SPARQL: Difference between revisions

Latest revision as of 23:31, 4 March 2019

SPARQL is a query language for graphs composed of subject-predicate-object RDF triplets.

See w:List of SPARQL implementations for all w:triplestores that provide SPARQL querying endpoint
See w:List of subject-predicate-object databases for purpose built triplestores.

Copyleft or free-of-charge implementations of SPARQL endpoint ability producing software alternatives

w:Virtuoso Universal Server - http://virtuoso.openlinksw.com/download/ - GPL and proprietary

Tools

http://d2rq.org/ - Enables writing queries in SPARQL that actually access traditional relational database and receiving results and RDF graphs. Could be very useful as glue code between MediaWiki's data in the MariaDB and the public and private SPARQL databases

See also

Databases offers a wider view into this

External links

http://sparql-playground.sib.swiss/help/doc/about - SPARQL playground is a standalone multi-platform web application used to learn SPARQL

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-{{Q|'''SPARQL''' is a [[w:recursive acronym|recursive acronym]] and stands for '''SPARQL Protocol and RDF Query Language'''). It is an [[w:RDF query language|RDF query language]], that is, a [[w:Semantic_Query|semantic]] [[w:query language|query language]] for [[w:database|database]]s, able to retrieve and manipulate data stored in [[w:Resource Description Framework|Resource Description Framework (RDF)]] format.|Wikipedia|[[w:SPARQL|SPARQL]]}}
+SPARQL is a query language for graphs composed of subject-predicate-object RDF triplets.
-{{Q|Some '''subject-predicate-object databases''' (also known as ''[[w:triplestore|triplestore]]s'') have been built as database engines from scratch, while others have been built on top of existing commercial relational database engines (e.g., SQL-based).|Wikipedia|[[w:list of subject-predicate-object databases|list of subject-predicate-object databases]]}}
-{{Q|A '''triplestore''' or '''RDF store''' is a purpose-built [[w:database|database]] for the storage and retrieval of [[w:Resource Description Framework#Overview|triples]] through [[w:Semantic Query|semantic queries]].|Wikipedia|[[w:Triplestore]]}}
-{{Q|A '''NoSQL''' (originally referring to "non SQL" or "non relational") database provides a mechanism for storage and retrieval of data which is modeled in means other than the tabular relations used in relational databases.|Wikipedia|[[w:NoSQL|NoSQL]]}}
 * See [[w:List of SPARQL implementations]] for all [[w:triplestores]] that provide SPARQL querying endpoint
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 ''' Tools '''
 * http://d2rq.org/ - Enables writing queries in SPARQL that actually access traditional relational database and receiving results and RDF graphs. Could be very useful as glue code between MediaWiki's data in the MariaDB and the public and private SPARQL databases
+''' See also '''
+* [[Databases]] offers a wider view into this
+''' External links '''
+* http://sparql-playground.sib.swiss/help/doc/about - SPARQL playground is a standalone multi-platform web application used to learn SPARQL