Johannes Ahrends, Autor bei CarajanDB

New Oracle Release Policy

2. June 2017 Johannes Ahrends 1

With Version 12.2.02 the release policy for Oracle database will change drastically. During his keynote at DOAG 2017 Datenbank Andy Mendelsohn (…)

16. March 2017 Johannes Ahrends 14

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

24. February 2017 Johannes Ahrends

Flashback Pluggable Database Oracle 12.2 will be general available within the next few weeks including several new fetaures for Flashback (…)

30. January 2017 Johannes Ahrends 2

The Challenge There are some anomalies when using Multitenant Database with Data Guard. In the following example I will describe (…)

26. November 2016 Johannes Ahrends

Few weeks ago I had issues with naming conventions: In one of my projects a cloning software should be used. (…)

11. October 2016 Johannes Ahrends

Many people shared their favorite Oracle feature as blog post. Currently Oracle 12.1 is the most actual version but 12.x (…)

4. October 2016 Johannes Ahrends 4

Actually I have a project where we are going to set up a high availability infrastructure with RAC and Dataguard. (…)

22. September 2016 Johannes Ahrends 16

Hugepages and Large Pages If you run a Oracle Database on a Linux Server with more than 16 GB physical (…)

1. July 2016 Johannes Ahrends

In my last blog about Flashback Query “Flashback Query – Part 2” I had to admit that with Oracle Database (…)

1. June 2016 Johannes Ahrends

In my last blog “Flashback Functions – One Name, different Techniques“, I wrote about Flashback Functions. In this blog I (…)