Re: Nologging and partition exchange

  • From: Tim Gorman <tim@xxxxxxxxx>
  • To: Paul.Baumgartel@xxxxxxx
  • Date: Fri, 04 Jun 2010 07:54:08 -0600

Title: Nologging and partition exchange
Paul,

After any NOLOGGING operation, please perform an RMAN incremental level=1 backup as soon as possible.  Of course, level=0 or full is OK too, but the minimum is a level=1.  The time period between the completion of the load and completion of the backup is a window of risk of possible data loss in the event of media failure or corruption, and that window of risk is the tradeoff (i.e. speed vs recoverability) that must be consciously accepted using for the NOLOGGING operation.

Hope this helps...
Tim Gorman
consultant -> Evergreen Database Technologies, Inc.
postal     => P.O. Box 630791, Highlands Ranch CO  80163-0791
website    => http://www.EvDBT.com/
email      => Tim@xxxxxxxxx
mobile     => +1-303-885-4526
fax        => +1-303-484-3608
Lost Data? => http://www.ora600.be/ for info about DUDE...


Paul.Baumgartel@xxxxxxx wrote:

When a table is loaded with NOLOGGING and /*+ APPEND */ hint, then exchanged with a table partition, that partition remains unrecoverable, correct?

If you use this approach, how do you make the partition recoverable?

Paul Baumgartel
UBS AG
IB Accounting Solutions
400 Atlantic Street
Stamford, CT 06904

203.719.4368

paul.baumgartel@xxxxxxx
www.ubs.com


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