- From: Michael Lang Jr. <michaelallenlang@gmail.com>
- Date: Wed, 12 Dec 2012 16:35:46 -0500
- To: Barry Norton <barry.norton@ontotext.com>
- Cc: "public-lod@w3.org" <public-lod@w3.org>
Received on Wednesday, 12 December 2012 21:36:15 UTC
Hi Ying, We make a tool called Spyder, which is not open-source, but is free - http://www.revelytix.com/content/spyder. It will let you use R2RML over a CVS file directly to convert to RDF (or query with SPARQL without converting). Mike phone: 410-584-0009 (office) 443-928-3782 (cell) skype: michael.allen.lang.jr twitter: http://twitter.com/mlang2 On Wed, Dec 12, 2012 at 4:15 PM, Barry Norton <barry.norton@ontotext.com>wrote: > > Ying, this might sound like a stupid question, but if you want SQL > features why not pull your CSV into a relational DB table then R2RML it > into RDF (since mappings will allow you arbitrary SQL)? > > Barry > > > > > On 12/12/2012 21:08, Ying Ding wrote: > >> Hi, >> >> I am looking for a open source software to convert csv file to RDF based >> on one pre-defined ontology. Also, this converter should support >> complicated SQL queries (e.g., Group BY query and IF/THEN/ELSE query) while >> defining the mapping between csv to our pre-defined ontology. >> >> thanks >> ying >> >> >> > >
Received on Wednesday, 12 December 2012 21:36:15 UTC