Re: Do Data Models Need to built on a Mathematical Concept?
Date: Mon, 05 May 2003 01:39:41 GMT
Message-ID: <xhjta.735117$L1.209392_at_sccrnsc02>
"Neo" <neo55592_at_hotmail.com> wrote in message news:4b45d3ad.0305041612.7e5f5cb0_at_posting.google.com...
> > > Just as in pure set theory, I want the flexibility that the elements
> > > can be anything.
> >
> > Sure; the model totally allows this.
>
> I guess, I should say, I want an implementation that allows it, but
> you are right, it is not the fault of the model.
Fair enough.
There are DBMSs out there that allow you to create your own types. I believe PostgreSQL has this capability. I haven't used it myself, but I thought I'd mention it in case you're interested.
Oh, and there's also FirstSQL, which lets you put Java objects in the db without getting into the whole "object/relational" like of hooey. Very cool.
Marshall
PS. Some folks consider this feature an essential required feature, which makes it ironic that so few databases actually support it. Received on Mon May 05 2003 - 03:39:41 CEST