Beiträge getaggt mit RMAN

New OU EMEA Newsletter Article: Tablespace Point In Time Recovery

Veröffentlicht von Uwe Hesse in TOI am April 14, 2009

An article that I have posted on my Downloads page got published in the April Oracle University EMEA Newsletter. It is about Tablespace Point In Time Recovery – a technique, useful especially if you host mutliple applications in one Oracle Database, each of them associated with one tablespace and you want to correct a logical mistake for that application. Instead of turning the whole database with all applications into the past – to before the occurence of the logical mistake – you take just one and leave the status of the other applications – respectively their data – untouched.

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Use RMAN to create your standby database without a previous backup

Veröffentlicht von Uwe Hesse in TOI am Januar 19, 2009

This week, I have an 11g Data Guard course in Duesseldorf, Germany. This is one of my favorite courses – Data Guard is so cool! All you need is a configuration file for your standby DB and start it NOMOUNT. Then you invoke RMAN and let it do the dirty work:

RMAN> connect target sys/oracle@prima;

RMAN> connect auxiliary sys/oracle@physt;

RMAN> duplicate target database for standby from active database;

This command works without a previous backup of the primary database – an 11g New Feature. In 10g, you simply take an online backup of the primary and then you issue the command

RMAN> duplicate target database for standby;

You may find a more detailed explanation of the creation of a standby database here.

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