primary keys

From: Jeremy Carroll <jjc@hpl.hp.com> Date: Thu, 08 Mar 2007 10:30:40 +0000 Message-ID: <45EFE5D0.10203@hpl.hp.com> To: public-owl-dev@w3.org · This archive was generated by hypermail 2.3.1 : Wednesday, 27 March 2013 09:32:54 GMT

One reason IFP and DP combined are useful is because it corresponds 
directly to the database notion of primary key.

There is also a requriement to be able to map compound primary keys into 
ontologies.

This could be addressed with say
   _:a a Restriction .
   _:a owl11:primaryKey [
      a:prop1
      a:prop2
      ...
   ].

creating the class of things for which the list of properties acts as a 
primary key.

See
http://www.w3.org/2001/sw/WebOnt/webont-issues.html#I6.2-CompoundKeys

Jeremy