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Practical Materials Available for Free Download

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In our download area, you will find a comprehensive collection of high-quality materials based on decades of experience in the database industry. These resources, developed from numerous projects and implementations, cover a wide range of topics—from migration strategies and performance optimization to security concepts for Oracle and PostgreSQL.

Our goal is to provide you with access to this solid expertise, thereby elevating your database projects to a new level. Whether you are planning a complex migration, looking to improve your database performance, or searching for innovative solutions to specific problems, you will find valuable insights and actionable guidance here. Our materials are for you:

Free of Charge: All materials are available to you at no cost.
Always Up-to-Date: We continuously analyze new Oracle versions and PostgreSQL developments to provide you with timely and relevant information.
Practical and Diverse: Our content covers a wide range—from fundamentals to advanced concepts—and is based on real project experiences.
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Data Guard and Multitenant

03/27/2019

Johannes Ahrends

Data Guard is easy

03/27/2019

Johannes Ahrends

To be or not to be – Does the DBA die out?

01/25/2018

admin

At Oracle OpenWorld 2017 Larry Ellison announced the “Oracle Autonomous Database”. Does that mean a DBA is no longer…

Data Guard Best Practices

03/13/2018

Johannes Ahrends

Tips and Tricks about the setup and usage of Data Guard and the Data Guard Broker

High Availability and Disaster Recovery

03/13/2018

Johannes Ahrends

Practical experiences with Multitenant

03/13/2018

Johannes Ahrends

Migration auf die Standard Edition und Unicode

10/17/2012

Johannes Ahrends

SQL Optimierung – nur etwas für Entwickler?

09/18/2012

Johannes Ahrends

Kostenersparnis durch die Umstellung auf Standard Edition und Unicode

10/18/2012

Johannes Ahrends

Was man mit Replikationen so alles machen kann

06/14/2012

Johannes Ahrends

Oracle11g Konfiguration

01/19/2012

Johannes Ahrends

Hochverfügbarkeit mit der Standard Edition

01/18/2012

Johannes Ahrends

Automatic Memory Management

01/16/2012

Johannes Ahrends

Index oder nicht Index?

02/28/2013

Johannes Ahrends

Unicode Migration nach Oracle …

03/15/2013

Johannes Ahrends

Plug oder lieber doch nicht?

05/14/2013

Johannes Ahrends

Herausforderungen bei der Unicode Migration von Datenbanken

06/20/2013

Johannes Ahrends

Was man bei einer Minimal Downtime Migration beachten muss

09/12/2013

Johannes Ahrends

Oracle 12c – Ein Meilenstein in der Datenbankentwicklung!?

10/16/2013

Johannes Ahrends

Keynote Session – für wen lohnt sich schon der Umstieg auf Oracle 12c?

11/20/2013

Johannes Ahrends

Oracle 12c Pluggable Database

05/08/2014

Johannes Ahrends

Es gibt ein Leben nach Streams und Advanced Replication!

05/08/2014

Johannes Ahrends

Oracle Backup und Recovery

05/20/2014

Johannes Ahrends

Flashback Archive – endlich für alle nutzbar!

06/03/2014

Johannes Ahrends

Oracle 12c Pluggable Database

06/12/2014

Johannes Ahrends

Oracle Standard Edition – eine echte Alternative!?

06/12/2014

Johannes Ahrends

Replikation und/oder Standby ? Unterschiede und Gemeinsamkeiten

09/18/2014

Johannes Ahrends

Unicode Migration, Chance and Challenge

09/28/2014

Johannes Ahrends

Oracle 12c Standard Edition – was geht und was geht nicht?

10/21/2014

Johannes Ahrends

Oracle 12c Security

04/16/2015

Johannes Ahrends

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