Pluggable Database Management with Toad 12.1

Johannes Ahrends

Multitenant Database Multitenant or pluggable database is probably the most discussed feature in Oracle 12c. For many of us DBAs (…)


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My Database becomes invisible

Johannes Ahrends

Invisible Indexes With Version 11g Oracle introduced invisible Indexes and I had several discussions with customers why it makes sense (…)


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Unicode Migration to Oracle 12c

Johannes Ahrends

1. Migration Scenarios Over the past years I’ve done several Oracle database migrations to a different platform (e.g. HP/UX to (…)


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Using Umlaute in US7ASCII – doesn’t work, does it?

Johannes Ahrends

Creating an Oracle database with character set U7ASCII should be an exception nowadays. So if you try dbca (database configuration assistant) in (…)


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Quest Backup Reporter

Johannes Ahrends

Since April 21st there is the new Quest Backup Reporter. With this it is really simple to create reports on (…)


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Block Media Recovery of Standby WITHOUT ACTIVE DATAGUARD

Johannes Ahrends  4

You can read everywhere how great the Automatic Block Media Recovery of the Oracle 11g Release 2 is. That is (…)


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Switch from WE8 Character Set to Unicode

Johannes Ahrends

As mentioned in my blog “Character Set Conversion with CSALTER – Does that actually work?” it is however possible to (…)


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Automatic Memory Management – it’s great isn’t it?

Johannes Ahrends

As you might have read in my previous blogs I did some tests with Oracle 10g and 11g on Linu (…)


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It’s so easy to use RMAN for Backups

Johannes Ahrends

It’s quite interesting that very many DBAs still use other methods than RMAN to backup their databases. I don’t mean (…)


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Changing the IP Addresses in a RAC Cluster in the Oracle 11g Release 2 (11.2.0.3)

Johannes Ahrends

Due to moving into the new office I had to change several configurations in my infrastructure. Sure, the Linux and (…)


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