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RE: [DotGNU]RDF Query Language
From: |
Danny Ayers |
Subject: |
RE: [DotGNU]RDF Query Language |
Date: |
Wed, 26 Mar 2003 13:14:47 +0100 |
> Not really. Those languages are quite complicated. RDF is simple
> and thus the
> query language can be simple. My approach is to keep things simple.
Not similar? Your version :
The basic SELECT operation goes like this:
SELECT propertynames
FROM resourceclassnames
WHERE condition
GROUP BY propertynames
HAVING condition
an example from RDQL [1] :
SELECT ?a, ?b
WHERE (?a, <http://somewhere/pred1>, ?b)
AND ?b <
If you believe the language (RQL or RDQL) as a whole is too complicated,
then you could define a subset. I still don't see any reason to invent a
completely new language and with it new interop problems.
> Anyway time to rename my query language: GNU.RDF.QL :-)
Good name ;-)
Cheeers,
Danny.
[1] http://www.hpl.hp.com/semweb/rdql-examples.html
Re: [DotGNU]RDF Query Language, Peter Minten, 2003/03/26
[DotGNU]Implement RDF in a Universal Data Structure, Seth Johnson, 2003/03/26