Lets go for the first 3. Do not know the answer to the last two.
Davor
-----Original Message-----
From: PREMKUMAR, N [Non-Pharmacia/8042]
[mailto:[EMAIL PROTECTED]]
Sent: Friday, March 30, 2001 11:24 AM
To: '[EMAIL PROTECTED]'
Subject: (ROSE) OBJECT - RELATIONAL Database Modeling
Hi All,
I have to represent complex-biology-data in a database that would
require more abstractions to be built-in so that the db would answer all the
generic queries.
Can anyone tell me about:
* the advantages of using OBJECT-RELATIONAL features in database
in terms of application-coding,
generic-context-related-search etc.
dg> ORDBMS will give you the ability to be more flexible in defining your
tables by using domains, user defined data types, etc. however do not expect
to be able to store multidimensional data with less effort than in RDBMS.
The ORDBMS offer more possibilities for relationships between tables.
Storing bio-data (and here i do not know about the kind of data you are
talking about - bio is huge) always depends on some primitive factors:
amount of data, size of data, type (or kind) of data, etc. - there can not
be an overall suggestion to go for ORDBMS, OODBMS, or even an RDMBS, which
would still be the first choice in 90% of cases.
* to what extent oracle supports ORDB functionalities.
Besically the support of ORDBMS is the same at all of the major companies.
The offer some typing possibilities, and some additional relationships. They
offer inheritance, etc. Do not forget that using any of these with huge
amount of data costs huge amount of time.
* to what extent RationalRose supports ORDB designing.
Rational Rose supports user defined domains
* Any sample-implementations (app-side and db-side ) available in
public-domain?
do not know.
* Any helpful sites .. regarding this.
sorry
Thanks verymuch in advance
Prem
-----Original Message-----
From: Patrick Kennedy [mailto:[EMAIL PROTECTED]]
Sent: 30 March 2001 8:06
To: R Thirunavukkarasu; [EMAIL PROTECTED]
Subject: Re: (ROSE) Primary Key in Data modeler
Assumming you have 2001 (feature did not exist yet in 2000e)
right click on the attribute in question in the Rose
Browser,
Data Modeler, Part of object Identity. It will now be used
as the PK when you transform.
Patrick Kennedy
Rational Support
On Mar 29, 17:23, R Thirunavukkarasu wrote:
> Subject: (ROSE) Primary Key in Data modeler
>
> Hi all,
>
> While transforming a package from logical view to
> schema, Rose adds primary key for each table. Instead
> I want to define one of the attributes in the class as
> the identifier and use that as primary key. Can
> anybody tell how to change this option in Rose?
>
> Thanks in advance
>
> R.Thiru
>
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>-- End of excerpt from R Thirunavukkarasu
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