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RQL v1.0 download

From: Greg Karvounarakis <gregkar@ics.forth.gr>
Date: Mon, 19 Nov 2001 13:33:42 +0200 (EET)
To: <www-rdf-interest@w3.org>, <w3c-rdfcore-wg@w3.org>, <www-webont-wg@w3.org>, <www-rdf-calendar@w3.org>, <sw99@w3.org>, <www-annotation@w3.org>, <www-rdf-logic@w3.org>
Message-ID: <Pine.GSO.4.33.0111191325440.24495-100000@athena.ics.forth.gr>

Please accept our apologies for any cross-postings

Dear all,
We are pleased to announce the availability of the RQL Interpreter, under
open-source license. The RDF Query Language Interpreter (RQL), v1.0, a
Declarative Language for uniformly querying RDF schemas and resource

You can download it from:

RQL v1.0 main features
-  XML Schema data types (for filtering literal values)
-  grouping primitives (for constructing nested XML results)
-  aggregate functions (for extracting statistics)
-  recursive traversal of class and property hierarchies (for advanced matchmaking)

Pushes as much as possible query evaluation to the underlying DBMS
-  Benefit from robust SQL3 query engines
-  Extensive use of DB indices

Provides generic RDF/XML result form
-  XSL/XSL processing for customized rendering

Easy to couple with commercial ORDBMSs
-  RDF Querying APIs (SQL3/C++ functions)

Easy to integrate with Web Application Servers
-  C++ or Java drivers to RQL servers

Easy to learn and use
-  One day training

We are looking forward to receiving your comments and suggestions.

Best regards
Grigoris Karvounarakis
Received on Monday, 19 November 2001 06:36:46 UTC

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