Dear All,

My question is how can I express the following relationships from a relational database in RDF or RDFS:

  1. Inheritance relationships: "is-a" and "has-a" relations.
  2. Aggregation relationship: "is-part-of".
  3. 1-1 relationship.
  4. 1-many relationship.
  5. many-to-many relationship.

please, if you can provide references.

Thanks,

asked 22 Feb '13, 19:31

prof's gravatar image

prof
654
accept rate: 0%

4

What have you tried?

(22 Feb '13, 20:14) Jeen Broekstra ♦ Jeen%20Broekstra's gravatar image

yes put I got no answers, here and there!

(04 Mar '13, 21:49) prof prof's gravatar image
3

If you get no answers, that is usually an indication that you have not provided sufficient details for it to be an answerable question. Show what you have tried or what you have read, what your current (partial) solution does and does not do, where exactly in your thinking about this you are stuck.

You can use the 'edit' link on your question (below the question text, on the left) to update the question with these additional details.

(04 Mar '13, 23:44) Jeen Broekstra ♦ Jeen%20Broekstra's gravatar image
1

I also urge you to read http://answers.semanticweb.com/questions/14494/welcome-to-answerssemanticwebcom . It contains several useful tips on how to ask good questions on this site, so that you improve your chances of getting good answer.

(04 Mar '13, 23:44) Jeen Broekstra ♦ Jeen%20Broekstra's gravatar image

Sorry for that question, the answer is too long and need too much explanations. I expressed the above mentioned relations in OWL.

(22 May '13, 02:53) prof prof's gravatar image
showing 5 of 6 show 1 more comments

Consider you have data and now you need to put in relationships with that data. I would suggest you to have a bit of Study on Ontologies which would help you to understand this process. Mostly check out FOAF Ontology to start with and you would be clear with your question's answer!! :)

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answered 05 Mar '13, 02:06

Roger's gravatar image

Roger
1.1k29
accept rate: 10%

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question asked: 22 Feb '13, 19:31

question was seen: 808 times

last updated: 22 May '13, 02:55