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variables prefix - ?variable vs. $variable

From: Alberto Reggiori <alberto@asemantics.com>
Date: Mon, 30 Aug 2004 17:55:32 +0200
Message-Id: <0618436C-FA9D-11D8-A917-0003939CA324@asemantics.com>
To: RDF Data Access Working Group <public-rdf-dawg@w3.org>


sometime ago I arose a possible issue about the usage of '?variable'  
style syntax vs. '$variable'  (i.e. clashing with SQL interface usage  
of '?' for
'placeholders and bind values' )

http://lists.w3.org/Archives/Public/public-rdf-dawg/2004AprJun/ 
0797.html (see second part of the message)

and I got a reply

http://lists.w3.org/Archives/Public/public-rdf-dawg/2004AprJun/ 
0802.html (see last part of the message)

but I still do not see any mention about the issue/problem (or how it  
could be solved/addressed) into the current BRQL draft

http://www.w3.org/2001/sw/DataAccess/rq23/

it seems Tucana iTQL uses '$' sign explicitly for variables - we do  
similar escaping into our current RDQL implementation for *DBC bindings

what is other people feeling about this? any other implementation  
experience?

or any chance to get '$' symbol accepted as a synonym for '?' symbol in  
the BRQL spec?

Alberto
Received on Monday, 30 August 2004 15:55:35 GMT

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