How to build correct SPARQL Query

How to build correct SPARQL Query

Content Index :

How to build correct SPARQL Query
Tag : development , By : Singularity
Date : November 24 2020, 01:01 AM

it should still fix some issue I need to get all players who have ever played for football team using SPARQL query and dbpedia.org , I'd use a query like this:
select distinct ?player ?birthPlace ?birthDate where {
  ?player dbpedia-owl:team <http://dbpedia.org/resource/Manchester_United_F.C.> ;
          a dbpedia-owl:Person ;
          dbpedia-owl:wikiPageID [] .
  optional { ?player dbpedia-owl:birthPlace ?birthPlace }
  optional { ?player dbpedia-owl:birthDate ?birthDate }

No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

sparql query sparql.query().convert() sometime throw exception while give output on Virtuoso SPARQL Query Editor

Tag : python , By : Ron
Date : March 29 2020, 07:55 AM
this will help The problem is with Distinct.
When using Distinct query shortcut / optimization is limited and if you have many results your query could timeout (depending on server load)

How can I build SPARQL query?

Tag : development , By : Marcos de Carvalho
Date : March 29 2020, 07:55 AM
it fixes the issue I am currently working on a project that is based on SPARQL and Protege (version 4.2). , You can just do:
PREFIX dbpprop: <http://dbpedia.org/property/>
PREFIX yago: <http://dbpedia.org/class/yago/>
  ?h a yago:AirlinerHijackings .
  ?h dbpprop:date ?date .
  FILTER(?date >= "1980-01-01"^^xsd:date && ?date < "2001-01-01"^^xsd:date)

What is the correct SPARQL version for this query?

Tag : development , By : user183676
Date : March 29 2020, 07:55 AM
it fixes the issue You almost had it, the only problem is that property values in DBPedia use language tags and your query looks for names with plain literal values. This query works for me:
      ?s <http://xmlns.com/foaf/0.1/name> "Google Inc."@en .
    } UNION {
      ?s <http://dbpedia.org/property/companyName> "Google Inc."@en .
    } UNION {
      ?s <http://dbpedia.org/property/name> "Google Inc."@en .

      ?s <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Company> .
    } UNION {
      ?s <http://dbpedia.org/ontology/type> <http://dbpedia.org/resource/Public_company> .

I'm using Jena to launch a SPARQL query. The query works in DBpedia SPARQL endpoint! I verified the query at query valid

Tag : java , By : vdavidovski
Date : March 29 2020, 07:55 AM
wish help you to fix your issue It looks like this got resolved in the comments. Here's a community wiki answer for the sake of visitors (in case the comments get deleted):
Put some newlines in the query and see exactly where parser referes to. It will be the place the parse error starts. HAVING clause needs () for legal SPARQL 1.1 having (count(?p) > 35). – AndyS { dbpedia:Lagaan } isn't right either – AndyS yesterday i got it.It needed a space after the angular bracket in the prefix. – Kulsum Fatima

SPARQL query gets error from SPARQL Query Validator, but works in Virtuoso SPARQL Query Editor

Tag : javascript , By : Mark W
Date : March 29 2020, 07:55 AM
should help you out The comma after SELECT ?distractor, is allowed in Virtuoso, but is non-standard. After removing the comma (and adding appropriate prefix declarations), the query validates.
Related Posts Related QUESTIONS :
  • Telligent's Community Server
  • Do people use the Hungarian Naming Conventions in the real world?
  • Memcached chunk limit
  • How do you pull the URL for an ASP.NET web reference from a configuration file in Visual Studio 2008?
  • How to add CVS directories recursively
  • Web App Beta
  • Virtual machine supporting multiple displays
  • LINQ to SQL strings to enums
  • How do I configure eclipse (zend studio 6) to hint and code complete several languages?
  • Recommended Fonts for Programming?
  • Automating VMWare or VirtualPC
  • How do I use more than one OpenID?
  • Domain Specific Language resources
  • Vista or XP for Dev Machine
  • Where can I get the Windows Workflow "wca.exe" application?
  • How to learn ADO.NET
  • What is a good barebones CMS or framework?
  • What's the Developer Express equivalent of System.Windows.Forms.LinkButton?
  • Is it acceptable for invalid XHTML?
  • Anyone soloing using fogbugz?
  • Using MBUnit in TeamCity
  • How to setup a crontab to execute at specific time
  • Linking two Office documents
  • How can I detect if a browser is blocking a popup?
  • Apply filter to t-foreach
  • Lotus Notes convert formula to agent
  • Problem with configuration of odoo for working with pycharm
  • Unexpected number of arguments when calling EM_JS function
  • What does the function state_fidelity() do in Qiskit?
  • Azure function with IoT Hub trigger get send device
  • Cluster similar words using word2vec
  • Add elements into an array then find distinct,
  • Angular8 - error TS2304: Cannot find name
  • Manually polling streams in future implementation
  • How do you perform receipt validation for Android on Xamarin Forms
  • What is the rule behind instruction count in Intel PIN?
  • How to draw some text when click a button in wxWidgets?
  • Restrict entity types in Spacy NER
  • How to animate CN1 Slider progress on load
  • Issue with bwa mem process not running on all output files from previous process
  • Delete videos from playlist using YouTube API
  • How to restart the Hyperledger Composer Playground locally
  • How to configure email alerts in Zabbix Server?
  • Simulator is not working for smart home action with all configured session
  • How parse data using join on Objection.js
  • Assign an array to a property in a Chapel Class
  • Netlogo: How can I obtain the accumulate value in Netlogo?
  • How to populate datasource for listview using api response in react native?
  • Why does gmail API when using history.list method send message ids without the field what action has been preformed on t
  • How to run an append query in ms access vba as part of a transaction
  • Wrong dates shown in Jekyll-based blog
  • How to concatenate two document lists in a webMethods flow service?
  • How to properly set up a site map addition in a customization project
  • IBM Content Collector error calling external Web Service
  • Is (0*1*)* equal to (0 | 1)*?
  • How do I configure phpMyAdmin to start with a blank sql query from the SQL tab?
  • "Objects are not valid as a React child" Redux error when conditionally connecting a component?
  • Displacy results are not showing
  • Strapi / Graphql. What am i doing wrong?
  • How to add Search bar for django template?
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com