Standard Edition High Availability

Johannes Ahrends

On May 7th Oracle released “Standard Edition High Availability” (SEHA). There has been a high availability gap so far because (…)


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Oracle 12.2.0.1 Support Extended

Johannes Ahrends

April 15th was patch day again. New security patches, patch sets, release update and whatever they are named became available. (…)


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Data loss with Database Services

Johannes Ahrends

In one of my projects we had a disaster most recently: An application was connected to two databases simultaneously and (…)


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Multitenant for Everybody

Johannes Ahrends

At the Openworld conference 2019 Oracle announced that Oracle 19c will allow up to three pluggable database per database on (…)


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Cloning with RMAN is easy!

Johannes Ahrends

In this blog I will show you how to use an RMAN backup to create a database clone. In my (…)


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Recovery with RMAN is easy!

Johannes Ahrends

In this blog I will show you how easy it is to restore a corrupted tablespace or datafile using RMAN. (…)


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Backup and Recovery with RMAN is easy!

Johannes Ahrends

About 8 years ago I wrote a blog named: It’s so Easy to use RMAN for Backups. So it’s time (…)


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No RAC for Standard Edition!

Johannes Ahrends

If you read through the actual Oracle 19c documentation, esp. the “Database Licensing Information User Manual” you might notice that (…)


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Oracle 18 XE and Multitenant

Johannes Ahrends  3

As already mentioned in my blog “Oracle 18 XE is available” theĀ  XE version includes the multitenant database option. So (…)


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Oracle 18 XE – First Impressions

Johannes Ahrends  2

Oracle XE has many features and options which even most of the Oracle Enterprise Edition customers do not have access (…)


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