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Re: NEWBIE: copying a schema from one instance to another

From: John P. Higgins <jh33378_at_deere.com>
Date: Sat, 11 Jul 1998 20:02:44 -0500
Message-ID: <35A80B33.A1ED03C7@deere.com>


You can also do this with a hot backup. Just be sure to copy the relavent archived logs and recover until time.

Leonard F. Clark wrote:

> HAP,
>
> There is a *much* faster way - if you've planned for it. Simplest is
> on different boxes. Take a cold backup of your source. Recover the
> backup to your target - with all files in *exactly* the same location.
> You now have a copy database with same database name.
>
> If you want to change database name and location of files (which
> you'll have to do if you only have a single machine), you can do this
> but you will need to backup the control files to trace, rename the
> database (and control files, if you want to) and recover the new
> control file. You will also need to startup nomount (I think, of
> hand) and "rename" the files, if you need them in different locations
> - or even change the name. If you always do this in a consistent
> manner, you can write a script to manage most of it.
>
> Len
>
> On Sat, 11 Jul 1998 01:58:32 -0400, HAP <shield_at_mindspring.com> wrote:
>
> >Hi, there out in Oracle land. It's 1:45AM and I am a slave to an inport
> >that I am running now. It has been running since 7:30PM from the prior
> >day.
> >
> >I have been analyzing what I have done and I would like some advice. I
> >am copying the tables in our production schema to our test schema as a
> >massive update. The production schema is in a separate instance from the
> >test schema.
> >
> >Here's what I propose to do next time I have to do this (BTW the
> >structure of both schemas is the same):
> >
> >1. Export source tables
> >2. Export target schema
> >3. Disable constraints on target
> >4. Remove data from target.
> >5. Import source tables into target (with ignore create error)
> >6. Enable contraints on target
> >
> >What do you think? Is it overkill to use exp and imp? Is there a
> >better/faster way to do this?
> >
> >PS. This kind of think doesn't happen often. If it did, I would be
> >exploring the replication options.
> >
> >Many thanks in advance!
> >
> >HAP
> >
> >
Received on Sat Jul 11 1998 - 20:02:44 CDT

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