Feedback

Share, discover and reuse the Linked Data has never been easier with a LinkedWiki Platform.

Reuse these data in your code

Query, endpoint and code for reusing the same data
https://query.wikidata.org/sparql
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> 
PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 

select distinct  ?countryLabel  ?date (xsd:integer(sum(?death)) as ?deaths)
where {
    ?disease wdt:P31 wd:Q3241045 ;
             wdt:P361 wd:Q83741704 ;
              wdt:P17 ?country;
             p:P1120 [
             ps:P1120 ?death ;
                      pq:P585 ?date 
             ]
             Filter(?death > 0)
  SERVICE wikibase:label {
       bd:serviceParam wikibase:language "en" .
  }
} 
GROUP by  ?countryLabel ?date
order by ?countryLabel ?date
Howto write a query SPARQL? (in French)
{{#sparql:PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> 
PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 

select distinct  ?countryLabel  ?date (xsd:integer(sum(?death)) as ?deaths)
where {
    ?disease wdt:P31 wd:Q3241045 ;
             wdt:P361 wd:Q83741704 ;
              wdt:P17 ?country;
             p:P1120 [
             ps:P1120 ?death ;
                      pq:P585 ?date 
             ]
             Filter(?death > 0)
  SERVICE wikibase:label {
       bd:serviceParam wikibase:language "en" .
  }
} 
GROUP by  ?countryLabel ?date
order by ?countryLabel ?date

| endpoint = https://query.wikidata.org/sparql
| chart=bordercloud.visualization.PivotTable
| options={"rowOrder":"key_a_to_z","rows":["countryLabel"],"cols":["date"],"aggregatorName":"Integer Sum","vals":["deaths"],"rendererName":"Table","showUI":false}
| log=2
}}
Howto install LinkedWiki in my wiki? Howto insert this graph in my wiki?
Test this script in a new tab.
<html>
    <head>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"  async></script>
    </head>
    <body onload="testQuery();">
        <script>
function testQuery(){
    var endpoint = "https://query.wikidata.org/sparql";
    var query = "PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> \n\
PREFIX bd: <http://www.bigdata.com/rdf#> \n\
PREFIX p: <http://www.wikidata.org/prop/> \n\
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> \n\
PREFIX ps: <http://www.wikidata.org/prop/statement/> \n\
PREFIX wd: <http://www.wikidata.org/entity/> \n\
PREFIX wdt: <http://www.wikidata.org/prop/direct/> \n\
PREFIX wikibase: <http://wikiba.se/ontology#> \n\
\n\
select distinct  ?countryLabel  ?date (xsd:integer(sum(?death)) as ?deaths)\n\
where {\n\
    ?disease wdt:P31 wd:Q3241045 ;\n\
             wdt:P361 wd:Q83741704 ;\n\
              wdt:P17 ?country;\n\
             p:P1120 [\n\
             ps:P1120 ?death ;\n\
                      pq:P585 ?date \n\
             ]\n\
             Filter(?death > 0)\n\
  SERVICE wikibase:label {\n\
       bd:serviceParam wikibase:language \"en\" .\n\
  }\n\
} \n\
GROUP by  ?countryLabel ?date\n\
order by ?countryLabel ?date\n\"

   // $('#bodyContentResearch').append(queryDataset);
    $.ajax({
                url: endpoint,
                dataType: 'json',
                data: {
                    queryLn: 'SPARQL',
                    query: query ,
                    limit: 'none',
                    infer: 'true',
                    Accept: 'application/sparql-results+json'
                },
                success: displayResult,
                error: displayError
        });
}

function displayError(xhr, textStatus, errorThrown) {
    console.log(textStatus);
    console.log(errorThrown);
}

function displayResult(data) {
    $.each(data.results.bindings, function(index, bs) {
        console.log(bs);
        $("body").append(JSON.stringify(bs) + "<hr/>");
    });
}

        </script>
    </body>
</html>
Test this script in a new tab (Careful, several charts need a API key).
Howto insert this graph in my html page?
<html>
    <head>
     <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">

     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.9.0/css/all.min.css">

     <script
            src="https://code.jquery.com/jquery-3.4.1.min.js"
            integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
            crossorigin="anonymous"> </script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"> </script>
     <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"> </script>

     <script type="text/javascript" src="https://bordercloud.github.io/sgvizler2/sgvizler2/sgvizler2.js" defer> </script>
     <script type="text/javascript" src="https://linkedwiki.com/js/initExampleHTML.js"  defer > </script>
    </head>
<body style="margin:0;">
<div id="sgvzl_example_query"
   data-sgvizler-endpoint="https://query.wikidata.org/sparql"
   data-sgvizler-query="PREFIX xsd: &lt;http://www.w3.org/2001/XMLSchema#&gt; 
PREFIX bd: &lt;http://www.bigdata.com/rdf#&gt; 
PREFIX p: &lt;http://www.wikidata.org/prop/&gt; 
PREFIX pq: &lt;http://www.wikidata.org/prop/qualifier/&gt; 
PREFIX ps: &lt;http://www.wikidata.org/prop/statement/&gt; 
PREFIX wd: &lt;http://www.wikidata.org/entity/&gt; 
PREFIX wdt: &lt;http://www.wikidata.org/prop/direct/&gt; 
PREFIX wikibase: &lt;http://wikiba.se/ontology#&gt; 

select distinct  ?countryLabel  ?date (xsd:integer(sum(?death)) as ?deaths)
where {
    ?disease wdt:P31 wd:Q3241045 ;
             wdt:P361 wd:Q83741704 ;
              wdt:P17 ?country;
             p:P1120 [
             ps:P1120 ?death ;
                      pq:P585 ?date 
             ]
             Filter(?death &gt; 0)
  SERVICE wikibase:label {
       bd:serviceParam wikibase:language &quot;en&quot; .
  }
} 
GROUP by  ?countryLabel ?date
order by ?countryLabel ?date
"
    data-sgvizler-chart='bordercloud.visualization.PivotTable'
    data-sgvizler-chart-options='{"rowOrder":"key_a_to_z","rows":["countryLabel"],"cols":["date"],"aggregatorName":"Integer Sum","vals":["deaths"],"rendererName":"Table","showUI":false}'
    data-sgvizler-endpoint_output_format='json'
    data-sgvizler-log='2'
    style='width:100%; height:auto;'  />

<script>
/*$(function() {
   sgvizler2.containerDrawAll({
       // Google Api key
       googleApiKey : "GOOGLE_MAP_API_KEY",
       // OpenStreetMap Access Token
       //  https://www.mapbox.com/api-documentation/#access-tokens
       osmAccessToken : "OSM_MAP_API_KEY"
     });
});*/
</script>

</body>
</html>
from SPARQLWrapper import SPARQLWrapper, JSON

sparql = SPARQLWrapper("https://query.wikidata.org/sparql")
sparql.setQuery("""
    PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> 
PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 

select distinct  ?countryLabel  ?date (xsd:integer(sum(?death)) as ?deaths)
where {
    ?disease wdt:P31 wd:Q3241045 ;
             wdt:P361 wd:Q83741704 ;
              wdt:P17 ?country;
             p:P1120 [
             ps:P1120 ?death ;
                      pq:P585 ?date 
             ]
             Filter(?death > 0)
  SERVICE wikibase:label {
       bd:serviceParam wikibase:language "en" .
  }
} 
GROUP by  ?countryLabel ?date
order by ?countryLabel ?date
""")
sparql.setReturnFormat(JSON)
results = sparql.query().convert()

for result in results["results"]["bindings"]:
    print(result)
    #print(result["label"]["value"])
Howto use SPARQL with Python ?
library(SPARQL) # SPARQL querying package
library(ggplot2)

# Step 1 - Set up preliminaries and define query
# Define the data.gov endpoint
    endpoint <- "https://query.wikidata.org/sparql"
# create query statement
    query <- "PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> 
PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 

select distinct  ?countryLabel  ?date (xsd:integer(sum(?death)) as ?deaths)
where {
    ?disease wdt:P31 wd:Q3241045 ;
             wdt:P361 wd:Q83741704 ;
              wdt:P17 ?country;
             p:P1120 [
             ps:P1120 ?death ;
                      pq:P585 ?date 
             ]
             Filter(?death > 0)
  SERVICE wikibase:label {
       bd:serviceParam wikibase:language "en" .
  }
} 
GROUP by  ?countryLabel ?date
order by ?countryLabel ?date
"
# Step 2 - Use SPARQL package to submit query and save results to a data frame
qd <- SPARQL(endpoint,query,curl_args=list(useragent=R.version.string))
df <- qd$results
SPARQL with R in less than 5 minutes
#!/usr/bin/env ruby
#
# Install sparql for Ruby
#   gem update --system
#   gem install sparql
#
require 'sparql/client'

endpoint = "https://query.wikidata.org/sparql"
sparql = <<-EOT
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> 
PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 

select distinct  ?countryLabel  ?date (xsd:integer(sum(?death)) as ?deaths)
where {
    ?disease wdt:P31 wd:Q3241045 ;
             wdt:P361 wd:Q83741704 ;
              wdt:P17 ?country;
             p:P1120 [
             ps:P1120 ?death ;
                      pq:P585 ?date 
             ]
             Filter(?death > 0)
  SERVICE wikibase:label {
       bd:serviceParam wikibase:language "en" .
  }
} 
GROUP by  ?countryLabel ?date
order by ?countryLabel ?date

EOT

#For Wikidata, the method get is required
#For other SPARQL endpoints, the method post is prefered
client = SPARQL::Client.new(endpoint, :method => :get)
rows = client.query(sparql)

puts "Number of rows: #{rows.size}"
for row in rows
  for key,val in row do
    # print "#{key.to_s.ljust(10)}: #{val}\t"
    print "#{key}: #{val}\t"
  end
  print "\n"
end
Doc Ruby for SPARQL 1.1
endpoint = 'https://query.wikidata.org/sparql';

query = ['PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>  '...
'PREFIX bd: <http://www.bigdata.com/rdf#>  '...
'PREFIX p: <http://www.wikidata.org/prop/>  '...
'PREFIX pq: <http://www.wikidata.org/prop/qualifier/>  '...
'PREFIX ps: <http://www.wikidata.org/prop/statement/>  '...
'PREFIX wd: <http://www.wikidata.org/entity/>  '...
'PREFIX wdt: <http://www.wikidata.org/prop/direct/>  '...
'PREFIX wikibase: <http://wikiba.se/ontology#>  '...
' '...
'select distinct  ?countryLabel  ?date (xsd:integer(sum(?death)) as ?deaths) '...
'where { '...
'    ?disease wdt:P31 wd:Q3241045 ; '...
'             wdt:P361 wd:Q83741704 ; '...
'              wdt:P17 ?country; '...
'             p:P1120 [ '...
'             ps:P1120 ?death ; '...
'                      pq:P585 ?date  '...
'             ] '...
'             Filter(?death > 0) '...
'  SERVICE wikibase:label { '...
'       bd:serviceParam wikibase:language "en" . '...
'  } '...
'}  '...
'GROUP by  ?countryLabel ?date '...
'order by ?countryLabel ?date '...
' '];

url_head = strcat(endpoint,'?query=');
url_query = urlencode(query);
format = 'text/tab-separated-values';
url_tail = strcat('&format=', format);

url = strcat(url_head, url_query, url_tail);

% get the data from the endpoint
query_results = urlread(url);

% write the data to a file so that tdfread can parse it
fid = fopen('query_results.txt','w');
if fid>=0
    fprintf(fid, '%s\n', query_results)
    fclose(fid)
end

% this reads the tsv file into a struct
sparql_data = tdfread('query_results.txt')
Project Github MatlabSPARQL
<?php
require __DIR__ . '/../vendor/autoload.php';
use BorderCloud\SPARQL\SparqlClient;

$endpoint ="https://query.wikidata.org/sparql";
$sp_readonly = new SparqlClient();
$sp_readonly->setEndpointRead($endpoint);
$q = <<<EOD
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> 
PREFIX bd: <http://www.bigdata.com/rdf#> 
PREFIX p: <http://www.wikidata.org/prop/> 
PREFIX pq: <http://www.wikidata.org/prop/qualifier/> 
PREFIX ps: <http://www.wikidata.org/prop/statement/> 
PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 
PREFIX wikibase: <http://wikiba.se/ontology#> 

select distinct  ?countryLabel  ?date (xsd:integer(sum(?death)) as ?deaths)
where {
    ?disease wdt:P31 wd:Q3241045 ;
             wdt:P361 wd:Q83741704 ;
              wdt:P17 ?country;
             p:P1120 [
             ps:P1120 ?death ;
                      pq:P585 ?date 
             ]
             Filter(?death > 0)
  SERVICE wikibase:label {
       bd:serviceParam wikibase:language "en" .
  }
} 
GROUP by  ?countryLabel ?date
order by ?countryLabel ?date
EOD;
$rows = $sp_readonly->query($q, 'rows');
$err = $sp_readonly->getErrors();
if ($err) {
      print_r($err);
      throw new Exception(print_r($err,true));
}

foreach($rows["result"]["variables"] as $variable){
        printf("%-20.20s",$variable);
        echo '|';
 }
 echo "\n";

foreach ($rows["result"]["rows"] as $row){
        foreach($rows["result"]["variables"] as $variable){
                printf("%-20.20s",$row[$variable]);
        echo '|';
        }
        echo "\n";
 }
 ?>
Project Github BorderCloud/SPARQL
import com.bordercloud.sparql.*;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.HashMap;

public class Main {

    public static void main(String[] args) {
        try {
            URI endpoint = new URI("https://query.wikidata.org/sparql");
            String querySelect  = "PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>  \n"
                    + "PREFIX bd: <http://www.bigdata.com/rdf#>  \n"
                    + "PREFIX p: <http://www.wikidata.org/prop/>  \n"
                    + "PREFIX pq: <http://www.wikidata.org/prop/qualifier/>  \n"
                    + "PREFIX ps: <http://www.wikidata.org/prop/statement/>  \n"
                    + "PREFIX wd: <http://www.wikidata.org/entity/>  \n"
                    + "PREFIX wdt: <http://www.wikidata.org/prop/direct/>  \n"
                    + "PREFIX wikibase: <http://wikiba.se/ontology#>  \n"
                    + " \n"
                    + "select distinct  ?countryLabel  ?date (xsd:integer(sum(?death)) as ?deaths) \n"
                    + "where { \n"
                    + "    ?disease wdt:P31 wd:Q3241045 ; \n"
                    + "             wdt:P361 wd:Q83741704 ; \n"
                    + "              wdt:P17 ?country; \n"
                    + "             p:P1120 [ \n"
                    + "             ps:P1120 ?death ; \n"
                    + "                      pq:P585 ?date  \n"
                    + "             ] \n"
                    + "             Filter(?death > 0) \n"
                    + "  SERVICE wikibase:label { \n"
                    + "       bd:serviceParam wikibase:language \"en\" . \n"
                    + "  } \n"
                    + "}  \n"
                    + "GROUP by  ?countryLabel ?date \n"
                    + "order by ?countryLabel ?date \n"
                    + " \n";
            SparqlClient sc = new SparqlClient(false);
            sc.setEndpointRead(endpoint);
            SparqlResult sr = sc.query(querySelect);
            //sc.printLastQueryAndResult();

            printResult(sr.getModel(),30);
        } catch (URISyntaxException | SparqlClientException e) {
            System.out.println(e);
            e.printStackTrace();
        }
    }

    public static void printResult(SparqlResultModel rs , int size) {
        for (String variable : rs.getVariables()) {
            System.out.print(String.format("%-"+size+"."+size+"s", variable ) + " | ");
        }
        System.out.print("\n");
        for (HashMap row : rs.getRows()) {
            for (String variable : rs.getVariables()) {
                System.out.print(String.format("%-"+size+"."+size+"s", row.get(variable)) + " | ");
            }
            System.out.print("\n");
        }
    }
}
For example, with Gradle :
apply plugin: 'java'
apply plugin: 'application'

// This comes out to package + '.' + mainClassName
mainClassName = 'Main'

group 'org.example'
version '1.0-SNAPSHOT'

repositories {
    mavenCentral()
}
dependencies {
    compile "com.bordercloud:SPARQL-JAVA:[1.0,)"
}
Project Github BorderCloud/SPARQL-JAVA
Other SPARQL client : RDF4J
You can use the SPARQL clients in Java : BorderCloud/SPARQL-JAVA or RDF4J