From: Joseph Coffman (jcoffman@bbn.com)
Date: 11/19/01
>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, is a >Declarative Language for uniformly querying RDF schemas and resource >descriptions. > >You can download it from: >http://139.91.183.30:9090/RDF/RQL/ > >RQL v1.0 main features >================================================== >Supports: >- 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 Joseph Coffman 703 284 8624 703 486 4567 BBN Technologies A Verizon Company
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