Re: PreCreate Oracle Tables
- From: "Gene Sais" <Gsais@xxxxxxxxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 18 Feb 2004 15:46:38 -0500
Thank you for your response. I forgot to mention, its not an exact
copy. I need to move some tables, indexes, change storage, and exclude
one schema. I do like option #5, can never test backup/recovery enough!
But, if you had to choose 2 or 3, which would you choose?
>>> Daniel.Fink@xxxxxxx 2/18/2004 3:34:09 PM >>>
Don't forget option 5) Use a backup from production and perform a full
recovery. It not only creates the database, it tests your production
backups and refreshes your recovery skills.
If there are not any changes to the db, I like 4 as it is very quick
and
painless.
Gene Sais wrote:
> When copying a database, what are the best practices?
>
> 1) I typically, perform a full export from db A, create db B, import
> dump from A into B.
>
> 2) Same as 1, but precreate tables with indexfile and then import
> ignore=y.
>
> 3) Same as 1, but precreate tables with dynamic sql (create table
emp
> as select * from emp@dblink where 1=2), then import ignore=y.
>
> 4) Copy datafiles, recreate controlfile and rename db.
>
> I am looking to precreate the objects before importing the data and
in
> the past, I have used #2, but #3 is more flexible and requires no
> editing of indexfile.
>
> Are they any disadvantages of using #3 from #2?
>
> Thanks,
> Gene
>
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