ISSUE-14 (many-to-many): Many-to-Many tables [Direct Mapping] from RDB2RDF Working Group Issue Tracker on 2011-01-21 (public-rdb2rdf-wg@w3.org from January 2011)

From: RDB2RDF Working Group Issue Tracker <sysbot+tracker@w3.org>
Date: Fri, 21 Jan 2011 20:55:55 +0000
To: public-rdb2rdf-wg@w3.org
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ISSUE-14 (many-to-many): Many-to-Many tables [Direct Mapping]

http://www.w3.org/2001/sw/rdb2rdf/track/issues/14

Raised by: Juan Sequeda
On product: Direct Mapping

The direct graph is arguably more faithful to the conceptual model if it reflects e.g. a person with multiple addresses (some many-to-many Person2Address table) as repeated properties. It is difficult to detect which tables with exactly two foreign keys and no other attributes are many-to-many. As a counter example [1] , a Wedding table may have exactly two spouses but it's still not a many-to-many relation in most places.

[1] http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2010Nov/0003.html

Received on Friday, 21 January 2011 20:55:56 UTC