W3C home > Mailing lists > Public > public-xg-rdb2rdf@w3.org > January 2009

Re: Revised version of Proposed XG Recommendation

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Sat, 03 Jan 2009 13:53:49 -0500
Message-ID: <495FB43D.2090204@openlinksw.com>
To: ashok.malhotra@oracle.com
CC: public-xg-rdb2rdf <public-xg-rdb2rdf@w3.org>

On 1/2/09 12:16 PM, ashok malhotra wrote:
> I did some work on this over the holidays which included adding the 
> two usecases.
> I'll be happy to add more usecases if folks want to write them.
>
> Please take a careful look.  We are getting close to the deadline so 
> you close scrutiny is important.
Ashok,

I think we should add a case study that is based on a well known RDBMS 
schema.

At the current time we have complete Rdf2Rdb examples for the sample 
databases associated with the following DBMS engines:

1. 
http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtRDFViewsOracleHrDb 
- Oracle (HR DD)
2. 
http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtRDFViewsDB2SampleDb 
- DB2 (Sample DB)
3. 
http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtRDFViewNorthwind 
- SQL Server (Northwind DB)
4. 
http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtRDFViewsInformixStoresDemo 
- Informix (Stores DB)
5. 
http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtRDFViewsIngresTutDb 
- Ingres (Tutorial DB)
6. 
http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtRDFViewsProgressSQ92ISports 
- Progress
7. 
http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtRDFViewsSybasePubs2Db 
- Sybase (Pubs2)

As you know, the DBMS communities consistently use the default 
demonstration databases as ground-zero for all tutorial material. Thus, 
as part of a broader effort to engage the RDBMS community in general, we 
should include mappings examples based on each of the above. Ideally, 
their should be Triplify and D2RQ variants of what we've done to balance 
out this effort.

When a person from any of the DBMS realms above poses the question: What 
does Rdb2Rdf facilitate above and beyond what SQL currently offers, 
there should be a set of pages in place that demonstrate the fundamental 
point: record-level data access by reference using HTTP based 
Identifiers. An example of such pages:

1. 
http://demo.openlinksw.com/about/html/http://demo.openlinksw.com/Northwind/Customer/ALFKI%23this 
- Page about "ALFKI" an Entity in the Northwind Database
2. 
http://data.openlinksw.com/about/html/http://data.openlinksw.com/oplweb/product_release/virtuoso-uim-unisvr-ent/5.0/x86_64-sun-solaris2.10-64/virt50%23this 
- Page about a specific release of Virtuoso for the Solaris x86_64 
platform .


Happy New Year!

-- 


Regards,

Kingsley Idehen	      Weblog: http://www.openlinksw.com/blog/~kidehen
President&  CEO
OpenLink Software     Web: http://www.openlinksw.com
Received on Saturday, 3 January 2009 18:54:24 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Saturday, 3 January 2009 18:54:24 GMT