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SPARQL Tutorial

by Freelance Technologist at Talis on Mar 13, 2009

  • 55,339 views

A short introduction to SPARQL. Mainly consists of demontration queries

A short introduction to SPARQL. Mainly consists of demontration queries

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15 of 5 previous next Post a comment

  • dinggz1982 dinggz1982 thank you very much. 1 year ago
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  • basicballistic basicballistic I apologize. It seems this forum does not support carriage returns or uncommon characters. The expression I stated in my first question can be found in the FILTER statement of this parsed query:

    http://www.sparql.org/validator?query=SELECT+*%0D%0AWHERE+{+%0D%0AFILTER+(+!3%3Ctrue%2B-false+||+%22str%22/$x%2Btrue%2B1)+}&languageSyntax=SPARQL&outputFormat=sparql&linenumbers=true
    3 years ago
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  • basicballistic basicballistic I have three questions about the sparql validator (http://www.sparql.org/validator.html).

    1) Why does the it consider the following expression correct?
    (!3)t it catch unspecified variables? For example, this query does not generate an error:
    SELECT *
    WHERE { FILTER ($x = 42) }
    3 years ago
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  • minhhung19872002 minhhung19872002 thanks very much 3 years ago
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  • kancho University of Memphis at University of Memphis SPARQL tutorial 3 years ago
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