select the intersection with the previously found values of ?article.
  ?article schema:inLanguage ?lang .
} GROUP BY ?lang
ORDER BY DESC (?count)
Try it!

Titles of articles about Ukrainian villages on Romanian Wikipedia

#Show titles of articles about Ukrainian villages on Romanian Wikipedia, plus English and Ukrainian labels in Wikidata items
#added in 2017-05
SELECT DISTINCT ?item ?LabelEN ?LabelUK ?page_titleRO WHERE {
  ?item wdt:P31 wd:Q532 .  
  ?item wdt:P17 wd:Q212 .
  ?article schema:about ?item ; schema:isPartOf <https://ro.wikipedia.org/> ;  schema:name ?page_titleRO .
  ?item rdfs:label ?LabelEN filter (lang(?LabelEN) = "en") .
  ?item rdfs:label ?LabelUK filter (lang(?LabelUK) = "uk") .
}
LIMIT 300
Try it!

Wikisource pages for authors of scientific articles

#Wikisource pages for authors of scientific articles, ordered by Wikisource language
#added in 2017-09
SELECT DISTINCT ?item ?wikisourceSitelink ?wikisourceLanguage WHERE {
  ?wikisourceSitelink schema:isPartOf [ wikibase:wikiGroup "wikisource" ];
                      schema:inLanguage ?wikisourceLanguage;
                      schema:about ?item.
  ?paper wdt:P31 wd:Q13442814;
         wdt:P50 ?item.
}
ORDER BY ?wikisourceLanguage
LIMIT 300
Try it!

Items with a GTAA id and their articles on the Dutch and English Wikipedia

select ?item ?itemLabel ?gtaa ?_articleEN ?_articleNL where {
  ?item wdt:P1741 ?gtaa. # GTAA id
  OPTIONAL {
    ?_articleEN schema:about ?item.
    ?_articleNL schema:about ?item.
    ?_articleEN schema:isPartOf <https://en.wikipedia.org/>.
    ?_articleNL schema:isPartOf <https://nl.wikipedia.org/>.
  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en,nl". }
}
Try it!

People deceased in 2018 ordered by the number of sitelinks

select ?person ?personLabel ?died ?sitelinks where {
  ?person wdt:P31 wd:Q5;
          wdt:P570 ?died.
  filter (?died >= "2018-01-01T00:00:00Z"^^xsd:dateTime && ?died < "2019-01-01T00:00:00Z"^^xsd:dateTime)
  ?person wikibase:sitelinks ?sitelinks.
  service wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}  order by desc(?sitelinks) limit 100
Try it!

List of small monuments and other similar sites with link to Commons category (sitelink or P373)

SELECT ?item ?comm ?p373 ?cat WHERE {
  ?item wdt:P131* wd:Q894107.                               # ... municipality ...

  optional {?comm schema:about ?item ; schema:isPartOf <https://commons.wikimedia.org/> .}
  BIND(replace(wikibase:decodeUri(SUBSTR(STR(?comm), 45)),"_"," ") AS ?comm_decode)
   optional {?item wdt:P373 ?p373 .}
  
 bind(COALESCE(?comm_decode, ?p373) as ?cat) .
 VALUES ?trida { wd:Q1746392 wd:Q108325 wd:Q4989906 wd:Q10861631 wd:Q15077340 wd:Q1516537 wd:Q47008262}     # chapel, small monument, memorial, belltower, memorial monument, technical monument,  group of small monuments 
 ?item wdt:P31/wdt:P279* ?trida.                  #  small monument
  }
Try it!

Most famous child of a librarian

#Children of librarians with the most number of sitelinks (as a proxy for fame)
SELECT ?person ?personLabel ?parentLabel ?linkcount WHERE {
    ?parent wdt:P106 wd:Q182436 .
    ?parent wdt:P40 ?person .
    ?person wikibase:sitelinks ?linkcount .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en,de,es,ar,fr" }
}
GROUP BY  ?linkcount ?person ?personLabel ?parent ?parentLabel
ORDER BY DESC(?linkcount)
Try it!

All languages with a Wikimedia language code (P424)

#title: All languages with a Wikimedia language code (P424)
# Date: 2021-09-24
SELECT DISTINCT ?lang_code ?itemLabel ?item
WHERE
{
  # ?lang is one of these options
  VALUES ?lang {
    wd:Q34770   # language
    wd:Q436240  # ancient language
    wd:Q1288568 # modern language
    wd:Q33215   # constructed language
  }
  ?item wdt:P31 ?lang ;
    # get the language code
    wdt:P424 ?lang_code .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
} ORDER BY ?lang_code
All languages with a Wikimedia language code (P424)

All Wikipedia sites

# Get all Wikipedia sites
SELECT ?item ?itemLabel ?website
WHERE 
{
  #?item wdt:P31 wd:Q10876391.
  ?item wdt:P856 ?website.
  ?website wikibase:wikiGroup "wikipedia".
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!

Featured articles of all Wikimedia projects

# Get all Featured Articles (Q17437796)
SELECT ?lang ?name ?itemLabel ?sitelink ?linkcount ?item WHERE {
  ?item wikibase:sitelinks ?linkcount.
  ?sitelink schema:name ?name;
    schema:inLanguage ?lang;
    schema:about ?item;
    # Sitelink is badged as a Featured Article
    wikibase:badge wd:Q17437796.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!

Entertainment

Rock bands that start with "M"

SELECT ?band ?bandLabel
WHERE
{
  ?band wdt:P31 wd:Q5741069 .
        ?band rdfs:label ?bandLabel .
  FILTER(LANG(?bandLabel) = "en") .
  FILTER(STRSTARTS(?bandLabel, 'M')) .
}
Try it!

Films of directors by their English Wikipedia name

SELECT ?film ?filmLabel ?genere ?d WHERE {
  {
    SELECT ?film (GROUP_CONCAT(DISTINCT ?gL; SEPARATOR = ", ") AS ?genere) (MIN(YEAR(?date)) AS ?d) WHERE {
      ?sitelink schema:about ?director;
        schema:isPartOf <https://en.wikipedia.org/>;
        schema:name "Steven Spielberg"@en. # Edit this with different director's name to see their films. Use the English Wikipedia title only.
      ?film wdt:P31 wd:Q11424;
        wdt:P136 ?g, ?g.
      ?g rdfs:label ?gL.
      ?film wdt:P57 ?director;
        wdt:P577 ?date.
      FILTER((LANG(?gL)) = "en")
      SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
    }
    GROUP BY ?film
  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER BY DESC (?d)
Try it!

Winner of the Academy Awards by Award and Time

SELECT DISTINCT ?item ?itemLabel ?awardLabel ?time
{
    ?item wdt:P106/wdt:P279* wd:Q3455803 ; # Items with the Occupation(P106) of Director(Q3455803) or a subclass(P279)
          p:P166 ?awardStat .              # ... with an awarded(P166) statement
    ?awardStat pq:P805 ?award ;            # Get the award (which is "subject of" XXth Academy Awards)
               ps:P166 wd:Q103360 .        # ... that has the value Academy Award for Best Director(Q103360)
    ?award wdt:P585 ?time .                # the "point of time" of the Academy Award
    SERVICE wikibase:label {               # ... include the labels
        bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en"
    }
}
ORDER BY DESC(?time)
Try it!

Academy award data

SELECT ?human ?humanLabel ?awardEditionLabel ?awardLabel ?awardWork ?awardWorkLabel ?director ?directorLabel ?time
WHERE
{
  {
    SELECT (SAMPLE(?human) AS ?human) ?award ?awardWork (SAMPLE(?director) AS ?director) (SAMPLE(?awardEdition) AS ?awardEdition) (SAMPLE(?time) AS ?time) WHERE {
      ?award wdt:P31 wd:Q19020 .      # All items that are instance of(P31) of Academy awards (Q19020)
      {
        ?human p:P166 ?awardStat .              # Humans with an awarded(P166) statement
        ?awardStat ps:P166 ?award .        # ... that has any of the values of ?award
        ?awardStat pq:P805 ?awardEdition . # Get the award edition (which is "subject of" XXth Academy Awards)
        ?awardStat pq:P1686 ?awardWork . # The work they have been awarded for
        ?human wdt:P31 wd:Q5 .        # Humans
      } UNION {
        ?awardWork wdt:P31 wd:Q11424 . # Films
        ?awardWork p:P166 ?awardStat . # ... with an awarded(P166) statement
        ?awardStat ps:P166 ?award .        # ... that has any of the values of ?award
        ?awardStat pq:P805 ?awardEdition . # Get the award edition (which is "subject of" XXth Academy Awards)
      }
      OPTIONAL {
        ?awardEdition wdt:P585 ?time . # the "point of time" of the Academy Award
        ?awardWork wdt:P57 ?director .
      }
    }
    GROUP BY ?awardWork ?award # We only want every movie once for a category (a 'random' person is selected)
  }

  SERVICE wikibase:label {            # ... include the labels
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
  }
}
ORDER BY DESC(?time)
Try it!

People that received both Academy Award and Nobel Prize

SELECT DISTINCT ?Person ?PersonLabel ?NobelPrizeLabel ?AcademyAwardLabel WHERE {
  ?NobelPrize wdt:P279?/wdt:P31? wd:Q7191 .    # <- subtypes of nobel prize
  ?AcademyAward wdt:P279?/wdt:P31? wd:Q19020 . # <- subtypes of academy award
  ?Person wdt:P166? ?NobelPrize .              # <- people awarded a nobel prize
  ?Person wdt:P166? ?AcademyAward .            # <- people awarded an academy award
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
  }
}
Try it!

Number of handed out academy awards per award type

SELECT ?awardCount ?award ?awardLabel WHERE {
  {
    SELECT (COUNT(?award) AS ?awardCount) ?award
    WHERE
    {
      {
        SELECT (SAMPLE(?human) AS ?human) ?award ?awardWork (SAMPLE(?director) AS ?director) (SAMPLE(?awardEdition) AS ?awardEdition) (SAMPLE(?time) AS ?time) WHERE {
          ?award wdt:P31 wd:Q19020 .      # All items that are instance of(P31) of Academy awards (Q19020)
          {
            ?human p:P166 ?awardStat .              # Humans with an awarded(P166) statement
            ?awardStat ps:P166 ?award .        # ... that has any of the values of ?award
            ?awardStat pq:P805 ?awardEdition . # Get the award edition (which is "subject of" XXth Academy Awards)
            ?awardStat pq:P1686 ?awardWork . # The work they have been awarded for
            ?human wdt:P31 wd:Q5 .        # Humans
          } UNION {
            ?awardWork wdt:P31 wd:Q11424 . # Films
            ?awardWork p:P166 ?awardStat . # ... with an awarded(P166) statement
            ?awardStat ps:P166 ?award .        # ... that has any of the values of ?award
            ?awardStat pq:P805 ?awardEdition . # Get the award edition (which is "subject of" XXth Academy Awards)
          }
          OPTIONAL {
            ?awardEdition wdt:P585 ?time . # the "point of time" of the Academy Award
            ?awardWork wdt:P57 ?director .
          }
        }
        GROUP BY ?awardWork ?award # We only want every movie once for a category (a 'random' person is selected)
      }
    } GROUP BY ?award
    ORDER BY ASC(?awardCount)
  }
  SERVICE wikibase:label {            # ... include the labels
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
  }
}
Try it!

Film directors ranked by number of sitelinks multiplied by their number of films

SELECT ?director ?director_label ?films ?sitelinks ((?films * ?sitelinks) as ?rank)
WHERE {
  {SELECT ?director (count(distinct ?film) as ?films) (count(distinct ?sitelink) as ?sitelinks)
     WHERE { 
       ?director wdt:P106 wd:Q2526255 .         # has "film director" as occupation
     ?film wdt:P57 ?director .            # get all films directed by the director
       ?sitelink schema:about ?director .       # get all the sitelinks about the director
       } GROUP BY ?director }
SERVICE wikibase:label { 
  bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en".  # Get label if it exists
?director rdfs:label ?director_label }  
} ORDER BY DESC(?rank)
LIMIT 100
Try it!

The Simpsons television series episodes list by season

SELECT ?show ?showLabel ?seasonNumber ?episode ?episodeLabel
WHERE {
  BIND(wd:Q886 as ?show) .
  ?season wdt:P361 ?show .
  ?episode wdt:P361 ?season .
  ?season p:P179 [
          pq:P1545 ?seasonNumber] .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
} ORDER BY xsd:integer(?seasonNumber)
Try it!

Pokémon!

# Updated 2020-06-17

# Gotta catch 'em all
SELECT DISTINCT ?pokemon ?pokemonLabel ?pokedexNumber
WHERE
{
    ?pokemon wdt:P31/wdt:P279* wd:Q3966183 .
    ?pokemon p:P1685 ?statement.
    ?statement ps:P1685 ?pokedexNumber;
              pq:P972 wd:Q20005020.
    FILTER (! wikibase:isSomeValue(?pokedexNumber) )
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
ORDER BY (?pokedexNumber)
Try it!

Law & Order episodes

# All Law & Order episodes on Wikidata.
# According to enwp, “[a] total of 456 original episodes… aired before cancellation” (https://en.wikipedia.org/wiki/List_of_Law_%26_Order_episodes).
# As of this writing, the query returns 451 results, so some episodes are missing (either without item or lacking the necessary statements to match this query).

SELECT (SAMPLE(?seasonNumber) AS ?seasonNumber) (SAMPLE(?episodeNumber) AS ?episodeNumber) (SAMPLE(?title) AS ?title) (MIN(?pubDate) AS ?pubDate) ?episode
{
  # All episodes should be instance of episode with series Law & Order.
  ?episode wdt:P31 wd:Q21191270;
           wdt:P179 wd:Q321423.
  # Many of them also have the season as series, so we can get episode and season number from qualifiers there.
  OPTIONAL {
    ?episode p:P179 [
      # the season also has series Law & Order
      ps:P179/p:P179 [
        ps:P179 wd:Q321423;
                pq:P1545 ?seasonNumber
      ] ;
      pq:P1545 ?episodeNumber
    ]
  }
  OPTIONAL { ?episode wdt:P1476 ?title. }
  OPTIONAL { ?episode wdt:P577 ?pubDate. }
}
GROUP BY ?episode # make sure we return each episode only once – a few have multiple publication dates, for example
ORDER BY IF(BOUND(?seasonNumber), xsd:integer(?seasonNumber), 1000) xsd:integer(?episodeNumber) ?title
Try it!

Main subjects of West Wing episodes

SELECT DISTINCT ?episode ?ordinal ?episodeLabel ?subject ?subjectLabel
WHERE {
  ?episode wdt:P31/wdt:P279* wd:Q1983062;
           p:P179 ?statement.
  OPTIONAL{ ?episode wdt:P921 ?subject }
  ?statement ps:P179 wd:Q3577037;
             pq:P1545 ?ordinal
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
} ORDER BY xsd:integer(?ordinal)
Try it!

Movies with Bud Spencer

SELECT ?item ?itemLabel (MIN(?date) AS ?firstReleased) ?_image
WHERE {
  ?item wdt:P161 wd:Q221074;
        wdt:P577 ?date
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  OPTIONAL { ?item wdt:P18 ?_image. }
} GROUP BY ?item ?itemLabel ?_image
ORDER BY (?date)
Try it!

Fictional subjects of the Marvel Universe

SELECT ?char ?charName (GROUP_CONCAT(DISTINCT ?typeLabel;separator=", ") AS ?types) (GROUP_CONCAT(DISTINCT ?universeLabel;separator=", ") AS ?universes)
WHERE {
  ?char wdt:P1080 wd:Q931597;
          wdt:P31 ?type ;
          wdt:P1080 ?universe .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en".
                         ?char rdfs:label ?charName .
                         ?universe rdfs:label ?universeLabel .
                         ?type rdfs:label ?typeLabel .}
} GROUP BY ?char ?charName
Try it!

Contemporary Indian actresses

SELECT ?item ?itemLabel ?itemDescription (SAMPLE(?img) AS ?image) (SAMPLE(?dob) AS ?dob) ?sl
WHERE {
  ?item wdt:P106 wd:Q33999 ;
          wdt:P27 wd:Q668 ;
          wdt:P21 wd:Q6581072 .
  MINUS { ?item wdt:P570 [] }
  OPTIONAL { ?item wdt:P18 ?img }
  OPTIONAL { ?item wdt:P569 ?dob } 
  OPTIONAL { ?item wikibase:sitelinks ?sl } 
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en"}
} GROUP BY ?item ?itemLabel ?itemDescription ?sl
ORDER BY DESC(?sl)
Try it!

Articles on Punjabi (Gurmukhi) Wikipedia about Pakistani actresses

#added 2017-03-25 (46 results)
SELECT ?sitelink
WHERE
{
  # gender = female
    ?item wdt:P21 wd:Q6581072 .

    # country = Pakistan (Q25)
    { ?item wdt:P27 wd:Q843 }

        # occupation = actress (Q33999)
    { ?item wdt:P106 wd:Q33999 }
 
  # look for articles (sitelinks) in Punjabi ("pa")
    { ?sitelink schema:about ?item . ?sitelink schema:inLanguage "pa" }

  # humans only
    ?item wdt:P31 wd:Q5 .
}
#Listeria can only handle up to 5000
LIMIT 5000
Try it!

All Dr. Who performers

#added 2017-07-16, updated 2020-07-08
SELECT ?doctor ?doctorLabel ?ordinal ?performer ?performerLabel
WHERE {
  ?doctor wdt:P31 wd:Q47543030 .
  OPTIONAL { ?doctor wdt:P1545 ?ordinal }
  OPTIONAL { ?doctor p:P175 / ps:P175 ?performer }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
ORDER BY ASC(xsd:integer(?ordinal) )
Try it!

Movies and their narrative location on a map

#defaultView:Map
SELECT ?movie ?movieLabel ?narrative_location ?narrative_locationLabel ?coordinates WHERE {
   ?movie wdt:P840 ?narrative_location ;
          wdt:P31 wd:Q11424 .
   ?narrative_location wdt:P625 ?coordinates .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!

Movies released in 2017

SELECT DISTINCT ?item ?itemLabel WHERE {
  ?item wdt:P31 wd:Q11424.
  ?item wdt:P577 ?pubdate.
  FILTER((?pubdate >= "2017-01-01T00:00:00Z"^^xsd:dateTime) && (?pubdate <= "2017-12-31T00:00:00Z"^^xsd:dateTime))
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!

Musicians or singers that have a genre containing 'rock'

SELECT DISTINCT ?human ?humanLabel
WHERE
{
    VALUES ?professions {wd:Q177220 wd:Q639669}
    ?human wdt:P31 wd:Q5 .
    ?human wdt:P106 ?professions .
    ?human wdt:P136 ?genre .
    ?human wikibase:statements ?statementcount .
    ?genre rdfs:label ?genreLabel .  
    FILTER CONTAINS(?genreLabel, "rock") .
    FILTER (?statementcount > 50 ) .
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
ORDER BY ?humanLabel
LIMIT 50
Try it!

Fictional characters whose birth/death date is in the current decade

SELECT DISTINCT ?character ?characterLabel ?birth ?death WITH {
  # Fictional character subclasses as a named subquery
  SELECT ?fictiontype WHERE {
    ?fictiontype wdt:P279* wd:Q95074. hint:Prior hint:gearing "forward".
  }
} AS %i
WHERE
{
  INCLUDE %i
  ?character wdt:P31 ?fictiontype.
  # Date of birth
  { ?character wdt:P569 ?birth . }
  # Date of death
  UNION { ?character wdt:P570 ?death . }
  # Get actual decade to compare with dates
  BIND(xsd:integer(YEAR(NOW())/10) as ?actual_decade).
  # Only show characters born or deceased in the current decade
  FILTER(xsd:integer(YEAR(?birth)/10) = ?actual_decade || xsd:integer(YEAR(?death)/10) = ?actual_decade)
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" . 
  }
} ORDER BY ?birth ?death
Try it!

Geography

Countries

List of present-day countries and capital(s)

SELECT DISTINCT ?country ?countryLabel ?capital ?capitalLabel
WHERE
{
  ?country wdt:P31 wd:Q3624078 .
  #not a former country
  FILTER NOT EXISTS {?country wdt:P31 wd:Q3024240}
  #and no an ancient civilisation (needed to exclude ancient Egypt)
  FILTER NOT EXISTS {?country wdt:P31 wd:Q28171280}
  OPTIONAL { ?country wdt:P36 ?capital } .

  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
ORDER BY ?countryLabel
Try it!

UN member states

SELECT DISTINCT ?state WHERE {
  ?state wdt:P31/wdt:P279* wd:Q3624078;
         p:P463 ?memberOfStatement.
  ?memberOfStatement a wikibase:BestRank;
                     ps:P463 wd:Q1065.
  MINUS { ?memberOfStatement pq:P582 ?endTime. }
  MINUS { ?state wdt:P576|wdt:P582 ?end. }
}
Try it!

Largest cities per country

#Largest cities per country
SELECT DISTINCT ?city ?cityLabel ?population ?country ?countryLabel ?loc WHERE {
  {
    SELECT (MAX(?population) AS ?population) ?country WHERE {
      ?city wdt:P31/wdt:P279* wd:Q515 .
      ?city wdt:P1082 ?population .
      ?city wdt:P17 ?country .
    }
    GROUP BY ?country
    ORDER BY DESC(?population)
  }
  ?city wdt:P31/wdt:P279* wd:Q515 .
  ?city wdt:P1082 ?population .
  ?city wdt:P17 ?country .
  ?city wdt:P625 ?loc .
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
  }
}
Try it!

Wikidata people per million inhabitants for all EU countries

#Interesting maintenance query that shows the relative prominence of a country's current (living) population on Wikidata. 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 the line as indicated below
SELECT
  ?country ?countryLabel
  ?wikiPersons
  ?population
  (ROUND(?wikiPersons/?population*1000000) AS ?wikiPersonsPerM)
WHERE
{
  { SELECT ?country (count(*) as ?wikiPersons) WHERE {
    {SELECT DISTINCT ?person ?country WHERE {
      wd:Q458 wdt:P150 ?country .   # European Union  contains administrative territorial entity
      # BIND( wd:Q30 AS ?country ) # use instead of previous line to check individual countries
      ?person wdt:P31 wd:Q5 .
      ?person wdt:P27 ?country .
      FILTER NOT EXISTS{ ?person wdt:P570 ?date } # only count living people
    } }
  } GROUP BY ?country  }
  ?country wdt:P1082 ?population
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
ORDER BY DESC(?wikiPersonsPerM)
Try it!

Papers about Wikidata

#papers about Wikidata
SELECT ?item ?itemLabel
WHERE
{
  ?item (wdt:P31/wdt:P279*) wd:Q191067.
  ?item wdt:P921 wd:Q2013.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
LIMIT 100
Try it!

Countries sorted by population

# defaultView:BubbleChart
SELECT DISTINCT ?countryLabel ?population
{
  ?country wdt:P31 wd:Q6256 ;
           wdt:P1082 ?population .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
GROUP BY ?population ?countryLabel
ORDER BY DESC(?population)
Try it!

Country populations together with total city populations

Lists for each country the population and the total of the populations of all cities of this country. If data were complete and populations were measured at the same time for each country and the respective cities then the ratio would be 1.

SELECT ?country ?countryLabel ?population ?totalCityPopulation (?population / ?totalCityPopulation AS ?ratio) {
  ?country wdt:P1082 ?population .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
  {
    SELECT ?country (SUM(?cityPopulation) AS ?totalCityPopulation) WHERE {
      ?city wdt:P31 wd:Q515 .
      ?city wdt:P17 ?country .
      ?city wdt:P1082 ?cityPopulation .
    } GROUP BY ?country
  }
} ORDER BY ?ratio
Try it!

Names of African countries in all their official languages and English

SELECT DISTINCT ?item ?itemLabel_ol ?official_language ?itemLabel_en WHERE {
  ?item wdt:P30 wd:Q15 ;
        wdt:P37 ?officiallanguage ;
        wdt:P31 wd:Q6256 .
  ?officiallanguage wdt:P424 ?langcode .
  ?item rdfs:label ?itemLabel_ol . FILTER(lang(?itemLabel_ol)=?langcode)
  ?item rdfs:label ?itemLabel_en . FILTER(lang(?itemLabel_en)='en')
  ?officiallanguage rdfs:label ?official_language . FILTER(lang(?official_language)='en')
}
ORDER BY ?item ?itemLabel_lol ?official_language
Try it!

Languages and dialects spoken in the Netherlands with their optional Wikipedia editions

select distinct ?language ?languageLabel ?wikipediaLabel where {
  ?language wdt:P31 ?instance;
            wdt:P17 wd:Q55.
  filter (?instance in (wd:Q34770, wd:Q33384)).
  optional { 
    ?wikipedia wdt:P31 wd:Q10876391;
               wdt:P407 ?language. 
  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "nl,en". }
} group by ?language ?languageLabel ?wikipediaLabel
Try it!

Cities

Population of cities and towns in Denmark and their OSM relation id

# Population of cities and towns in Denmark and their OSM relation id
# This shows a simple OR using VALUES and a variable
SELECT ?city ?cityLabel ?population ?OSM_relation_ID WHERE {
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  VALUES ?town_or_city {
    wd:Q3957
    wd:Q515
  }
  ?city (wdt:P31/(wdt:P279*)) ?town_or_city;
    wdt:P17 wd:Q35.
  OPTIONAL { ?city wdt:P1082 ?population. }
  OPTIONAL { ?city wdt:P402 ?OSM_relation_ID. }
}
LIMIT 100
Try it!

Former capitals

#defaultView:Map
SELECT DISTINCT ?country ?countryLabel ?capital ?capitalLabel ?coordinates ?ended
WHERE
{
  ?country p:P36 ?stat.
  ?stat ps:P36 ?capital.
  ?capital wdt:P625 ?coordinates.
  OPTIONAL {
    ?country wdt:P582|wdt:P576 ?ended.
  }
  OPTIONAL {
    ?capital wdt:P582|wdt:P576 ?ended.
  }
  OPTIONAL {
    ?stat pq:P582 ?ended.
  }
  FILTER(BOUND(?ended)).
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
Try it!

Largest cities of the world

#defaultView:BubbleChart
SELECT DISTINCT ?cityLabel ?population ?gps
WHERE
{
  ?city wdt:P31/wdt:P279* wd:Q515 .
  ?city wdt:P1082 ?population .
  ?city wdt:P625 ?gps .
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
  }
}
ORDER BY DESC(?population) LIMIT 100
Try it!

Cities as big as Eindhoven give or take 1000

#defaultView:Map
SELECT DISTINCT ?city ?cityLabel ?location ?populatie2 WHERE {
  wd:Q9832 wdt:P1082 ?populatie .
  ?city wdt:P1082 ?populatie2 ;
        wdt:P625 ?location .
  FILTER (abs(?populatie - ?populatie2) < 1000)
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],nl" }
}
Try it!

Where in the world is Antwerp

#defaultView:Map
SELECT DISTINCT ?settlement ?name ?coor
WHERE
{
  
   ?subclass_settlement wdt:P279+ wd:Q486972 .
   ?settlement wdt:P31 ?subclass_settlement ;
               wdt:P625 ?coor ;
                rdfs:label ?name .
   FILTER regex(?name, "Antwerp", "i")

}
Try it!

Destinations from Antwerp International airport

#defaultView:Map
SELECT ?connectsairport ?connectsairportLabel ?place_served ?place_servedLabel ?coor
WHERE
{
  VALUES ?airport { wd:Q17480 } # Antwerp international airport  wd:Q17480
  ?airport wdt:P81 ?connectsairport ;
           wdt:P625 ?base_airport_coor .
  ?connectsairport wdt:P931 ?place_served ;
                   wdt:P625 ?coor .
 
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
Try it!

Cities connected by the European route E40

#defaultView:Map
SELECT ?city ?cityLabel ?coordinates
WHERE
{
   VALUES ?highway {wd:Q327162 }
   ?highway wdt:P2789 ?city .
    ?city wdt:P625 ?coordinates .
   SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
Try it!

Cities connected by the Trans-Mongolian and Trans-Siberian Railway

#defaultView:Map
SELECT ?city ?cityLabel ?coordinates
WHERE
{
   VALUES ?highway { wd:Q559037 wd:Q58767 }
   ?highway wdt:P2789 ?city .
    ?city wdt:P625 ?coordinates .
   SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
Try it!

Cities connected to Paramaribo (Suriname) by main roads

#defaultView:Map
SELECT DISTINCT ?connection ?connectionLabel ?connectedWith ?connectedWithLabel ?coor
WHERE
{
  VALUES ?city {wd:Q3001} # wd:Q3001 = Paramaribo}
  ?connection wdt:P2789+ ?city ;
              wdt:P2789+ ?connectedWith .
  ?connectedWith wdt:P625 ?coor .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  }
Try it!

Names of 100 cities with a population larger than 1000000 in the native languages of their countries

# Show the names of 100 cities with a population larger than 1000000 in the native languages of their countries
SELECT ?city ?cityLabel ?country ?countryLabel ?lang ?langLabel ?langCode ?population
WHERE
{
  ?city wdt:P1082 ?population .
 
  FILTER(?population>1000000)
 
  ?city wdt:P31 wd:Q515;
        wdt:P17 ?country;
        rdfs:label ?cityLabel .
  ?country wdt:P37 ?lang;
           rdfs:label ?countryLabel .
  ?lang wdt:P424 ?langCode;
        rdfs:label ?langLabel .
 
  FILTER(lang(?cityLabel)=?langCode)
  FILTER(lang(?countryLabel)=?langCode)
  FILTER(lang(?langLabel)=?langCode)
} LIMIT 100
Try it!

Distances between any two cities or municipalities in an area

grouped by dist range, color-coded
#defaultView:BarChart
PREFIX var_muntype: <http://www.wikidata.org/entity/Q15284>
PREFIX var_area: <http://www.wikidata.org/entity/Q6308>
SELECT ?from ?to ?distGrp WHERE {
  {
    SELECT ?from ?to ?distNum ?mun ?mun2 WHERE {
      { SELECT ?mun (SAMPLE(?loc) AS ?loc)
        WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                     wdt:P131 var_area:;
                     wdt:P625 ?loc. }
        GROUP BY ?mun
      }
      OPTIONAL {
        { SELECT (?mun AS ?mun2) (SAMPLE(?loc) AS ?loc2)
          WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                       wdt:P131 var_area:;
                       wdt:P625 ?loc. }
          GROUP BY ?mun
        }
      }
      BIND(geof:distance(?loc, ?loc2) AS ?distNum).

      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en".
        ?mun rdfs:label ?from.
        ?mun2 rdfs:label ?to.
      }
    }
  }
  FILTER(CONCAT(?from,STR(?mun)) <= CONCAT(?to,STR(?mun2))).
  #BIND(IF(STR(?from) < STR(?to),CONCAT(?from," <--> ",?to),
  #  CONCAT(?to," <--> ",?from)) AS ?distLabel).

  BIND(COALESCE(
    IF(?distNum >= 40, "40 - .. km", 1/0),
    IF(?distNum >= 30, "30 - 40 km", 1/0),
    IF(?distNum >= 20, "20 - 30 km", 1/0),
    IF(?distNum >= 10, "10 - 20 km", 1/0),
    IF(?distNum >= 5, "05 - 10 km", 1/0),
    IF(?distNum >= 1, "01 - 05 km", "00 - 01 km")) AS ?distGrp).
}
ORDER BY ?from ?distGrp
Try it!
grouped per municipality on x-axis, alphabetically
#defaultView:ScatterChart
PREFIX var_muntype: <http://www.wikidata.org/entity/Q15284>
PREFIX var_area: <http://www.wikidata.org/entity/Q6308>
SELECT ?from (?distGrp1 AS ?kilometers) ?to WHERE {
  { SELECT ?mun (SAMPLE(?loc) AS ?loc)
    WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                 wdt:P131 var_area:;
                 wdt:P625 ?loc. }
    GROUP BY ?mun
  }
  OPTIONAL {
    { SELECT (?mun AS ?mun2) (SAMPLE(?loc) AS ?loc2)
      WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                   wdt:P131 var_area:;
                   wdt:P625 ?loc. }
      GROUP BY ?mun
    }
  }
  BIND(geof:distance(?loc, ?loc2) AS ?distNum).
  BIND(STR(ROUND(?distNum)) AS ?distGrp0).
  BIND(CONCAT(SUBSTR("000",STRLEN(?distGrp0)+1),?distGrp0,".",STR(ROUND((?distNum-FLOOR(?distNum))*10))," km") AS ?distGrp1).

  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en".
    ?mun rdfs:label ?from.
    ?mun2 rdfs:label ?to.
  }
}
ORDER BY ?from ?kilometers
Try it!
grouped per municipality on x-axis, by sum of dist
#defaultView:ScatterChart
PREFIX var_muntype: <http://www.wikidata.org/entity/Q15284>
PREFIX var_area: <http://www.wikidata.org/entity/Q6308>
SELECT ?from (?distNum AS ?kilometers) ?to WHERE {
  { SELECT ?mun (SAMPLE(?loc) AS ?loc)
    WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                 wdt:P131 var_area:;
                 wdt:P625 ?loc. }
    GROUP BY ?mun
  }
  OPTIONAL {
    { SELECT (?mun AS ?mun2) (SAMPLE(?loc) AS ?loc2)
      WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                   wdt:P131 var_area:;
                   wdt:P625 ?loc. }
      GROUP BY ?mun
    }
  }
  BIND(geof:distance(?loc, ?loc2) AS ?distNum).

  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en".
    ?mun rdfs:label ?from.
    ?mun2 rdfs:label ?to.
  }
}
ORDER BY ?from ?kilometers
Try it!
grouped per municipality on x-axis, animated per municipality on x-axis
#defaultView:ScatterChart
PREFIX var_muntype: <http://www.wikidata.org/entity/Q15284>
PREFIX var_area: <http://www.wikidata.org/entity/Q6308>
SELECT ?from (?distNum AS ?kilometers) ?to (?from AS ?animation) WHERE {
  { SELECT ?mun (SAMPLE(?loc) AS ?loc)
    WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                 wdt:P131 var_area:;
                 wdt:P625 ?loc. }
    GROUP BY ?mun
  }
  OPTIONAL {
    { SELECT (?mun AS ?mun2) (SAMPLE(?loc) AS ?loc2)
      WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                   wdt:P131 var_area:;
                   wdt:P625 ?loc. }
      GROUP BY ?mun
    }
  }
  BIND(geof:distance(?loc, ?loc2) AS ?distNum).

  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en".
    ?mun rdfs:label ?from.
    ?mun2 rdfs:label ?to.
  }
}
ORDER BY ?from ?kilometers
Try it!
grouped per municipality on x-axis, animated per municipality on z-axis
#defaultView:ScatterChart
PREFIX var_muntype: <http://www.wikidata.org/entity/Q15284>
PREFIX var_area: <http://www.wikidata.org/entity/Q6308>
SELECT ?from (?distNum AS ?kilometers) ?to (?to AS ?animation) WHERE {
  { SELECT ?mun (SAMPLE(?loc) AS ?loc)
    WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                 wdt:P131 var_area:;
                 wdt:P625 ?loc. }
    GROUP BY ?mun
  }
  OPTIONAL {
    { SELECT (?mun AS ?mun2) (SAMPLE(?loc) AS ?loc2)
      WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                   wdt:P131 var_area:;
                   wdt:P625 ?loc. }
      GROUP BY ?mun
    }
  }
  BIND(geof:distance(?loc, ?loc2) AS ?distNum).

  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en".
    ?mun rdfs:label ?from.
    ?mun2 rdfs:label ?to.
  }
}
ORDER BY ?from ?kilometers
Try it!
grouped per municipality on x-axis, animated by fixed dist range groups
#defaultView:ScatterChart
PREFIX var_muntype: <http://www.wikidata.org/entity/Q15284>
PREFIX var_area: <http://www.wikidata.org/entity/Q6308>
SELECT ?from (?distNum AS ?kilometers) ?to (?distGrp AS ?animation) WHERE {
  { SELECT ?mun (SAMPLE(?loc) AS ?loc)
    WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                 wdt:P131 var_area:;
                 wdt:P625 ?loc. }
    GROUP BY ?mun
  }
  OPTIONAL {
    { SELECT (?mun AS ?mun2) (SAMPLE(?loc) AS ?loc2)
      WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                   wdt:P131 var_area:;
                   wdt:P625 ?loc. }
      GROUP BY ?mun
    }
  }
  #FILTER (STR(?mun) <= STR(?mun2)).
  BIND(geof:distance(?loc, ?loc2) AS ?distNum).
  BIND(COALESCE(
    IF(?distNum >= 40, "40 km und mehr", 1/0),
    IF(?distNum >= 30, "30 - 40 km", 1/0),
    IF(?distNum >= 20, "20 - 30 km", 1/0),
    IF(?distNum >= 10, "10 - 20 km", 1/0),
    IF(?distNum >= 5, "05 - 10 km", 1/0),
    IF(?distNum >= 1, "01 - 05 km", "00 - 01 km")) AS ?distGrp).
  
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en".
    ?mun rdfs:label ?from.
    ?mun2 rdfs:label ?to.
  }
}
ORDER BY ?animation ?from ?kilometers
Try it!
grouped per municipality on x-axis, animated by ranked dist (farthest, 2nd farthest, ..)
#defaultView:ScatterChart
PREFIX var_muntype: <http://www.wikidata.org/entity/Q15284>
PREFIX var_area: <http://www.wikidata.org/entity/Q6308>
SELECT ?from ?kilometers ?to ?rank_group
WHERE {
  {
    SELECT (SAMPLE(?mun) AS ?mun) (SAMPLE(?mun2) AS ?mun2) (SAMPLE(?distNum) AS ?kilometers)
           (COUNT(*)-1 AS ?rg) (SUBSTR("00",1+STRLEN(STR(?rg))) AS ?rgpad)
           (IF(FLOOR((?rg-(100*FLOOR(?rg/100)))/10)=1,0,?rg-(10*FLOOR(?rg/10))) AS ?rgmod)
           (IF(?rgmod=1,"st",IF(?rgmod=2,"nd",IF(?rgmod=3,"rd","th"))) AS ?rgord)
           (CONCAT(?rgpad,STR(?rg),?rgord,"-most farthest places") AS ?rank_group)
    WHERE {
      { SELECT ?mun (SAMPLE(?loc) AS ?loc)
        WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                     wdt:P131 var_area:;
                     wdt:P625 ?loc. }
        GROUP BY ?mun
      }
      OPTIONAL {
        { SELECT (?mun AS ?mun2) (SAMPLE(?loc) AS ?loc2)
          WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                       wdt:P131 var_area:;
                       wdt:P625 ?loc. }
          GROUP BY ?mun
        }
      }
      OPTIONAL {
        { SELECT (?mun AS ?mun3) (SAMPLE(?loc) AS ?loc3)
          WHERE { ?mun wdt:P31/wdt:P279* var_muntype:;
                       wdt:P131 var_area:;
                       wdt:P625 ?loc. }
          GROUP BY ?mun
        }
      }
      BIND(geof:distance(?loc, ?loc2) AS ?distNum).
      BIND(geof:distance(?loc, ?loc3) AS ?d).
      FILTER(?distNum >= ?d).
    } GROUP BY ?mun ?mun2 ?distNum
  }
  
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en".
    ?mun rdfs:label ?from.
    ?mun2 rdfs:label ?to.
  }
}
ORDER BY ?rank_group ?kilometers ?from
Try it!

Show all Dutch municipalities that share a border with Alphen aan den Rijn (Q213246), ignoring rank

select ?muni ?muniLabel where {
  ?muni p:P31 [ps:P31 wd:Q2039348];
        wdt:P47 wd:Q213246.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "nl". }
}
Try it!

Border cities of the world

# To filter by country add FILTER (?country = wd:Qxx)
#defaultView:Map
# To show the cities of several countries use FILTER (?country IN (wd:Qxx, wd:Qyy))
# To obtain cities that are part of a particular continent or territory ?country
# should not be optional and add "?country wdt:P361 wd:Qxx ."

SELECT ?border_city ?border_cityLabel ?countryLabel ?coords 
WHERE {
  ?border_city wdt:P31 wd:Q902814.
  OPTIONAL { ?border_city wdt:P17 ?country. }
  OPTIONAL { ?border_city wdt:P625 ?coords. }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". 
                         ?border_city rdfs:label ?border_cityLabel.
                         ?country  rdfs:label ?countryLabel.}
}
GROUP BY ?border_city ?border_cityLabel ?countryLabel ?coords
order by ?countryLabel ?border_cityLabel
Try it!

Rivers

Longest rivers

#defaultView:BubbleChart
SELECT ?item ?itemLabel ?length ?pic ?location
WHERE
{
  ?item wdt:P31/wdt:P279* wd:Q4022 .
  ?item wdt:P2043 ?length .
  ?item wdt:P18 ?pic .
  ?item wdt:P625 ?location
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . }
} ORDER BY DESC(?length) ?itemLabel
LIMIT 50
Try it!

Longest river of each continent

SELECT ?continent ?river ?continentLabel ?riverLabel
WHERE
{
  {
    SELECT ?continent (MAX(?length) AS ?length)
    WHERE
    {
      ?river wdt:P31/wdt:P279* wd:Q355304;
             wdt:P2043 ?length;
             wdt:P30 ?continent.
    }
    GROUP BY ?continent
  }
  ?river wdt:P31/wdt:P279* wd:Q355304;
         wdt:P2043 ?length;
         wdt:P30 ?continent.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER BY ?continentLabel
Try it!

Rivers in Antarctica

SELECT ?river ?riverLabel ?location
WHERE
{
  ?river wdt:P31/wdt:P279* wd:Q355304; # watercourse; includes a few creeks – use wd:Q4022 for rivers only
         wdt:P30 wd:Q51.
  OPTIONAL { ?river wdt:P625 ?location. }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
Try it!

Body of water with the most watercourses ending in it

# Bodies of water that most watercourses end in (transitive).
# For example, over 4000 watercourses eventually flow into the Ob,
# and since the Ob flows into the Kara Sea, the Kara Sea has over 4000 results as well.
SELECT ?mouth (COUNT(?watercourse) AS ?count)
WHERE
{
  ?watercourse wdt:P403+ ?mouth.
}
GROUP BY ?mouth
ORDER BY DESC(?count)
LIMIT 10
Try it!

Bridges over rivers in former government district of Leipzig

#defaultView:Map
SELECT (SAMPLE(?bridge) AS ?bridge) (SAMPLE(?bridgeLabel) AS ?bridgeLabel)
       (SAMPLE(?watercourse) AS ?watercourse) (SAMPLE(?watercourseLabel) AS ?watercourseLabel)
       (SAMPLE(?loc) AS ?loc) (SAMPLE(?pic) AS ?pic)
       (CONCAT(SAMPLE(?sKey),": ",STR(YEAR(SAMPLE(?s)))) AS ?start)
       (CONCAT(SAMPLE(?eKey),": ",STR(YEAR(SAMPLE(?e)))) AS ?end)
       (SAMPLE(?article) AS ?article) (IF(BOUND(?article),CONCAT(?bridgeLabel," in Wikipedia"),1/0) AS ?articleLabel)
WHERE {
  {
    SELECT ?bridge ?watercourse WHERE {
      ?bridge wdt:P31/wdt:P279* wd:Q12280; wdt:P177 ?watercourse.
      ?watercourse wdt:P31/wdt:P279* wd:Q355304.
      # the following actually yields a perf penalty atm
      #?bridge wdt:P17 wd:Q183.
      #OPTIONAL { ?bridge wdt:P17 ?country. }. FILTER(!BOUND(?country) || ?country = wd:Q183).
    }
  }

  # wd:Q1202, wd:Q183 work as well atm and take progressively more time to complete
  ?bridge (p:P131|ps:P131)+ wd:Q24186.

  OPTIONAL { ?bridge wdt:P625 ?loc. }.
  OPTIONAL { ?bridge wdt:P18 ?pic. }.
  OPTIONAL { ?bridge wdt:P571 ?s. }.
  OPTIONAL { ?bridge wdt:P576 ?e. }.
  
  OPTIONAL {
    ?article schema:about ?bridge.
    FILTER (IF(EXISTS {?article schema:inLanguage "[AUTO_LANGUAGE]".},
               SUBSTR(str(?article), 1, 25) = "https://[AUTO_LANGUAGE].wikipedia.org/",
               IF(EXISTS {?article schema:inLanguage "en".},
                  SUBSTR(str(?article), 1, 25) = "https://en.wikipedia.org/",
                  SUBSTR(str(?article), 1, 25) = "https://de.wikipedia.org/"
               )
            )).
  }

  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en,de".
    ?bridge rdfs:label ?bridgeLabel.
    ?watercourse rdfs:label ?watercourseLabel.
    wd:P571 rdfs:label ?sKey.
    wd:P576 rdfs:label ?eKey.
  }
}
GROUP BY ?bridge ?watercourse
Try it!

Mountains

Mons (mountains), with coordinates, not located on Earth

SELECT DISTINCT ?item ?name ?coord ?lat ?lon ?globe
{
   ?item wdt:P31 wd:Q429088 ;
         p:P625 [
           psv:P625 [
             wikibase:geoLatitude ?lat ;
             wikibase:geoLongitude ?lon ;
             wikibase:geoGlobe ?globe ;
           ] ;
           ps:P625 ?coord
         ]
  FILTER ( ?globe != wd:Q2 )
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
    ?item rdfs:label ?name
   }
}
ORDER BY ASC (?name)
Try it!

Highest mountains in the universe

#Elevations over 8000 (meter, feet or other)
#Note the absence of units and the presence of coordinates
#Last updated 2021-04-25

SELECT ?elevation ?item ?itemLabel ?itemDescription ?coord
WHERE
{
  ?item wdt:P2044 ?elevation .
  filter(?elevation > 8000)
  ?item wdt:P625 ?coord .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
ORDER BY DESC(?elevation)
Try it!

Highest mountains in the universe (with units)

#Elevations over 8000 
#Displays units
#Last updated 2021-04-25

SELECT ?elevation ?unit ?unitLabel ?item ?itemLabel ?itemDescription ?coord
WHERE
{
  ?psv_triples wikibase:quantityAmount ?elevation .
  filter(?elevation > 8000) 
  ?psv_triples wikibase:quantityUnit ?unit .

  ?p_triples psv:P2044 ?psv_triples .  
  ?p_triples a wikibase:BestRank .
  
  ?item p:P2044 ?p_triples .
  
  ?item wdt:P625 ?coord .
  
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
ORDER BY DESC(?elevation)
Try it!


Highest mountains in the universe (with units, compact form)

#Elevations over 8000 
#Displays units
#Last updated 2021-04-25

SELECT ?elevation ?unit ?unitLabel ?item ?itemLabel ?itemDescription ?coord
WHERE
{
  ?item wdt:P2044 ?elevation . 
  # this could be dropped, but is included to speed it up
  filter(?elevation > 8000) 

  ?item p:P2044 [ a wikibase:BestRank ; psv:P2044 [ wikibase:quantityAmount ?elevation ; wikibase:quantityUnit ?unit ] ] .

  ?item wdt:P625 ?coord .
  
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
ORDER BY DESC(?elevation)
Try it!

Mountains over 8000 meters elevation

#Last updated 2021-04-25
#defaultView:Map
SELECT ?item ?itemLabel ?itemDescription ?coord ?elevation
WHERE
{
  ?item wdt:P31 wd:Q8502 .
  ?item p:P2044 [ a wikibase:BestRank; psn:P2044/wikibase:quantityAmount ?elevation ]
  FILTER(?elevation >= 8000 )
  ?item wdt:P625 ?coord.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
Try it!

Italian mountains higher than 4000 meters

#defaultView:ImageGrid
SELECT ?item ?itemLabel ?coord ?elev ?picture
{
  ?item p:P2044/psn:P2044/wikibase:quantityAmount ?elev ;  # normalized height
        wdt:P625 ?coord ;
        wdt:P17 wd:Q38 ;
        wdt:P18 ?picture
  FILTER(?elev > 4000)

  SERVICE wikibase:label { bd:serviceParam wikibase:language "it" }
}
Try it!

Places in Antarctica more than 3000km away from the South Pole

#title: Places in Antarctica over 3000km away from the South Pole
#defaultView:Map
SELECT ?place ?placeLabel ?location WHERE {
  wd:Q933 wdt:P625 ?southPole.                         # coordinates of south pole
  ?place wdt:P30 wd:Q51;                               # continent: antarctica
         wdt:P625 ?location.
  FILTER(geof:distance(?location, ?southPole) > 3000). # over 3000km away from south pole
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
Places in Antarctica over 3000km away from the South Pole

Metro stations of Paris Métro Line 1 (Q13224) in Paris

SELECT ?item ?itemLabel ?adjacent ?adjacentL ?coords
{
  ?item wdt:P31/wdt:P279* wd:Q928830 ;
        wdt:P81 wd:Q13224 ;
        wdt:P625 ?coords .
  OPTIONAL {
    ?item p:P197 [ ps:P197 ?adjacent ; pq:P5051 wd:Q585752;
                                       pq:P81 wd:Q13224] .
    ?adjacent rdfs:label ?adjacentL filter (lang(?adjacentL) = "en")
  }
?item wdt:P1619 ?founded_date. #needs existence
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . }
} ORDER BY ?itemLabel
Try it!

Map of Broadway venues

#defaultView:Map
# Venues in Broadway
SELECT DISTINCT ?venue ?venueLabel ?coords {
    ?venue wdt:P1217 ?IDBDB .
    wd:Q235065 wdt:P625 ?broadWayLoc .

    SERVICE wikibase:around {
      ?venue wdt:P625 ?coords .
      bd:serviceParam wikibase:center ?broadWayLoc .
      bd:serviceParam wikibase:radius "1.5" .
    }

  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
  }
}
Try it!

How many states this US state borders

SELECT ?state ?stateLabel ?borders
WHERE
{
  {
    SELECT ?state (COUNT(?otherState) as ?borders)
    WHERE
    {
    ?state wdt:P31 wd:Q35657 .
    ?otherState wdt:P47 ?state .
    ?otherState wdt:P31 wd:Q35657 .
    }
    GROUP BY ?state
  }
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
  }
}        
ORDER BY DESC(?borders)
Try it!

Places that are below 10 meters above sea level

#defaultView:Map
SELECT ?place ?location ?elev ?image
WHERE
{
  ?place p:P2044/psv:P2044 ?placeElev.
  ?placeElev wikibase:quantityAmount ?elev.
  ?placeElev wikibase:quantityUnit ?unit.
  bind(0.01 as ?km).
  filter( (?elev < ?km*1000 && ?unit = wd:Q11573)
       || (?elev < ?km*3281 && ?unit = wd:Q3710)
       || (?elev < ?km      && ?unit = wd:Q828224) ).
  ?place wdt:P625 ?location.
  optional { ?place wdt:P18 ?image }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
Try it!

Globes used to represent coordinates

SELECT (count(?v) as ?c) ?globe
WHERE
{
  ?v wikibase:geoGlobe ?globe
}
GROUP BY ?globe
ORDER BY DESC(?c)
Try it!

Places within 1km of the Empire State Building

SELECT ?place ?placeLabel ?location ?instanceLabel
WHERE
{
  wd:Q9188 wdt:P625 ?loc .
  SERVICE wikibase:around {
      ?place wdt:P625 ?location .
      bd:serviceParam wikibase:center ?loc .
      bd:serviceParam wikibase:radius "1" .
  }
  OPTIONAL {    ?place wdt:P31 ?instance  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
  BIND(geof:distance(?loc, ?location) as ?dist)
} ORDER BY ?dist
Try it!

Select French municipalities by INSEE code (select by identifier)

SELECT ?item ?itemLabel ?inseeCode {
  ?item wdt:P374 ?inseeCode .
  FILTER (?inseeCode in ("75056", "69123", "13055"))
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
Try it!


Map and list of municipalities in The Netherlands

#Concise list & map of the 355 Dutch municipalities, their geo coordinates and their provinces, per 1-1-2019
#See also: 
#https://almanak.overheid.nl/organisaties/Gemeenten/ - 355 in aantal
#https://nl.wikipedia.org/wiki/Lijst_van_Nederlandse_gemeenten - 355 in aantal

#defaultView:Map
select ?muni ?muniLabel ?location where {
  ?muni p:P31 ?instanceOf; # Get statement because we need this later
        wdt:P625 ?location. # And location
  ?instanceOf ps:P31 wd:Q2039348. # P31 should be 'municipality of the Netherlands'
  minus { ?muni wdt:P31 wd:Q7265977. } # Don't show former municipalities
  minus { ?instanceOf pq:P582 ?endTime. } # And don't show municipalities that have an end time
  service wikibase:label { bd:serviceParam wikibase:language "nl". } # Show names in Dutch
}
Try it!


Emergency numbers by population using them

#Lists emergency numbers and the total amount of people which can use them
#defaultView:BubbleChart
SELECT ?emergencyNumber ?emergencyNumberLabel ?tel ?population ?countries
WHERE
{
 ?emergencyNumber wdt:P31 wd:Q694554 .
  OPTIONAL{SELECT ?emergencyNumber (COUNT(?state) as ?countries) (SUM(?pop) as ?population) WHERE {
    ?state wdt:P2852 ?emergencyNumber .
    OPTIONAL{?state wdt:P1082 ?pop} .
    ?state wdt:P31/wdt:P279* wd:Q6256
  } GROUP BY ?emergencyNumber } .
  OPTIONAL{?emergencyNumber wdt:P1329 ?tel }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
ORDER BY DESC(?population)
Try it!

German states, ordered by the number of company headquarters per million inhabitants

# German states, ordered by the number of company headquarters per million inhabitants
# Replace wd:Q1221156 (state of Germany) by anything else you care about, e.g., wd:Q6256 (country)
# Nested queries for correctness (don't count companies twice) and performance (aggregate before adding more data)
# Limits: states without population missing; company data in Wikidata is always incomplete
# Note: This query shows some not-so-easy nesting of DISTINCT (don't count any company twice) and aggregate, in combination with arithmetic output evaluation functions. It is a hard query that may time out if modified.
SELECT
  ?state ?stateLabel
  ?companies
  ?population
  (?companies/?population*1000000 AS ?companiesPerM)
WHERE
{
  { SELECT ?state (count(*) as ?companies) WHERE {
    {SELECT DISTINCT ?company ?state WHERE {
      ?state wdt:P31 wd:Q1221156 .
      ?company wdt:P31/wdt:P279* wd:Q4830453 .
      ?company wdt:P159/wdt:P131* ?state .
      FILTER NOT EXISTS{ ?company wdt:P576 ?date } # don't count dissolved companies
    } }
  } GROUP BY ?state  }
    ?state wdt:P1082 ?population
  SERVICE wikibase:label { bd:serviceParam wikibase:language "de" }
}
ORDER BY DESC(?companiesPerM)
Try it!

Popular names per birthplace

#defaultView:BubbleChart
SELECT ?cid ?firstname (COUNT(*) AS ?count)
WHERE
{
  ?pid wdt:P19 wd:Q64.
  ?pid wdt:P735 ?cid.
  OPTIONAL {
    ?cid rdfs:label ?firstname
    FILTER((LANG(?firstname)) = "en")
  }
}
GROUP BY ?cid ?firstname
ORDER BY DESC(?count) ?firstname
LIMIT 50
Try it!

Map of places mentioned in travel stories with text in French accessible online

#defaultView:Map
SELECT DISTINCT ?item ?itemLabel ?ed ?edLabel ?auteurLabel (year(?dateCreation) as ?AnneeCreation) ?lieuLabel ?coord ?lien
WHERE
{
  ?item wdt:P136 wd:Q1164267 .    # genre :récit de voyage
  ?item  wdt:P31 wd:Q571 .        # nature : livre
  OPTIONAL{
    ?item wdt:P50 ?auteur .       # [option] auteur
  }
  OPTIONAL{
    ?item wdt:P571 ?dateCreation. # [option] date de création              
  }
 
  ?item  wdt:P840 ?lieu .         # lieu de l'action
  MINUS {?item  wdt:P840 wd:Q933} # (bug du Pôle Sud)
  ?lieu wdt:P625 ?coord .         # coordonnées géographiques du lieu
 
  {
    ?item wdt:P953 ?lien .        # URL, texte intégral disponible sur
    ?item wdt:P407 wd:Q150        # langue de l'œuvre : français
  }UNION{
    ?ed wdt:P629 ?item .          # édition du livre
    ?ed wdt:P953 ?lien .          # URL, texte intégral disponible sur 
    ?ed wdt:P407 wd:Q150          # langue de l'œuvre : français
  }

  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],fr". }
} ORDER BY ?dateCreation
Try it!

Things located where the equator meets the prime meridian

SELECT ?place ?placeLabel ?location
WHERE
{
  wd:Q24041662 wdt:P625 ?loc00 .
  SERVICE wikibase:around {
    ?place wdt:P625 ?location .
    bd:serviceParam wikibase:center ?loc00 .
    bd:serviceParam wikibase:radius "0.001" .
  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" .  }
}
ORDER BY ?placeLabel
Try it!

French communes with names ending in ac

#defaultView:Map
SELECT ?item ?itemLabel ?coord
WHERE
{
  ?item wdt:P31/wdt:P279* wd:Q484170;
        wdt:P17 wd:Q142;
        rdfs:label ?itemLabel;
        wdt:P625 ?coord;
  FILTER (lang(?itemLabel) = "fr").
  FILTER regex (?itemLabel, "ac$").
  FILTER not exists { ?item wdt:P131 wd:Q33788 } # excluding Koumac, New Caledonia...
}
Try it!

Buildings in more than one country

SELECT ?item ?itemLabel ?count
WHERE
{
  {
    SELECT ?item (COUNT(DISTINCT ?country) AS ?count) WHERE {
      ?item wdt:P31/wdt:P279* wd:Q41176 .
      ?item wdt:P17 ?country .
      FILTER NOT EXISTS { ?country wdt:P576 ?end }
    }
    GROUP BY ?item
  }
  FILTER ( ?count > 1 )
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . }
}
ORDER BY DESC(?count) ?itemL
Try it!

Streets named after a person

SELECT ?street ?streetLabel ?cityLabel ?personLabel
WHERE
{
    ?street wdt:P31 wd:Q79007 .
    ?street wdt:P17 wd:Q142 .
    ?street wdt:P131 ?city .
    ?street wdt:P138 ?person .
    ?person wdt:P31 wd:Q5
    SERVICE wikibase:label { bd:serviceParam wikibase:language "fr" }
}
ORDER BY ?city
Try it!

Streets in France without a city

SELECT ?street ?streetLabel
WHERE
{
    ?street wdt:P31/wdt:P279* wd:Q79007 .
    ?street wdt:P17 wd:Q142 .
    MINUS { ?street wdt:P131 [] } .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "fr" }
}
ORDER BY ?streetLabel
Try it!

ATMs around Munich belonging to the Bankcard-Servicenetz interbank network (federated query)

#defaultView:Map{"hide":["?atm","?geometry"], "layer": "?bankLabel"}

PREFIX lgdo: <http://linkedgeodata.org/ontology/>
PREFIX geom: <http://geovocab.org/geometry#>
PREFIX bif: <bif:>

SELECT ?atm ?geometry ?bank ?bankLabel WHERE {
  hint:Query hint:optimizer "None".
  
  SERVICE <http://linkedgeodata.org/sparql> {
    { ?atm a lgdo:Bank; lgdo:atm true. }
    UNION { ?atm a lgdo:Atm. }
    
    ?atm geom:geometry [geo:asWKT ?geometry];
         lgdo:operator ?operator.
    FILTER(bif:st_intersects(?geometry, bif:st_point(11.5746898, 48.1479876), 5)) # 5 km around Munich
  }
  
  BIND(STRLANG(?operator, "de") as ?bankLabel) 
  ?bank rdfs:label ?bankLabel.
  
  # bank is part of the Bankcard service network, either via an explicit statement or implicitly due to its legal form (unless explicitly excluded)
  { ?bank wdt:P527 wd:Q806724. }
  UNION { ?bank wdt:P1454 wd:Q5349747. }
  MINUS { wd:Q806724 wdt:P3113 ?bank. }
}
Try it!

Items geographically located around the Wikimedia Foundation office, sorted by distance

SELECT ?place ?location ?distance ?placeLabel WHERE {
    SERVICE wikibase:around { 
      ?place wdt:P625 ?location . 
      bd:serviceParam wikibase:center "Point(-122.402251 37.789246)"^^geo:wktLiteral . 
      bd:serviceParam wikibase:radius "1" . 
      bd:serviceParam wikibase:distance ?distance .
    } 
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
} ORDER BY ?distance LIMIT 100
Try it!

Ten largest islands in the world

# Ten largest islands in the world
# Inspired by this infographic: https://redd.it/a6423t

#defaultView:ImageGrid
SELECT DISTINCT ?island ?islandLabel ?islandImage WHERE {
  # Instances of island (or of subclasses of island)
  ?island (wdt:P31/wdt:P279*) wd:Q23442.
  # Optionally with an image
  OPTIONAL { ?island wdt:P18 ?islandImage. }
  # Get the area of the island
  # Use the psn: prefix to normalize the values to a common unit of area
  ?island p:P2046/psn:P2046/wikibase:quantityAmount ?islandArea.
  # Use the label service to automatically fill ?islandLabel
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER BY DESC(?islandArea)
LIMIT 10
Try it!

City gates in the Dutch province of Zeeland

select ?town ?townLabel ?gate ?gateLabel where {
  # Municipalities within the province 
  ?muni wdt:P31 wd:Q2039348;
        wdt:P131 wd:Q705.
  # Instances of city gate located within any of the municipalities
  ?gate wdt:P31 wd:Q82117;
        wdt:P131 ?muni;
  # The Location (usually Town) that the gate is in
        wdt:P276 ?town.
        
  SERVICE wikibase:label { bd:serviceParam wikibase:language "nl". }
}
Try it!

Glaciers map

#by Jura1, 2021-05-21
#defaultView:Map{"hide":["?coor","?area_scale_km"], "layer": "?area_scale_km"}
SELECT ?item ?itemLabel ?itemDescription ?coor ?area_sqkm ?area_scale_km
{
	?item wdt:P31/wdt:P279* wd:Q35666 . 
    OPTIONAL { ?item wdt:P625 ?coor }
    OPTIONAL { ?item p:P2046 [ a wikibase:BestRank; psn:P2046/wikibase:quantityAmount ?area_sqm ] . 
              BIND( ROUND(?area_sqm/10000)/100 as ?area_sqkm)
              BIND( strlen(str(ROUND(?area_sqm/1000000))) as ?area_scale_km)
             }  
	SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}

Try it!

Demography

Birthplaces of humans named Antoine

# Coordinates of the birth places of people named Antoine
#defaultView:Map
SELECT ?item ?itemLabel ?coord
WHERE
{
  ?item wdt:P31 wd:Q5 .   # human
  ?item wdt:P735 wd:Q15235674.
  ?item wdt:P19 ?place.
  ?place wdt:P625 ?coord.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "fr". }
}
Try it!

Average lifespan by occupation

# Select the desired columns and get labels
SELECT ?occ ?occLabel ?avgAge ?avgBirthYear ?count
WHERE
{
  {
    # Group the people by their occupation and calculate age
    SELECT
      ?occ
        (count(?p) as ?count)
        (round(avg(?birthYear)) as ?avgBirthYear)
        (avg(?deathYear - ?birthYear) as ?avgAge)
    WHERE {
      {
        # Get people with occupation + birth/death dates; combine multiple birth/death dates using avg
        SELECT
          ?p
            ?occ
            (avg(year(?birth)) as ?birthYear)
            (avg(year(?death)) as ?deathYear)
        WHERE {
           ?p  wdt:P31 wd:Q5 ;
              wdt:P106 ?occ ;
              p:P569/psv:P569 [
                wikibase:timePrecision "9"^^xsd:integer ; # precision of at least year
                wikibase:timeValue ?birth ;
              ] ;
              p:P570/psv:P570 [
                wikibase:timePrecision "9"^^xsd:integer ; # precision of at least year
                wikibase:timeValue ?death ;
              ] .
        }
        GROUP BY ?p ?occ
      }
    }
    GROUP BY ?occ
  }
 
  FILTER (?count > 300) # arbitrary number to weed out values with 'few' observations
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . }
}
ORDER BY ASC(?avgAge)
Try it!

Items with the most birth dates

SELECT ?person (COUNT(?date) AS ?dateC) {
  ?person wdt:P569 ?date
}
GROUP BY ?person
HAVING (?dateC > 2)
ORDER BY DESC (?dateC)
LIMIT 100
Try it!

Things/people with most children

SELECT ?parent ?parentLabel ?count
WHERE
{
  {
    SELECT ?parent (COUNT(?child) AS ?count)
    WHERE
    {
      ?parent wdt:P40 ?child.
    }
    GROUP BY ?parent
    ORDER BY DESC(?count)
    LIMIT 10
  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER BY DESC(?count)
LIMIT 10
Try it!

Population growth in Suriname from 1960 onward

#defaultView:LineChart
SELECT ?year ?population {
  wd:Q730 p:P1082 ?p .
  ?p pq:P585 ?year ;
     ps:P1082 ?population .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
ORDER BY ?year
Try it!

Number of dead people by month since 2000

SELECT  ?yearmonth (COUNT(?person) as ?count)
WHERE
{
  ?person wdt:P31 wd:Q5;
          p:P570/psv:P570 [
                wikibase:timePrecision ?precision ;
                wikibase:timeValue ?date ;
              ] .
  BIND(CONCAT(STR(YEAR(?date)),"-",STR(MONTH(?date))) as ?yearmonth).
  FILTER( ?date >= "2000-01-01T00:00:00"^^xsd:dateTime )
  FILTER( ?precision >= "10"^^xsd:integer ) # precision of at least month
}
GROUP BY ?yearmonth
Try it!

Politics

Dutch general election 2017

Candidates for the Dutch general election in 2017

SELECT ?item ?itemLabel ?twitter ?LinkedIN ?politieke_partij ?politieke_partijLabel ?positie_op_lijst
WHERE {
  ?item p:P3602 ?node .
    OPTIONAL { ?item wdt:P2002 ?twitter }
    OPTIONAL { ?item wdt:P2035 ?LinkedIN }
    ?node ps:P3602 wd:Q16061881 .
    OPTIONAL { ?node pq:P1545 ?positie_op_lijst }
    OPTIONAL { ?node pq:P1268 ?politieke_partij }
    OPTIONAL { ?node pq:P2035 ?LinkedIN }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],nl" }
}
Try it!

Gender distribution in the candidates for the Dutch general election 2017

#Kandidaten voor de Nederlandse tk verkiezingen van 2017
#defaultView:Dimensions
SELECT ?positie_op_lijst ?genderLabel ?politieke_partijLabel WHERE {
  ?item p:P3602 ?node.
  ?item wdt:P21 ?gender.
  ?node ps:P3602 wd:Q16061881 .
  ?node pq:P1545 ?positie_op_lijst.
  ?node pq:P1268 ?politieke_partij.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],nl". }
}
Try it!

Candidates for the Dutch general election 2017 living in Antwerp, Belgium

SELECT ?item ?itemLabel ?twitter ?LinkedIN ?politieke_partij ?politieke_partijLabel ?positie_op_lijst WHERE {
  ?item p:P3602 ?node.
  ?item wdt:P551 wd:Q12892.
  OPTIONAL { ?item wdt:P2002 ?twitter. }
  OPTIONAL { ?item wdt:P2035 ?LinkedIN. }
  ?node ps:P3602 wd:Q16061881.
  OPTIONAL { ?node pq:P1545 ?positie_op_lijst. }
  OPTIONAL { ?node pq:P1268 ?politieke_partij. }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],nl". }
}
Try it!

Candidates for the Dutch general election 2017 living abroad

#defaultView:Map
SELECT ?item ?itemLabel ?coordinates WHERE {
  ?item p:P3602 ?node.
  ?item wdt:P551 ?residence .
  ?residence wdt:P17 ?country ;
             wdt:P625 ?coordinates .
  ?node ps:P3602 wd:Q16061881.
  FILTER (?country != wd:Q55)
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],nl". }
}
Try it!

Occupations of candidates of the Dutch general election 2017

#Kandidaten voor de Nederlandse TK verkiezingen van 2017
#defaultView:Dimensions
SELECT ?positie_op_lijst ?genderLabel ?occupationLabel ?politieke_partijLabel WHERE {
  VALUES ?politieke_partij {wd:Q747910 wd:Q275441}
  ?item p:P3602 ?node.
  ?item wdt:P21 ?gender.
  ?item wdt:P106 ?occupation.
  ?node ps:P3602 wd:Q16061881.
  ?node pq:P1545 ?positie_op_lijst.
  ?node pq:P1268 ?politieke_partij.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],nl". }
}
Try it!

Gender balance of members of Irish parliament

SELECT ?genderlabel (COUNT(?genderlabel) as ?total)
WHERE
{
   ?subj wdt:P39 wd:Q654291  .
   ?subj wdt:P21 ?gender .
 
   ?gender rdfs:label ?genderlabel filter (lang(?genderlabel) = "en") .
   ?subj rdfs:label ?label filter (lang(?label) = "en")
}
GROUP BY ?genderlabel
Try it!

Assemblies by number of seats

SELECT DISTINCT ?item ?title ?seats ?jurisdiction (YEAR(?inception) AS ?start) (YEAR(?dissolution) AS ?end)
WHERE
{
  ?item wdt:P31/wdt:P279* wd:Q1752346 .
  OPTIONAL { ?item wdt:P1342 ?seats . }
  OPTIONAL {
    ?item wdt:P1001 ?j .
    ?j rdfs:label ?jurisdiction filter (lang(?jurisdiction) = "en") .
  }
  OPTIONAL { ?item wdt:P571 ?inception . }
  OPTIONAL { ?item wdt:P576 ?dissolution . }
  OPTIONAL { ?item rdfs:label ?title filter (lang(?title) = "en") . }
}
ORDER BY DESC(?seats) ?title
Try it!

List of countries by age of the head of government

#added by Jura1, rev. 2016-11-08
SELECT DISTINCT ?age ?country ?countryLabel ?hgovernment ?hgovernmentLabel
{
  ?country wdt:P31 wd:Q3624078 .
  FILTER NOT EXISTS {?country wdt:P31 wd:Q3024240}
  ?country p:P6 ?statement .    
  ?statement ps:P6 ?hgovernment .
  ?country wdt:P6 ?hgovernment .
  FILTER NOT EXISTS { ?statement pq:P582 ?x } 
  ?hgovernment wdt:P569 ?dob . BIND(YEAR(now())-YEAR(?dob) as ?age)
  FILTER(?age>=65)
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
ORDER BY DESC(?age)
Try it!

Number of ministers who are themselves children of a minister, per country

SELECT ?cc (COUNT(DISTINCT ?child) AS ?number) {
  ?child wdt:P31 wd:Q5 ; # Looking for real humans and not fictional ones
         wdt:P39/wdt:P279* wd:Q83307 ;
         (wdt:P22|wdt:P25) [wdt:P39/wdt:P279* wd:Q83307] ;
         wdt:P27/wdt:P901 ?cc
}
GROUP BY ?cc
ORDER BY DESC(?number)
Try it!

Members of the French National Assembly born out of France

SELECT DISTINCT ?item ?itemLabel ?placeLabel ?countryLabel
WHERE
{
  ?item wdt:P39 wd:Q3044918 .
  ?item wdt:P19 ?place .
  ?place wdt:P17 ?country .
  FILTER NOT EXISTS { ?place wdt:P17 wd:Q142 . }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "fr" . }
}
ORDER BY ?countryLabel ?itemLabel
Try it!

List of parliament buildings with pictures by country

#defaultView:ImageGrid
SELECT ?building ?buildingLabel ?country ?countryLabel ?picture
WHERE
{
  ?building wdt:P31 wd:Q7138926 .
  ?building wdt:P18 ?picture .
  OPTIONAL { ?building wdt:P17 ?country } .   #if available
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
  }
}
ORDER BY ?countryLabel
LIMIT 188
Try it!

Number of jurisdictions by driving side

SELECT ?sideLabel (COUNT(?jurisdiction) AS ?count)
WHERE
{
  ?jurisdiction wdt:P1622 ?side.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
GROUP BY ?sideLabel
ORDER BY ?sideLabel
Try it!

Timeline of mayors of Amsterdam, the Netherlands

#defaultView:Timeline
select ?mayor ?mayorLabel ?start ?end where {
  ?mayor p:P39 ?position.
  ?position ps:P39 wd:Q13423495;
            pq:P580 ?start;
            pq:P582 ?end.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],nl,en". }
}
Try it!

Current U.S. members of the Senate with district, party and date they assumed office

select ?senator ?senatorLabel ?districtLabel ?partyLabel ?assumedOffice (sample(?image) as ?image) where {
  # Get all senators
  ?senator p:P39 ?posheld; # With position held
           p:P102 ?partystatement. # And with a certain party
  
  # Get the party
  ?partystatement ps:P102 ?party.
  minus { ?partystatement pq:P582 ?partyEnd. } # but minus the ones the senator is no longer a member of
  minus { ?party wdt:P361 ?partOf. } # and the 'Minnesota Democratic–Farmer–Labor Party' and such
  
  # Check on the position in the senate
  ?posheld ps:P39 wd:Q4416090; # Position held is in the senate
           pq:P768 ?district;
           pq:P580 ?assumedOffice. # And should have a starttime
  
  minus { ?posheld pq:P582 ?endTime. } # But not an endtime 
  
  # Add an image
  optional { ?senator wdt:P18 ?image. }
         
  service wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
} group by ?senator ?senatorLabel ?districtLabel ?partyLabel ?assumedOffice order by ?senatorLabel
Try it!

Economics and Business

Map of places of birth of dead economists, colour-coded by era

#defaultView:Map
SELECT DISTINCT ?person ?name ?birthplace ?birthyear ?coord ?layer WHERE {
{?person wdt:P106 wd:Q188094} UNION {?person wdt:P101 wd:Q8134}
?person wdt:P570 ?dod;
   wdt:P19 ?place .
?place wdt:P625 ?coord
OPTIONAL { ?person wdt:P569 ?dob }
BIND(YEAR(?dob) as ?birthyear)
BIND(IF( (?birthyear < 1700), "Pre-1700", IF((?birthyear < 1751), "1700-1750", IF((?birthyear < 1801), "1751-1800", IF((?birthyear < 1851), "1801-1850", IF((?birthyear < 1901), "1851-1900", IF((?birthyear < 1951), "1901-1950", "Post-1950") ) ) ) )) AS ?layer )
?person rdfs:label ?name filter (lang(?name) = "en")
?place rdfs:label ?birthplace filter (lang(?birthplace) = "en")
} ORDER BY ?birthyear
Try it!

Distinct billionaires

The following query uses these:

  • Properties: net worth (P2218)     , place of birth (P19)     
    #title: Distinct billionaires
    SELECT ?locationLabel ?item ?itemLabel (MAX(?billion) as ?billions)
    WHERE
    {
      ?item wdt:P2218 ?worth.
      ?item wdt:P19 ?location .
      
      FILTER(?worth>1000000000).
      BIND(?worth/1000000000 AS ?billion).
      SERVICE wikibase:label { bd:serviceParam wikibase:language "en,de". }
    }
    GROUP BY ?locationLabel ?item ?itemLabel
    ORDER BY DESC(?billions)
    

Countries that have adopted a cryptocurrency as legal tender

The following query uses these:

  • Properties: instance of (P31)     , currency (P38)     , subclass of (P279)     
    # Countries that have adopted a cryptocurrency as legal tender
    SELECT ?country ?countryLabel ?currency ?currencyLabel
    WHERE 
    {
      ?country wdt:P31 wd:Q6256.                # Instances of country
      ?country wdt:P38 ?currency.               # Country has currency
      ?currency wdt:P31/wdt:P279* wd:Q13479982. # Currency is instance or subclass of cryptocurrency
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    }
    

Business listed on NYSE and NASDAQ along with their ticker symbols

The following query uses these:

  • Properties: stock exchange (P414)     , ticker symbol (P249)     
    # Business listed on NYSE and NASDAQ along with their ticker symbols
    SELECT DISTINCT ?id ?idLabel ?exchangesLabel ?ticker WHERE {
      SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
      ?id p:P414 ?exchange.
      VALUES ?exchanges { wd:Q13677 wd:Q82059 }
      ?exchange ps:P414 ?exchanges;
        pq:P249 ?ticker.
    }
    

Science

Biology and Medicine

Diseases

The number of existing translations for diseases in Wikidata

Items used: disease (Q12136)

SELECT ?disease ?doid ?enLabel (count(?language) as ?languages)
WHERE
{
  ?disease wdt:P699 ?doid ;
             rdfs:label ?label ;
             rdfs:label ?enLabel .
    FILTER (lang(?enLabel) = "en")
   
    BIND (lang(?label) AS ?language)
}
group by ?disease ?doid ?enLabel
order by desc(?languages)
Try it!
A network of Drug-disease interactions on infectious diseases (Source: Disease Ontology, NDF-RT and ChEMBL)
#defaultView:Graph
SELECT DISTINCT ?item ?itemLabel ?rgb ?link
WHERE
{
  VALUES ?toggle { true false }
  ?disease wdt:P699 ?doid;
           wdt:P279+ wd:Q18123741;
           wdt:P2176 ?drug.
  ?drug rdfs:label ?drugLabel.
    FILTER(LANG(?drugLabel) = "en").
  ?disease rdfs:label ?diseaseLabel.
    FILTER(LANG(?diseaseLabel) = "en").
  BIND(IF(?toggle,?disease,?drug) AS ?item).
  BIND(IF(?toggle,?diseaseLabel,?drugLabel) AS ?itemLabel).
  BIND(IF(?toggle,"FFA500","7FFF00") AS ?rgb).
  BIND(IF(?toggle,"",?disease) AS ?link).
}
Try it!
The number of Wikidata items on Diseases and the percentage of those with a pointer to the Disease Ontology
SELECT (COUNT(?disease) AS ?total) (SUM(?ref) AS ?byDO) (100*?byDO/?total AS ?percent)
WHERE
{
  {?disease wdt:P31 wd:Q12136 }
  UNION
  {?disease wdt:P279 wd:Q12136 .}
  OPTIONAL {
    ?disease p:P699 ?statement.
    BIND(1 AS ?ref).
  }
}
Try it!

Genes

Human genes updated this week
SELECT DISTINCT ?item ?ncbi_gene ?date_modified
WHERE
{
  ?item wdt:P351 ?ncbi_gene ;
          wdt:P703 wd:Q15978631 ;
          schema:dateModified ?date_modified .
    BIND (now() - ?date_modified as ?date_range)
    FILTER (?date_range < 8)
}
Try it!

Variants

Counts of gene-variant types sourced from the CIViC database
#defaultView:BarChart
SELECT  ?variant_typeLabel (count(?variant_typeLabel) as ?counts)
WHERE
{
  ?item wdt:P3329 ?civic_id ;
          wdt:P31 ?variant_type .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
GROUP BY ?variant_typeLabel
ORDER BY ?counts
Try it!
Which variant of which gene predicts a positive prognosis in colorectal cancer
SELECT ?geneLabel ?variantLabel
WHERE
{ 
  VALUES ?disease {wd:Q188874}
    ?variant wdt:P3358 ?disease ; # P3358 Positive prognostic predictor
          wdt:P3433 ?gene . # P3433 biological variant of
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
Try it!
Variants that are associated with renal cell carcinoma
# variants that are associated with renal cell carcinoma
SELECT DISTINCT ?civic_id ?item ?itemLabel
WHERE
{
  VALUES ?property {
                      wdt:P3356 # positive diagnostic predictor
                      wdt:P3357 # negative diagnostic predictor
                      wdt:P3358 # positive prognostic predicator
                      wdt:P3359 # negative prognostic predictor
                     }
    ?item wdt:P3329 ?civic_id .
    {?item  ?property wd:Q1164529.} # wd:Q1164529 = renal cell carcinoma
    UNION
    {?item p:P3354 ?o . # positive therapeutic predictor
     ?o pq:P2175 wd:Q1164529 .}
    UNION
    {?item p:P3354 ?o . # negative therapeutic predictor
     ?o pq:P2175 wd:Q1164529 .}
     
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
Try it!
PubMed references in CIViCdb
# variants that are associated with renal cell carcinoma
SELECT DISTINCT  ?reference ?referenceLabel ?pmid
WHERE
{
  ?item wdt:P3329 ?civicId ;
          ?property  ?object .
    ?object prov:wasDerivedFrom ?provenance .
    ?provenance pr:P248 ?reference .
    ?reference wdt:P31 wd:Q13442814 ;
               wdt:P698 ?pmid .
   
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
Try it!
Variant counts by predictor type
#defaultView:BubbleChart
SELECT  ?propertyLabel (count(?prognostic_type) as ?counts)
WHERE
{
  VALUES ?prognostic_type {wdt:P3354 wdt:P3355 wdt:P3356 wdt:P3357 wdt:P3358 wdt:P3359}
    ?item wdt:P3329 ?civic_id ;
          ?prognostic_type ?prognostic_value .
    ?property wikibase:directClaim ?prognostic_type . 
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
}
GROUP BY ?propertyLabel ?prognostic_typeLabel
ORDER BY ?counts
Try it!

Proteins

Get Wikidata - UniprotId mappings for homo sapiens
SELECT ?item ?itemLabel ?uniprotid ?tax_node
WHERE
{
  ?item wdt:P352 ?uniprotid ;
          wdt:P703 wd:Q15978631 .
   
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
Try it!

Metabolites

Metabolites and the species where they are found in
PREFIX pr: <http://www.wikidata.org/prop/reference/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX prov: <http://www.w3.org/ns/prov#>

SELECT ?compound ?compoundLabel ?speciesLabel ?sourceLabel ?doi ?wpid WHERE {
  ?compound wdt:P31 wd:Q11173.
  MINUS { ?compound wdt:P31 wd:Q8054. }
  ?compound p:P703 ?statement.
  ?statement rdf:type wikibase:BestRank.
  ?statement ps:P703 ?species.
  OPTIONAL {
    ?statement (prov:wasDerivedFrom/pr:P248) ?source.
    OPTIONAL { ?source wdt:P2410 ?wpid. }
    OPTIONAL { ?source wdt:P356 ?doi. }
  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER BY ASC(?compound)
Try it!
Metabolite-metabolite interactions (mostly conversions) and their pKa change (federated query)

Federated query using the WikiPathways SPARQL endpoint to retrieve interaction information. The dimensions plot show the pKa changes during metabolite-metabolite interaction. It must be noted here that many very basic or very acidic are reported in pathways as the uncharged structure, whereas in normal biological pathways these compounds are charged and then have quite different pKa charges.

#defaultView:Dimensions
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wp:    <http://vocabularies.wikipathways.org/wp#>
PREFIX dcterms: <http://purl.org/dc/terms/>
SELECT DISTINCT ?wpid ?metaboliteLabel ?pKa ?pKa2 ?metabolite2Label ?wpid2
WITH {
  SELECT ?wpid ?source_pathway ?metabolite ?pKa ?pKa2 ?metabolite2 ?wpid2
  WHERE {
    # VALUES ?wpid { "WP550" }
    ?pathway wdt:P2410 ?wpid ;
             wdt:P527 ?metabolite ;
             wdt:P2888 ?source_pathway .
    ?metabolite wdt:P1117 ?pKa .

    SERVICE <http://sparql.wikipathways.org/sparql> {
      ?wp_mb1 wp:bdbWikidata ?metabolite .
      ?wp_mb1 dcterms:isPartOf ?interaction .
      ?interaction rdf:type wp:Interaction .
      ?wp_mb2 dcterms:isPartOf ?interaction .
      ?wp_mb2 wp:bdbWikidata ?metabolite2 .
      FILTER (?wp_mb1 != ?wp_mb2)
    }
  }
} AS %result
WHERE {
  INCLUDE %result
  ?metabolite2 wdt:P1117 ?pKa2 .
  ?pathway2 wdt:P2410 ?wpid2 ;
             wdt:P527 ?metabolite2 ;
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!

Taxon

Asterophryinae parent taxon reverse graph
#defaultView:Graph
PREFIX gas: <http://www.bigdata.com/rdf/gas#>

SELECT ?item ?itemLabel ?pic ?linkTo
WHERE
{
  SERVICE gas:service {
    gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.SSSP" ;
                gas:in wd:Q1968598;
                gas:traversalDirection "Reverse" ;
                gas:out ?item ;
                gas:out1 ?depth ;
                gas:maxIterations 3 ;
                gas:linkType wdt:P171 .
  }
  OPTIONAL { ?item wdt:P171 ?linkTo }
  OPTIONAL { ?item wdt:P18 ?pic }
  SERVICE wikibase:label {bd:serviceParam wikibase:language "en" }
}
Try it!

Pathways

All human pathways from Wikipathways
SELECT ?pathway ?pathwayLabel ?wpid WHERE {
   ?pathway wdt:P2410 ?wpid ;
            wdt:P703 wd:Q15978631 .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!
Biomarkers in Wikidata which interact with proteins in human pathways from Wikipathways
prefix void:  <http://rdfs.org/ns/void#> 
prefix pav:   <http://purl.org/pav/> 
prefix xsd:   <http://www.w3.org/2001/XMLSchema#> 
prefix freq:  <http://purl.org/cld/freq/> 
prefix biopax: <http://www.biopax.org/release/biopax-level3.owl#> 
prefix skos:  <http://www.w3.org/2004/02/skos/core#> 
prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> 
prefix rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
prefix gpml:  <http://vocabularies.wikipathways.org/gpml#> 
prefix wp:    <http://vocabularies.wikipathways.org/wp#> 
prefix dcterms: <http://purl.org/dc/terms/> 
prefix wprdf: <http://rdf.wikipathways.org/> 
prefix prov:  <http://www.w3.org/ns/prov#> 
prefix foaf:  <http://xmlns.com/foaf/0.1/> 
prefix dc:    <http://purl.org/dc/elements/1.1/> 

SELECT DISTINCT ?biomarkerLabel ?proteinLabel ?geneID ?WP_gene ?PathwayID ?PathwayName #results that are displayed.
WHERE {
  VALUES ?biomarker {wd:Q420633 wd:Q27125809 wd:Q422462} #you can add more biomarkers here if needed, separated by a space.
  ?biomarker wdt:P31 wd:Q11173. #Stating that all biomarkers have to be "instance of" "chemical compound" (you could ommit this, but query will probably take longer).
  ?biomarker wdt:P638 ?pdbID .  #Checking if a biomarker has a Protein Databank ID (PDB) -> meaning the metabolite can interact with a protein.
  ?protein wdt:P31 wd:Q8054 . #Stating that all proteins are "instance of" "protein"
  ?protein wdt:P638 ?pdbID . #Checking which proteins have a PDB ID, which we queried previously in relationship to the biomarkers.
  ?protein wdt:P702 ?gene . #Connecting the protein to a gene ("encoded by" relationship) -> to get an identifier we can use later in federated WikiPathways query.
  ?gene wdt:P703 wd:Q15978631 . #Now removing all genes that are not found in species "Homo sapiens". -> This info is not always available for proteins in WikiData.
  ?gene wdt:P2888 ?geneID . #Getting the "exact match" identifier for the gene, related to the protein, related to the biomarker.
  
  ##The IRI from Wikidata starts with http:// , where the one from WikiPathways starts with https:// , so we need to rewrite the IRI
    BIND(                      # Bind the created IRI into a new variable (called ?newIRI)
        IRI(                   # Convert the string back to an IRI
          CONCAT(              # Concatenate item 1 and 2 together as one string
               "https",        # First item to concat (more items can be added with a comma
              #Second item to concat:
               SUBSTR(         # Obtain a substring
                 STR(?geneID), # Convert the geneID IRI from Wikidata to a string,
                 5)            # removing the first 5 characters (<http)
        )) AS ?newIRI          # Name for the new variable 
    )
    
  SERVICE <http://sparql.wikipathways.org/sparql> { #Connecting to the WikiPathways SPARQL endpoint.
     ?WP_pathway a wp:Pathway . #Stating a ?WP_pathway is indeed a pathway in the WikiPathways RDF .
     ?WP_pathway wp:organismName "Homo sapiens" . #Removing all PWs not for species Homo sapiens.
     ?WP_pathway dc:identifier ?PathwayID . #Query the identifier of the pathway in WPs.
     ?WP_pathway dc:title ?PathwayName . #Obtaining the name of the pathway. 
    
     ?WP_gene a wp:Protein . #Stating that a ?WP_gene is a Protein DataNode (you could ommit this, to also get all DataNodes modeled as GeneProducts out, but query will take longer).
     ?WP_gene wp:bdbEntrezGene ?newIRI . #Connecting the previously queried "exact match" from WikiData to the NCBI/Entrez Gene ID in WPs. 
     ?WP_gene dcterms:isPartOf ?WP_pathway . #Connecting the WP_gene to the WP_pathway.
     
   }
 OPTIONAL {?biomarker rdfs:label ?biomarkerLabel. #Create a label (aka name) for the biomarkers in WikiData, without using the service query. 
FILTER(LANG(?biomarkerLabel) = "en").
}
   OPTIONAL {?protein rdfs:label ?proteinLabel. #Create a label(aka name) for the proteins in WikiData, without using the service query.
FILTER(LANG(?proteinLabel) = "en").
}
 
}
ORDER BY DESC (?biomarkerLabel) #Order results for biomarkers
Try it!
Ranking of most cited work in WikiPathways
SELECT ?citation ?citationLabel (count(?pathway) as ?times_cited) WHERE {
  ?pathway wdt:P2410 ?WikiPathwaysID ;
           wdt:P2860 ?citation .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  }
GROUP BY ?pathway ?citation ?citationLabel
Try it!
Gene and metabolite counts per pathway
#Gene and metabolite counts per path
#defaultView:ScatterChart
SELECT ?path ?genes ?metabolites ?pathway WHERE {
  {SELECT DISTINCT ?path (COUNT(?pwPart) AS ?genes) WHERE {
      ?path wdt:P2410 ?WikipathsID.
      ?path wdt:P527 ?pwPart.
      ?pwPart wdt:P31 wd:Q7187.
      SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
    }
    GROUP BY ?path ?genes
  }
  {SELECT DISTINCT ?path (COUNT(?pwPart) AS ?metabolites) WHERE {
      ?path wdt:P2410 ?WikipathsID.
      ?path wdt:P527 ?pwPart.
      ?pwPart wdt:P31 wd:Q11173.
      SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
    }
    GROUP BY ?path ?metabolites
  }
  OPTIONAL { ?path rdfs:label ?pathway. }
}
ORDER BY DESC(?genes)
Try it!
Biological pathways with protein structures in the PDB database
SELECT ?pathway ?pathwayLabel ?WikiPathways ?Reactome (COUNT(DISTINCT ?protein) as ?count) WHERE {
  VALUES ?pathwayType { wd:Q4915012 wd:Q2996394 }
  ?pathway wdt:P31 ?pathwayType .
  { ?pathway wdt:P527/wdt:P688 ?protein . } UNION { ?pathway wdt:P527 ?protein . }
  ?protein wdt:P638 ?PDBID .
  OPTIONAL { ?pathway wdt:P2410 ?WikiPathways }
  OPTIONAL { ?pathway wdt:P3937 ?Reactome }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
} GROUP BY ?pathway ?pathwayLabel ?WikiPathways ?Reactome
  ORDER BY DESC(?count)
Try it!
Get known variants reported in CIViC database (Q27612411) of genes reported in a Wikipathways pathway: Bladder cancer (Q30230812)
SELECT DISTINCT ?pathway ?pathwayLabel ?pwpart ?pwpartLabel ?variant ?variantLabel ?disease?diseaseLabel WHERE {

   VALUES ?predictor {p:P3354 p:P3355 p:P3356 p:P3357 p:P3358 p:P3359}
   VALUES ?predictorQualifier {pq:P2175}
   VALUES ?wpID {"WP2828"}
  
   ?pathway wdt:P2410 ?wpID ; # Pathways has a Wikipathways identifier
          wdt:P527 ?pwpart . # which contains pathways parts
  
   ?disease wdt:P279+ wd:Q504775 .  # The disease is a subclass of urinary bladder cancer 
                                    # based on annotations in the Disease ontology
   ?variant wdt:P3329 ?civicID ; # a variant known in CIViC 
             ?predictor ?node ; # has a predicting relation with diseases
                                   # labeled as being a subclass of urinary bladder cancer
             wdt:P3433 ?pwpart .  # variant is biological variant of
   
   {?node ?predictorStatement ?drug_label ;
              ?predictorQualifier ?disease .}
   UNION 
   {
      ?node ?predictorStatement ?disease  .
   }
   SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Try it!
Known interaction types in Wikipathways for a pathway with Identifier WP716 (federated query)
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX wp: <http://vocabularies.wikipathways.org/wp#>
SELECT DISTINCT ?interaction_type WHERE {
  VALUES ?wpid {"WP716"}
  ?item wdt:P2410 ?wpid ;
        wdt:P2888 ?source_pathway .
 
  SERVICE <http://sparql.wikipathways.org/sparql> {
     ?wp_pathway dc:identifier ?source_pathway .
     ?s dcterms:isPartOf ?wp_pathway, ?interaction .
     ?interaction rdf:type wp:Interaction .
     ?interaction rdf:type ?interaction_type .
     ?interaction wp:participants ?participants .
  }
}
Try it!
Local annotations from Wikipathways using Federated query on a Pathway with identifier WP716 (federated query)
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX wp: <http://vocabularies.wikipathways.org/wp#>
SELECT DISTINCT ?item ?pw_annotation  WHERE {
  VALUES ?wpid {"WP716"}
  ?item wdt:P2410 ?wpid ;
        wdt:P2888 ?source_pathway .
 
  SERVICE <http://sparql.wikipathways.org/sparql> {
     ?wp_pathway dc:identifier ?source_pathway .
     ?wp_pathway wp:ontologyTag ?pw_annotation .
     # ?pw_annotation rdfs:label ?annotation_label .
   }
}
Try it!

Find drugs for cancers that target genes related to cell proliferation

; worked on 2018-12-17 :)

#cases where a drug physically interacts with the product of gene known to be genetically associated a disease
#these cases may show opportunities to repurpose a drug for a new disease
#See http://database.oxfordjournals.org/content/2016/baw083.long  and
#http://drug-repurposing.nationwidechildrens.org/search
#an example that was recently validated involved a new link between Metformin wd:Q19484 and cancer survival
#https://jamia.oxfordjournals.org/content/22/1/179
#currently set up to find drugs for cancers that target genes related to cell proliferation
#adapt by changing constraints (e.g. to 'heart disease' Q190805) or removing them
SELECT ?drugLabel ?geneLabel ?biological_processLabel ?diseaseLabel
WHERE {
  ?drug wdt:P129 ?gene_product .   # drug interacts with a gene_product
  ?gene wdt:P688 ?gene_product .  # gene_product (usually a protein) is a product of a gene (a region of DNA)
  ?disease  wdt:P2293 ?gene .    # genetic association between disease and gene
  ?disease wdt:P279*  wd:Q12078 .  # limit to cancers wd:Q12078 (the * operator runs up a transitive relation..)
  ?gene_product wdt:P682 ?biological_process . #add information about the GO biological processes that the gene is related to 
  
   ?biological_process (wdt:P361|wdt:P279)* wd:Q14818032 .  # chain down subclass/part-of
   #Change the last statement (wd:Q14818032) to limit to genes related to certain biological processes (and their sub-processes):
      #cell proliferation wd:Q14818032 (Current example)
                #apoptosis wd:Q14599311

    #uncomment the next line to find a subset of the known true positives (there are not a lot of them in here yet; will lead to 4 drugs if biological process is cell proliferation 2018-12-17)
  #?disease wdt:P2176 ?drug .   # disease is treated by a drug
    SERVICE wikibase:label {
        bd:serviceParam wikibase:language "en" .
  }
}
LIMIT 1000
Try it!

Parent taxons of Blue Whale

#defaultView:Graph
SELECT ?item ?itemLabel ?pic ?linkTo
WHERE
{
  wd:Q42196 wdt:P171* ?item
  OPTIONAL { ?item wdt:P171 ?linkTo }
  OPTIONAL { ?item wdt:P18 ?pic }
  SERVICE wikibase:label {bd:serviceParam wikibase:language "en" }
}
Try it!

Mosquito species

# Species of mosquitoes
# added 2017-06
SELECT ?item ?taxonname WHERE {
  ?item wdt:P31 wd:Q16521 ;
        wdt:P105 wd:Q7432 ;
        wdt:P171* wd:Q7367 ;
        wdt:P225 ?taxonname .
}
Try it!

Taxons and what they are named after

SELECT ?taxon ?eponym ?taxonName ?eponymLabel
WHERE
{
  ?taxon wdt:P31 wd:Q16521;
         wdt:P225 ?taxonName;
         wdt:P138 ?eponym.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER BY ?eponym
Try it!

Biologists with Twitter accounts

SELECT DISTINCT ?personLabel (CONCAT("https://twitter.com/",?twitterName) AS ?twitterlink) ?pic
WHERE {
  ?person wdt:P2002 ?twitterName ;
    wdt:P106 ?occupation .
  OPTIONAL { ?person wdt:P18 ?pic . }
  ?occupation wdt:P279* wd:Q864503 . # all subclasses of biologists
   SERVICE wikibase:label {
     bd:serviceParam wikibase:language "en"
   }
}
Try it!

Cell lines with names that could also be URLs (Internet of Cell Lines).

SELECT * WHERE {
  {
    SELECT ?cell_line ?cell_line_name WHERE {
      ?cell_line wdt:P31 wd:Q21014462;
                 rdfs:label ?cell_line_name.
          FILTER(LANG(?cell_line_name) = "en").
          Filter REGEX(STR(?cell_line_name), "^[\\w\\-\\.]+\\.[A-z]+$")
    }
  }
  ?tld wdt:P31/wdt:P279* wd:Q14296;
       rdfs:label ?tld_name.
  FILTER(LANG(?tld_name) = "en").
  FILTER REGEX(STR(?cell_line_name), CONCAT(REPLACE(?tld_name, "\\.", "\\\\."), "$"), "i")
  BIND(URI(CONCAT("http://", ?cell_line_name)) as ?url)
}
Try it!

List of pharmaceutical drugs with picture

SELECT ?moleculeLabel ?formule ?picture ?molecule
WHERE
{
  ?molecule  wdt:P31 wd:Q12140
  ; wdt:P274 ?formule
  ; wdt:P117 ?picture 
  SERVICE wikibase:label {  bd:serviceParam wikibase:language "en, de" . }
}
ORDER BY ?moleculeLabel
Try it!

Organisms that are located in the female urogential tract and that have a gene with product indole

SELECT ?organism_name
WHERE
{  
  ?organism_item wdt:P276 wd:Q5880
  ; rdfs:label ?organism_name .
  ?gene wdt:P703 ?organism_item
  ; wdt:P1056 wd:Q319541 .
  FILTER (LANG(?organism_name) = "en") .   
}
Try it!

Threatened Species of Animals as per IUCN Classification

#title: Animals which are Threatened as per IUCN Red List 
# https://en.wikipedia.org/wiki/Conservation_status
# Common names are in English only

SELECT ?animal ?scientific_names ?common_names ?statusLabel where
{
  # hint:Prior hint:runLast true
   {
      SELECT DISTINCT ?animal (GROUP_CONCAT(distinct ?scientific_name; separator=", ") as ?scientific_names)  (GROUP_CONCAT(distinct ?common_name; separator=", ") as ?common_names) WHERE 
      {
 
        ?animal wdt:P141 ?status;
                wdt:P225 ?scientific_name;
                wdt:P1843 ?common_name.
        filter( ?status
           IN (
               wd:Q11394,  #Endangered
               wd:Q219127, #critcally endangered
               wd:Q278113  #vulnurable
              ) 
          ).
  
        # Only return common names in English
        FILTER(LANGMATCHES(LANG(?common_name), "en")) 
      }
      group by ?animal
   }.
   ?animal wdt:P141 ?status.
   SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
Animals which are Threatened as per IUCN Red List

Computer Science and Technology

List of computer files formats

SELECT DISTINCT ?idExtension ?extension ?mediaType ?idExtensionLabel
WHERE
{
  ?idExtension wdt:P31 wd:Q235557
  ; wdt:P1195 ?extension .
  OPTIONAL { ?idExtension wdt:P1163 ?mediaType }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
ORDER BY ?extension ?mediaType
Try it!

List of W3C standards

SELECT DISTINCT ?standard ?standardLabel ?website
WHERE
{
        ?standard wdt:P1462 wd:Q37033 .
        OPTIONAL{ ?standard wdt:P856 ?website }
        SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}
ORDER BY ?standardLabel
Try it!

Oldest software

SELECT ?software ?softwareLabel ?date (ROUND((NOW() - ?date)/365.2425) AS ?age)
{
  ?software wdt:P31/wdt:P139* wd:Q7397.
  OPTIONAL { ?software wdt:P571 ?date. }
  OPTIONAL { ?software p:P348/pq:P577 ?date. }
  FILTER(BOUND(?date)).
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER BY ?date
LIMIT 10
Try it!

Software written in Go programming language

SELECT DISTINCT ?instance_of ?instance_ofDescription ?instance_ofLabel ?official_website WHERE {
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  ?instance_of (wdt:P31/(wdt:P279*)) wd:Q341.
  OPTIONAL { ?instance_of wdt:P856 ?official_website. }
  ?instance_of wdt:P277 wd:Q37227.
}
Try it!

Free and open-source software written in Go programming language

SELECT DISTINCT ?instance_of ?instance_ofDescription ?instance_ofLabel ?official_website WHERE {
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  ?instance_of wdt:P31/wdt:P279* wd:Q341
  OPTIONAL { ?instance_of wdt:P856 ?official_website. }
  ?instance_of wdt:P277 wd:Q37227.
}
Try it!

Universities of main programming language authors

SELECT ?lang ?langLabel ?human ?humanLabel ?educatedat ?educatedatLabel ?coords
{
  ?lang wdt:P31/wdt:P279* wd:Q9143 .
  ?human wdt:P31 wd:Q5 .
  { ?lang wdt:P287 ?human } UNION { ?lang wdt:P170 ?human } UNION { ?lang wdt:P943 ?human } UNION { ?lang wdt:P178 ?human } .

  ?human wdt:P69 ?educatedat .
  ?educatedat wdt:P625 ?coords .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en,fr" }
}
LIMIT 100
Try it!

Websites with OpenAPI endpoints

SELECT ?database ?databaseLabel ?license ?licenseLabel ?value WHERE {
  ?database ?p ?wds .
  OPTIONAL { ?database wdt:P275 ?license }
  ?wds ?v ?value.
  ?wdP wikibase:statementProperty ?v.
  ?wdP wikibase:claim ?p.
  ?wds pq:P31 wd:Q27075870.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
} ORDER BY ASC(?databaseLabel)
Try it!

E-Readers that support the mobipocket file format

SELECT ?ereader ?ereaderLabel

WHERE {
  ?ereader wdt:P31  wd:Q726235 .
  ?ereader wdt:P1072 wd:Q1941622 .
 
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
   
}
  }
Try it!

Software applications ranked in descending order by the number of writable file formats

#defaultView:BubbleChart 
#title:Software applications ranked in descending order by the number of writable file formats
SELECT ?app ?appLabel (COUNT(?format) AS ?count)
WHERE {
  ?app (p:P31/ps:P31/wdt:P279) wd:Q7397 .
  ?app wdt:P1072 ?format .
            
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
    
}
  }

GROUP BY ?app ?appLabel
ORDER BY DESC(?count)
Software applications ranked in descending order by the number of writable file formats

Return a bubble chart of mediatypes by count of file formats

SELECT DISTINCT ?mediaType (COUNT (?ff) as ?count)
WHERE
{
  ?ff wdt:P31/wdt:P279* wd:Q235557.
  ?ff wdt:P1163 ?mediaType.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
}

GROUP BY ?mediaType 
ORDER BY DESC (?count)
Try it!

Erdos Numbers and images of people who have oral histories in the Computer History Museum's collection

#defaultView:ImageGrid
SELECT  ?personLabel  ?image ?Erdos

WHERE {
  ?person wdt:P485 wd:Q964035 .
  ?person wdt:P18 ?image .
  ?person wdt:P2021 ?Erdos
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "en" .
   
}
  }
Try it!

Chemistry

Chemical elements and their properties

SELECT ?elementLabel ?_boiling_point ?_melting_point ?_electronegativity ?_density ?_mass
WHERE
{
  ?element wdt:P31 wd:Q11344.
  ?element wdt:P2102 ?_boiling_point.
  ?element wdt:P2101 ?_melting_point.
  ?element wdt:P1108 ?_electronegativity.
  ?element wdt:P2054 ?_density.
  ?element wdt:P2067 ?_mass.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
LIMIT 100
Try it!

Chemical elements and their isotopes by number of neutrons (min/max)

SELECT ?element (SAMPLE(?symbol) AS ?symbol) (SAMPLE(?protons) AS ?protons) (MIN(?neutrons) AS ?minNeutrons) (MAX(?neutrons) AS ?maxNeutrons)
WHERE
{
  ?element wdt:P31 wd:Q11344;
           wdt:P1086 ?protons;
           wdt:P246 ?symbol.
  ?isotope wdt:P279 ?element;
           wdt:P1148 ?neutrons.
}
GROUP BY ?element
ORDER BY ?protons
Try it!

Colors of chemical compounds

#defaultView:BubbleChart
SELECT ?rgb ?colorLabel (COUNT(?compound) AS ?count)
WHERE
{
  ?compound wdt:P31 wd:Q11173;
            wdt:P462 ?color.
  OPTIONAL { ?color wdt:P465 ?rgb. }
  BIND(IF(BOUND(?rgb),?rgb,"CCCCCC") AS ?rgb).
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
GROUP BY ?rgb ?colorLabel
Try it!

All pKa data in Wikidata and the source titles

SELECT ?compound ?compoundLabel ?pKa ?source ?sourceLabel ?doi
WHERE
{
  ?compound wdt:P31 wd:Q11173 ; p:P1117 ?statement .
  ?statement rdf:type wikibase:BestRank ;
    ps:P1117 ?pKa .
  OPTIONAL {
    ?statement prov:wasDerivedFrom/pr:P248 ?source .
    OPTIONAL { ?source wdt:P356 ?doi . }
  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". } #English label
}
Try it!

All CAS registry numbers in Wikidata

SELECT DISTINCT ?compound ?compoundLabel ?cas
WHERE
{
  ?compound wdt:P231 ?cas .
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
Try it!

Chemical compounds in Wikidata sharing the same CAS registry number

#two chemical compounds with the same CAS registry number
SELECT DISTINCT ?cas ?compound1 ?compound1Label ?compound2 ?compound2Label WHERE {
  ?compound1 wdt:P231 ?cas .
  ?compound2 wdt:P231 ?cas .
  FILTER (?compound1 != ?compound2)
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
Try it!