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Oracle standby licence

We're planning to buy new Oracle Database Enterprise Edition licence. We have two servers (Live and standby). Our standby server should be configured as a physical standby, and will be used only in ...
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PostgreSQL Failover strategy

I'm lost when it comes to choose the failover technology for my postgresql database. The options I currently see are: PG Cluster Streaming Replication Warm Standby (log shipping?) Hot Standby Is ...
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Can I have Oracle primary 11.2.0.1 and standby 11.2.0.3?

Can I have data guard system like: Primary: 11.2.0.1 Standby: 11.2.0.3 In logical standby ? In physical standby versions(releases) must be the same?
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Duplicate database for standby returns error ORA-19625: error identifying file /home/oracle/stdbyctrl.ctl

I'm working on creating duplication scripts for standby purposes. and it's constantly failing even though the backups are located in the exact same folder. DB structure is identical and spfile is ...
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PostgreSQL Hot Standby

I have two PostgreSQL servers running on my local Ubuntu machine (port 5437 is master, port 5438 is standby). While following the tutorial on http://wiki.postgresql.org/wiki/Hot_Standby I get this ...