Re: mysql cluster allows on- line upgrades, is there anything like that in Oracle?

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Date: Sun, 3 Jun 2012 05:20:24 -0700 (PDT)
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On Sunday, June 3, 2012 3:18:02 AM UTC-4, Mladen Gogala wrote:
> On Sat, 02 Jun 2012 11:13:08 -0700, zigzagdna wrote:
> > Does Oracle have any HA in shared nothing architecture like mysql
> > custer?
> Oracle has shared nothing clusters. They're called "MySQL Clusters". As
> for HA in shared nothing architecture, it's always achieved by
> replication, it cannot be achieved by any other way because there is no
> sharing in shared nothing cluster. Oracle supports several types of
> replication: advanced replication (trigger based), STREAMS replication,
> Golden Gate replication and active standby (11G).
> --

I am not sure in active standby (11G), one can do rolling uupgrade of database without nring Oracle downtime for few minutes/seconds. I could not find anything on google for active standby, but for physical standby, see link but it requires some down time. Also I do not know whether SAP Oracle Database can be converted to logical standby. Received on Sun Jun 03 2012 - 07:20:24 CDT

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