SPARQL By Example: The Cheat Sheet
SPARQL By Example: The Cheat Sheet
Accompanies slides at:
Comments & questions to:
Lee Feigenbaum VP Technology & Standards, Cambridge Semantics
Co-chair, W3C SPARQL Working Group
Conventions
Red text means: "This is a core part of the SPARQL syntax or language."
Blue text means: "This is an example of query-specific text or values that might go into a SPARQL query."
Nuts & Bolts
URIs
Write full URIs:
Literals
"a plain literal"
Plain literals:
Abbreviate URIs with prefixes: PREFIX foo: ... foo:bar ...
a rdf:type
Shortcuts:
Variables
?var1, ?anotherVar, ?and_one_more
Variables:
Plain literal with language tag: "bonjour"@fr
"13"^^xsd:integer
Typed literal:
Shortcuts: true "true"^^xsd:boolean 3 "3"^^xsd:integer 4.2 "4.2"^^xsd:decimal
Comments
Comments: # Comments start with a ,,# # continue to the end of the line
Triple Patterns
ex:myWidget ex:partNumber "XY24Z1" .
Match an exact RDF triple:
?person foaf:name "Lee Feigenbaum" .
Match one variable:
conf:SemTech2009 ?property ?value .
Match multiple variables:
Common Prefixes
prefix... rdf: rdfs: owl: xsd: dc: foaf:
...stands for
More common prefixes at
Anatomy of a Query
Declare prefix shortcuts (optional)
Define the dataset (optional)
Query modifiers (optional)
PREFIX foo: PREFIX bar: ... SELECT ... FROM FROM NAMED WHERE {
... } GROUP BY ... HAVING ... ORDER BY ... LIMIT ... OFFSET ... BINDINGS ...
Query result clause
Query pattern
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- a tour of go swtch
- comp520 golite syntax specification
- golang declare a struct variable and populate
- array in golang
- declare variable from string golang
- sparql by example the cheat sheet
- golang cheat sheet
- declare array when defining struct
- go programming language
- how to create string array in go tutorial kart
Related searches
- cheat sheet for word brain game
- macro cheat sheet pdf
- logarithm cheat sheet pdf
- excel formula cheat sheet pdf
- excel formulas cheat sheet pdf
- excel cheat sheet 2016 pdf
- vba programming cheat sheet pdf
- macro cheat sheet food
- free excel cheat sheet download
- onenote cheat sheet pdf
- punctuation rules cheat sheet pdf
- excel formula cheat sheet printable