In article <3D23C630.7040801_at_deepthought.com.au>,
Thomas Beale <thomas_at_deepthought.com.au> wrote:
>
>
>Jan.Hidders wrote:
>
>>Sure. You can simulate RM in an OO model and you can simulate the data part
>>of an OO model in RM. I might also claim that many OO models are in some
>>sense very limited relational models because they only have binary
>>relationships. What's your point?
>>
>what makes you think that OO models do not have n-ary relationships?
Because if they did they would be object-relational models. :-) But
seriously, (althoug I'm only half kidding there) note that I said "many" and
not "all". I'm quite aware that the UML object model supports n-ary
relationships, but I'm not sure if that is relevant here because as far as I
know there is no database that uses it as its primary data model and we are
discussing this in the context of databases and not data models in general.
Received on Thu Jul 04 2002 - 03:37:59 CDT
