Re: is ORACLE Universal Server 8.03 really an Object-Oriented DBMS ?

From: Thomas Kyte <tkyte_at_us.oracle.com>
Date: Thu, 14 May 1998 22:29:26 GMT
Message-ID: <35626eda.30610285@192.86.155.100>

A copy of this was sent to Didier ROS <Didier.Ros_at_ceram.fr> (if that email address didn't require changing) On Wed, 13 May 1998 16:00:53 +0200, you wrote:

>HI,
>I am working on a document which compares the main O-R DBMS ? and I
>would like to have some information about ORACLE Universal Server 8.03:
>
>1) Does it support inheritance ?
> if so, simple inheritance ? multiple inheritance ?
>

not currently.

>2) Is it possible to create generic functions ?
>

do you mean generics in the sense of Ada generics? -- No do you mean overloaded functions? -- yes.

>3) Does it generate Object Identifier (OID) for each created object ?
>

For persistent objects yes.

>4) Is there any functions which enable to use these OID ? ( for instance
>
>: REF, DEREF, ISDANGLING...)
>

Yes, ref, deref, reftohex, make_ref
isdangling is implemented via if (deref(OID) IS NULL)

>5) Is it possible to define links between several object by using
>these OID ? (collection links...)
>

Yes.

>6) Does it support "inverse links" ?
>

don't know what you mean by "inverse links"

>6) Does it support polymorphism ?
>

>7) Is it possible to create views which enable to use relational tables
>and transform them into "object views" with OID ?
>

yes

>
>Well, I stop for this moment, I hope really somebody can help me.
>I am sorry for my English and I am waiting for reading from you soon.
>
>Thanks in advance
>
> Didier
>
>PS: if you need information about my work, send me an Email.
>
>

Thomas Kyte
tkyte_at_us.oracle.com
Oracle Government
Herndon VA

http://govt.us.oracle.com/ -- downloadable utilities

Opinions are mine and do not necessarily reflect those of Oracle Corporation

Anti-Anti Spam Msg: if you want an answer emailed to you, you have to make it easy to get email to you. Any bounced email will be treated the same way i treat SPAM-- I delete it. Received on Thu May 14 1998 - 17:29:26 CDT