Oracle Database Hang, no one was able to connect

Posted on by Ahmed Abdel Fattah

What is the problem? I received an email from the client that no one was able to connect to the database this morning (after 8:20 am).This case is a good example to show you how it is important to collect information about the issue from the concerned people before diving into the log files and … Continue reading Oracle Database Hang, no one was able to connect

Oracle Virtual Machines for Sale !

Posted on by Ahmed Abdel Fattah

Are you looking for a virtual machine to do some hands-on labs or practice something (i.e. for Educational purposes}? Do you have the time to build these virtual machines yourself? Below are some really nice Virtual Machines, that I invested allot of time to build on Oracle Virtual Box, and that I used them personally … Continue reading Oracle Virtual Machines for Sale !

Removing Oracle Database Software 12.2 (Grid + Database)

Posted on by Ahmed Abdel Fattah

I have an Oracle Restart virtual machine that has both Oracle grid Infrastructure 12cR2 (12.2) and Oracle Database 12c R2 (12.2) + one CDB database called "orcl". I need to fully remove all oracle components from this machine. About the Deinstallation Tool Starting with Oracle Database 12c, the deinstallation tool is integrated with the database … Continue reading Removing Oracle Database Software 12.2 (Grid + Database)

What is the difference between Oracle RAC One Node and Oracle RAC?

Posted on by Ahmed Abdel Fattah

https://www.youtube.com/watch?v=ZM6ckWFlyeM ThanksAhmed

Protected: Oracle RAC 12c Installation on Linux

Posted on by Ahmed Abdel Fattah

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Oracle Database Password file presentation

Posted on by Ahmed Abdel Fattah

https://youtu.be/sHUMO-uVYqU ThanksAhmed

Oracle Database Guard 12c Implementation with RAC (Step-by-Step)

Posted on by Ahmed Abdel Fattah

Introduction: This is a real data guard implementation case for one of my clients. Data Guard is implemented between two clusters that reside on two different supercluster machines. The below procedure applies between any two clusters, it doesn't matter if it is a supercluster or Exadata or normal servers. I tried to put as much … Continue reading Oracle Database Guard 12c Implementation with RAC (Step-by-Step)