2005-02-24
RDQL is an implementation of an SQL-like query language for RDF. It treats RDF as data and provides query with triple patterns and constraints over a single RDF model. The target usage is for scripting and for experimentation in information modelling languages. The language is derived from SquishQL. The purpose of RDQL is as a model-level access mechanism that is higher level than an RDF API. Query provides one way in which the programmer can write a more declarative statement of what is wanted, and have the system retrieve it. The RDQL grammar RDQL Usage Example queries Features SQL-like language for retrieving sets of values Java query engine for Jena models Command line support for exploring data sets