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Re: Oracle Instances for a new application

From: John Roberts <jrobert1_at_netcomuk.co.uk>
Date: 1997/11/22
Message-ID: <01bcf798$eb8b8410$7de52ac2@nsl23ejohn>#1/1

Jeff,

you don't need a new instance here - all you need is a new schema. A schema is just an Oracle user with a collection of tables. A database can hold a number of schemas e.g. the one you have for your current application and the one you may create for your new application.

Maybe some terminology will help :

a Database is just a collection of files that holds data

an Instance is a collection of operating system processes that makes it possible to access a Database.

A Schema is a collection of tables, indexes, views etc. that holds data for a specific purpose e.g. an application.

As long as you have similar up and down times for the 2 applications, you can use the same instance and database - you just need to point your users at different schemas.

Hope this helps ( if not, come right on back )

Regards

John Roberts

Jeff Kish <ait_at_concentric.net> wrote in article <3471e594.21559721_at_news.concentric.net>...
> Hello.
>
> Could someone advise me here?
>
> We have a developed application that uses Oracle.
> We have, of course, no D.B.A.
> Now there is a specification for a new application that will use a
> completely new Oracle database (all new tables).
>
> Our old one used the default instance (ORCL).
>
> We are running the server on NT 3.51
>
> How can I tell
>
> 1. Should I create a new instance for this new database? (How do I
> know it is appropriate given my current
> application/database/machine/server)
>
> 2. If so, how should I determine the parameters and more basically
> 3. How do I create a new instance?
>
>
> Thanks, Jeff Kish
>
Received on Sat Nov 22 1997 - 00:00:00 CST

Original text of this message

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