SPARKQL Query Language

 

 

https://www.w3.org/TR/rdf-sparql-query/

SPARQL Query Language for RDF

 

 

Table of Contents

• 1 Introduction
• 1.1 Document Outline
  • 1.2 Document Conventions
    • 1.2.1 Namespaces
    • 1.2.2 Data Descriptions
    • 1.2.3 Result Descriptions
    • 1.2.4 Terminology
• 2 Making Simple Queries (Informative)
  • 2.1 Writing a Simple Query
  • 2.2 Multiple Matches
  • 2.3 Matching RDF Literals
    • 2.3.1 Matching Literals with Language Tags
    • 2.3.2 Matching Literals with Numeric Types
    • 2.3.3 Matching Literals with Arbitrary Datatypes
  • 2.4 Blank Node Labels in Query Results
  • 2.5 Building RDF Graphs
• 3 RDF Term Constraints (Informative)
  • 3.1 Restricting the Value of Strings
  • 3.2 Restricting Numeric Values
  • 3.3 Other Term Constraints
• 4 SPARQL Syntax
  • 4.1 RDF Term Syntax
    • 4.1.1 Syntax for IRI
    • 4.1.2 Syntax for Literals
    • 4.1.3 Syntax for Variables
    • 4.1.4 Syntax for Blank Nodes
  • 4.2 Syntax for Triple Patterns
    • 4.2.1 Predicate-Object Lists
    • 4.2.2 Object Lists
    • 4.2.3 RDF Collections
    • 4.2.4 rdf:type
• 5 Graph Patterns
  • 5.1 Basic Graph Patterns
    • 5.1.1 Blank Node Labels
    • 5.1.2 Extending Basic Graph Pattern Matching
  • 5.2 Group Graph Patterns
    • 5.2.1 Empty Group Pattern
    • 5.2.2 Scope of Filters
    • 5.2.3 Group Graph Pattern Examples
• 6 Including Optional Values
  • 6.1 Optional Pattern Matching
  • 6.2 Constraints in Optional Pattern Matching
  • 6.3 Multiple Optional Graph Patterns
• 7 Matching Alternatives
• 8 RDF Dataset
  • 8.1 Examples of RDF Datasets
  • 8.2 Specifying RDF Datasets
    • 8.2.1 Specifying the default Graph
    • 8.2.2 Specifying Named Graphs
    • 8.2.3 Combining FROM and FROM NAMED
  • 8.3 Querying the Dataset
    • 8.3.1 Accessing Graph Names
    • 8.3.2 Restricting by Graph IRI
    • 8.3.3 Restricting possible Graph IRIs
    • 8.3.4 Named and Default Graphs
• 9 Solution Sequences and Modifiers
  • 9.1 ORDER BY
  • 9.2 Projection
  • 9.3 Duplicate Solutions
    • 9.3.1 DISTINCT
    • 9.3.2 REDUCED
  • 9.4 OFFSET
  • 9.5 LIMIT
• 10  Query forms
  • 10.1 SELECT
  • 10.2 CONSTRUCT
    • 10.2.1 Templates with Blank Nodes
    • 10.2.2 Accessing Graphs in the RDF Dataset
    • 10.2.3 Solution Modifiers and CONSTRUCT
  • 10.3 ASK
  • 10.4 DESCRIBE (Informative)
    • 10.4.1 Explicit IRIs
    • 10.4.2 Identifying Resources
    • 10.4.3 Descriptions of Resources
• 11 Testing Values
  • 11.1 Operand Data Types
  • 11.2 Filter Evaluation
    • 11.2.1 Invocation
    • 11.2.2 Effective Boolean Value
  • 11.3 Operator Mapping
    • 11.3.1 Operator Extensibility
  • 11.4 Operator Definitions
    • 11.4.1 bound
    • 11.4.2 isIRI
    • 11.4.3 isBlank
    • 11.4.4 isLiteral
    • 11.4.5 str
    • 11.4.6 lang
    • 11.4.7 datatype
    • 11.4.8 logical-or
    • 11.4.9 logical-and
    • 11.4.10 RDFterm-equal
    • 11.4.11 sameTerm
    • 11.4.12 langMatches
    • 11.4.13 regex
  • 11.5 Constructor Functions
  • 11.6 Extensible Value Testing
• 12 Definition of SPARQL
  • 12.1 Initial Definitions
    • 12.1.1 RDF Terms
    • 12.1.2 RDF Dataset
    • 12.1.3 Query Variables
    • 12.1.4 Triple Patterns
    • 12.1.5 Basic Graph Patterns
    • 12.1.6 Solution Mappings
    • 12.1.7 Solution Sequence Modifiers
  • 12.2 SPARQL Query
    • 12.2.1 Converting Graph Patterns
    • 12.2.2 Examples of Mapped Graph Patterns
    • 12.2.3 Converting Solution Modifiers
  • 12.3 Basic Graph Patterns
    • 12.3.1 SPARQL Basic Graph Pattern Matching
    • 12.3.2 Treatment of Blank Nodes
  • 12.4 SPARQL Algebra
  • 12.5 SPARQL Evaluation Semantics
  • 12.6 Extending SPARQL Basic Graph MatchingAppendices
    • A SPARQL Grammar
      • A.1 SPARQL Query String References
      • A.2 Codepoint Escape Sequences
      • A.3 White Space
      • A.4 Comments
      • A.5 IRI References
      • A.6 Blank Node Labels
      • A.7 Escape sequences in strings
      • A.8 Grammar
    • B Conformance
    • C Security Considerations (Informative)
    • D Internet Media Type, File Extension and Macintosh File Type
    • E References
    • F Acknowledgements (Informative)