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” the  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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Oracle 18 XE is available!

Johannes Ahrends

On october 19th 2018 the wait had an end. Finally a new version of the free Oracle Database “Oracle Database (…)


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Oracle 12.2 Grid Inventory without NodeList

Johannes Ahrends  4

As most of you probably already know, the installation of Grid Infrastructure has changed with Oracle 12.2. The software has (…)


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Data Guard is easy

Johannes Ahrends

Data Guard is easy! Every Oracle database with a certain value for the business should be protected with a standby (…)


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Help, where am I? CDB or PDB … and which DB anyway?

Johannes Ahrends  14

About problems with Oracle 12c Multitenant Database Back in the days everything was easier, wasn’t it? Thus far you connect (…)


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Data Guard Protection Modes

Johannes Ahrends  3

The availability and consistency of the Standby Database changed evermore throughout the last years and by that the loss of (…)


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Oracle 12c Datapatch

Johannes Ahrends  2

With Oracle 12c the SQL commands belonging to one patch are not installed by but by the “datapatch” tool, which (…)


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