Semantics from a Relational Database?

Dears,

I want to identify semantics from a relational database, I found the association, inheritance, and aggregation relationships. What are the other relationships or semantics that I can extract from a relational database?

Thanks,

relational semantics database

asked 16 Feb, 03:22

prof
65●4
accept rate: 0%

4 Answers:

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I'd take a look at the mapping drafts and recommendations from the W3C rdb2rdf WG:

http://www.w3.org/2001/sw/rdb2rdf/

link

answered 16 Feb, 07:18

William Greenly
4.9k●3●12
accept rate: 13%

yah I know that, but I'm looking for specifically how to extract more semantics from the relationships represented in a relational model.

(16 Feb, 09:17) prof

I would suggest having a supplementary database or OWL which has other inferences drawn from base relationships that your RDB is using. When you combine these together and pull with an inferencing parser, you will get some new facts which are more useful than just plain database.

Obviously, if you want to go reasoning you can go OWL DL instead of RDFS for more expressive reasoning.

Thanks Prabhu K

link

answered 16 Feb, 18:35

Prabhu K
1
accept rate: 0%

0	Jena and Virtuoso triple stores have models for a relational database. link answered 25 Feb, 02:43 MacGyver 75●4 accept rate: 0%

0	Have a look at the D2RQ I have been researching about it from an hour or so. Have a look would be great. It helps to extract all your data into RDF format from a Relational DB with the Ontology mapping you provide. link answered 25 Feb, 02:45 Roger 1.0k●2●9 accept rate: 10%

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Asked: 16 Feb, 03:22

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Last updated: 25 Feb, 02:45

Semantics from a Relational Database?

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