Re: Rant

But if you restore to a clone and then export and import you won't have the tablespace offline will you? RBG
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Tuesday, July 23, 2002 1:53 AM

> What Ruth describes is "tablespace point in time recovery" or incomplete
> recovery. I believe the question was about performing complete recovery
on
> a single tablespace while the rest of the database is in use. (I could be
> wrong in this assumption.)
>
> If a single tablespace (other than SYSTEM!) needs complete recovery, then:
>
> 1) SQL> alter tablespace BAD_ONE offline;
> 2) restore corrupted tablespace datafile(s) from backup
> 3) restore archive log(s) from backup if necessary
> 4) SQL> recover tablespace BAD_ONE;
> 5) SQL> alter tablespace BAD_ONE online;
>
> While this is happening, object in other tablespaces are fully accessible,
> except that there may be some issues with objects in other tablespaces
that
> reference objects in the BAD_ONE tablespace (e.g. foreign key constraints
> referencingtables in BAD_ONE, tables in other tablespaces with CLOBs
stored
> out-of-line in BAD_ONE, tables with primary or unique key constraint
indexes
> in BAD_ONE, etc.). There are a few variations on the theme for step 5 -
for
> example, "recover datafile" perhaps if all the datafiles for the
tablespace
> are not corrupted.
>
> Don Granaman
> [certifiable OraSaurus]
>
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> Sent: Monday, July 22, 2002 1:13 PM
>
>
> You have to restore the tablespace with the datafile you want to restore
to
> a clone database and export the datafile's contents from the clone and
> import it into the database with the bad datafile.
>
> HTH,
> R
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> Sent: Monday, July 22, 2002 12:13 PM
>
>
> I read your rant, and I agree with you. But I do have
> one little itsy bitsy question...
>
> > I also asked them how they'd put a tablespace in
> > backup mode. Simple enough, right? Not one of them
> > got it right. Not even close. Didn't have clue as to
> > what I was talking about. Fair enough, you don't
> > know. Well how about a simple recovery scenario. I
> > asked every candidate how they would do an online
> > recover of a datafile while the database was still in
> > use. No ideas. Not even close.
>
> How DO you do an online recovery of a datafile while the
> database is still in use? I've had to do recoveries before,
> but never this scenario.
>
> Thanks,
> Mike
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> Author: Vergara, Michael (TEM)
> INET: mvergara_at_guidant.com
>
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> Author: Ruth Gramolini
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> Author: Don Granaman
> INET: granaman_at_cox.net
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Ruth Gramolini
  INET: rgramolini_at_tax.state.vt.us

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