SPARUL
SPARUL, or SPARQL/Update, was a declarative data manipulation language that extended the SPARQL 1.0 query language standard. SPARUL provided the ability to insert, delete and update RDF data held within a triple store or quad store. SPARUL was originally written by Hewlett-Packard and has been used as the foundation for the current W3C recommendation entitled SPARQL 1.1 Update.[1] With the publication of SPARQL 1.1, SPARUL is superseded and should only be consulted as a source of inspiration for possible future refinements of SPARQL, but not for real-world applications.
Examples
Adding some triples to a graph. The snippet describes two RDF triples to be inserted into the default graph of the RDF store.
PREFIX dc: <http://purl.org/dc/elements/1.1/> INSERT DATA { <http://example/book3> dc:title "A new book" ; dc:creator "A.N.Other" . } This SPARQL/Update request contains a triple to be deleted and a triple to be added (used here to correct a book title). The requested change happens in the named graph identified by the URI http://example/bookStore.
PREFIX dc: <http://purl.org/dc/elements/1.1/> DELETE DATA FROM <http://example/bookStore> { <http://example/book3> dc:title "Fundamentals of Compiler Design" } INSERT DATA INTO <http://example/bookStore> { <http://example/book3> dc:title "Fundamentals of Compiler Design" } The example below has a request to delete all records of old books (with date before year 2000)
PREFIX dc: <http://purl.org/dc/elements/1.1/> PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> DELETE { ?book ?p ?v } WHERE { ?book dc:date ?date . FILTER ( ?date < "2000-01-01T00:00:00"^^xsd:dateTime ) ?book ?p ?v } This snippet copies records from one named graph to another named graph based on a pattern.
PREFIX dc: <http://purl.org/dc/elements/1.1/> PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> INSERT INTO <http://example/bookStore2> { ?book ?p ?v } WHERE { GRAPH <http://example/bookStore> { ?book dc:date ?date . FILTER ( ?date < "2000-01-01T00:00:00"^^xsd:dateTime ) ?book ?p ?v } } An example to move records from one named graph to another named graph based on a pattern.
PREFIX dc: <http://purl.org/dc/elements/1.1/> PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> INSERT INTO <http://example/bookStore2> { ?book ?p ?v } WHERE { GRAPH <http://example/bookStore> { ?book dc:date ?date . FILTER ( ?date < "2000-01-01T00:00:00"^^xsd:dateTime ) ?book ?p ?v } } DELETE FROM <http://example/bookStore> { ?book ?p ?v } WHERE { GRAPH <http://example/bookStore> { ?book dc:date ?date . FILTER ( ?date < "2000-01-01T00:00:00"^^xsd:dateTime ) ?book ?p ?v } } SPARQL/Update implementations
- AllegroGraph
- ARQ
- D2R Server[2]
- Jena
- OntoBroker
- Ontotext OWLIM
- Oracle DB Enterprise Ed.
- Parliament[3]
- Redland / Redstore
- StrixDB supports SPARQL/Update 1.0.
- OpenLink Virtuoso Universal Server
Clients supporting SPARUL
- tabulator[4]
References
- ^ "SPARQL 1.1 Update". www.w3.org. Retrieved 2021-01-07.
- ^ D2R Server
- ^ "Parliament". Archived from the original on 2014-04-30. Retrieved 2012-06-30.
- ^ "The Tabulator"
External links
- SPARQL/Update W3C Member Submission
- SPARQL 1.1 Update Proposed Recommendation from W3C SPARQL Working Group
- EditingData wiki page - summary (maintained by Tim Berners-Lee) of ways to edit linked data