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Are Database Templates useful?

Johannes Ahrends

If you create a database using dbca (Database Configuration Assistant) step 3 allows you to select one of two templates (…)

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Read-Only Oracle Home

Johannes Ahrends

Since Oracle 18 (with some restrictions) it’s possible to set the Oracle software installation directory <ORACLE_HOME> into read only.  And (…)

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Standard Edition High Availability

Johannes Ahrends  2

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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