Re: Cross platform migration from 10.2.0.4 to 11gR2
- From: Marcin Przepiorowski <pioro1@xxxxxxxxx>
- To: jhthomp@xxxxxxxxx
- Date: Thu, 8 Jul 2010 07:36:30 +0100
On Wed, Jul 7, 2010 at 4:58 PM, John Thompson <jhthomp@xxxxxxxxx> wrote:
> We faced almost the exact dilema but had a shorter downtime window of 6
> hrs. Because of that, we had to use streams. Using this method, downtime
> was less than 30 mins. during the switchover.
>
Hi,
Streams has one potential disadvantage - if you are doing a huge
updates on table it will be converted into number of row by row
changes so replication time will be impacted.
This same issue appear in Logical Standby too.
regards,
--
Marcin Przepiorowski
http://oracleprof.blogspot.com
--
//www.freelists.org/webpage/oracle-l
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