Posted by
Jiba on
URL: http://owlready.306.s1.nabble.com/How-to-import-instances-and-its-corresponding-property-values-from-database-to-an-ontology-tp387p405.html
Hi,
I think you can use a normal DataProperty (non Inverse functional). Inverse functional properties provide no particular optimization, and no check -- they are only used for reasoning purpose in OWL.
> Also, In my example why does it create a object property as well as a
> datatype property when i create a
> Inverse Functional Property since you said they are disjoint
> implicitely.Also it creates a class with name customerNumber.
Inheriting from both ObjectProperty and DataProperty is not supported, and thus anything may occur :)
Best regards,
Jean-Baptiste Lamy
MCF, LIMICS, Université Paris 13
> Hi Jiba,
>
> Thank you for the response.The str is wrong on my part it has to be an
> integer since its a customer number.
> But I want to use an Inverse functional property for customer number since
> its a Primary key?
>
> and since Inverse Functional Property is a subclass of object property it
> will create a customerNumber object property.
>
> I read some research papers which mentioned that for primary keys use
> inverse functional property.
> What do you think is the best way to express primary keys in ontology?
>
> Also, In my example why does it create a object property as well as a
> datatype property when i create a
> Inverse Functional Property since you said they are disjoint
> implicitely.Also it creates a class with name customerNumber.
>
>
> Regards,
> Jui
>
>
>
>
>
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