On 1/22/13 2:35 AM, John F Sowa wrote:
> KI
>> >A DB2 relational dbms that in version 10 is enhanced with RDF data
>> >model storage and SPARQL query language support
> Yes. Oracle also handles RDF and SPARQL. (01)
Yes they do. (02)
> The vendors who sell graph
> based systems support SQL, and the relational vendors support SPARQL. (03)
I don't know about that. In my experience, the folks that use the "graph
dbms" moniker typically possess the following characteristics: (04)
1. preach NoSQL
2. offer product specific graph traversal APIs
3. offer nothing that matches SQL or SPARQL or SQL+SPARQL for aggregates
oriented analytics and ad-hoc querying. (05)
>
> The conceptual schema proposals developed by the DB community in the
> 1970s (and '80s and '90s) were intended to support interoperability. (06)
Yes. (07)
> They tried to make a clean separation between the logic and the
> implementation details. The major obstacle was the vendors who
> didn't want interoperability with products sold by their competitors (08)
Yes. (09)
This is also the root of my contempt for those vendors :-) (010)
>
> John (011)
-- (012)
Regards, (013)
Kingsley Idehen
Founder & CEO
OpenLink Software
Company Web: http://www.openlinksw.com
Personal Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca handle: @kidehen
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LinkedIn Profile: http://www.linkedin.com/in/kidehen (014)
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