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Re: backup procedure from newbie

From: John Smith <alankan_at_edamail.com.ph>
Date: Thu, 15 Mar 2001 08:59:31 +0800
Message-ID: <3ab01528@news.sysads.com>

just got hold of the book after my posting, i stand corrected resetlogs should only be done after incomplete recovery or recovery using backup control files.

good thing we haven't done it yet.

alan

"Howard J. Rogers" <howardjr_at_www.com> wrote in message news:3aaf65b5_at_news.iprimus.com.au...
>
> "Alan Kan" <alankan_at_edsamail.com.ph> wrote in message
> news:01c0ab5e$6e5df220$0400a8c0_at_rich...
> > hi,
> >
> > we're running our test database in archive log mode,
> > weekly we do our cold backup and full database
> > export.
> > my question is it safe to issue 'ALTER DATABASE
> > OPEN RESETLOGS' every after cold backup even
> > without recovery is done?
>
> Are you utterly out of your mind, or is it that you simply haven't a clue
> what you are doing?
>
> Why on Earth would you ever want to issue a resetlogs unless you really
> needed to? It renders all prior backups useless, and all prior archives
> worthless. Your database is thus rendered, for the moment, completely
> unrecoverable.
>
> Frankly, this is not even worth pursuing. Read up on backup and recovery
> basics, and then ask yourself your own question.
>
> Jeez.
>
> > i read that resetlogs reinitializes the control files too.
>
>
> Where did you read this? The I-Spy book of Oracle DBA'ing? Come on.....
 do
> some basic research for yourself. Backup and Recovery is a huge subject,
> and a resetlogs has huge implications. The last thing you do is a
> resetlogs, and most DBAs will churn heaven and high water to avoid having
 to
> issue one. Yes, it re-initialises the Control File (whatever that means),
> but that's the least of your worries.
>
> >
> > also do we need to include in our backup scripts the
> > archive log files too?
>
> This is such an utterly daft question, I can tell that you haven't even
 read
> the Oracle HTML guides on Backup and Recovery principles. Go visit
> technet.oracle.com to do so. Then in years to come, you'll be able to
 amuse
> your grandchildren with anecdotes about the questions you used to ask of
 the
> newsgroups. Honestly, this one is such a howler that it doesn't really
> deserve an answer (though it is "yes").
>
> >
> > many thanks and support for new technologist.
> >
>
> Alan: do yourself a favour. Spend around $100US on the Oracle Press
 Backup
> and Recovery handbook. It's not perfect, and I reckon I could write my
 own
> version that would at least be slightly more amusing.... but you might
> actually learn something to your advantage were you to read it.
>
> Amazon.com have a wide array of Oracle books (just type in "Oracle" and
 then
> click "Go!" on their search facility).
>
> HJR
>
>
>
> > alan kan
>
>
Received on Wed Mar 14 2001 - 18:59:31 CST

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