- From: Bijan Parsia <bparsia@cs.man.ac.uk>
- Date: Wed, 24 Nov 2010 15:21:50 +0000
- To: Milan Zdravkovic <milan.zdravkovic@gmail.com>
- Cc: public-owl-dev@w3.org
On 24 Nov 2010, at 15:08, Milan Zdravkovic wrote: > As a part of a small project, I need to perform a semantic analysis of the ER model (relational database). However, I am stucked with a problem of inferring the intermediary tables (ones that are used only to connect two other tables with many-to-many relation). Relevant relations are: > > entity hasAttribute attribute > relation hasSourceAttribute attribute > relation hasDestinationAttribute attribute > > Now, I assume that intermediary table is the table whose all fields are source attributes of some relation, or.. > > entity and hasAttribute only (isSourceAttributeOf some relation) > > However, this does not work. Could you please help ? Why not? Did you make isSourceAttributeOf an inverse of hasSoruceAttribute? Cheers, Bijan.
Received on Wednesday, 24 November 2010 15:22:10 UTC