Blog Archives

Playing with Google Authenticator and Oracle Cloud – Securing SSH to Oracle account with two factor authentication

The Requirement Increase security when connecting via SSH to the Oracle OS account at Oracle Cloud by implementing two factor authentication (TFA or 2FA). The Environment Oracle Cloud Instance OS: Oracle Linux 6.9 The Implementation For this exercise we will

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Posted in Cloud, General, Linux, Oracle Cloud, Others, Security, Tutorials

How to Solve: SQL Developer can’t start because MSVCR71.dll is missing (On Windows)

I have installed SQL Developer (with JDK) on Windows many times before, and almost all the time I receive the system error bellow when trying to execute it by the first time. Due to this, I decided to publish the

Posted in General, Others, Questions, Tutorials

My Latin American Tour in March

At March I will be presenting my very successful seminar “Mastering Backup and Recovery” in some countries of Latin America for the very first time. Thank you Panama, Chile and Brazil OUGs for inviting me to your amazing countries! Please,

Posted in 11gR2, 12c, Books, General, News, Others, Questions, Tutorials

My book: Oracle Database 12c Backup and Recovery Survival Guide

It was a long journey of hard work and team work that now has finished, as a result you will find my book Oracle Database 12c Backup and Recovery Survival Guide that I wrote with the help of my good

Posted in 12c, Backup & Recovery, Books, DBA Career Tips, General, Interview Tips, Others, Questions, Scripts, Tutorials, White Papers

Why use OVM for Oracle Databases

Some time ago I made a benchmark exercise to compare the performance of an Oracle Database running in a bare metal environment versus a virtualized environment to clear some of the main questions our team and clients in Revera have,

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Posted in Cloud, General, News, Others, OVM, Virtualization, White Papers

Playing with VirtualBox, Oracle 12c (12.1.0.1) and OEL 6.4 – Part 2

We will complete our lab by installing the Oracle Database software, create a Pluggable database and take a look in the Oracle Enterprise Manager Database Express. The steps to install and create an Oracle Database 12c are: 1 – Go

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Posted in 12c, General, Linux, Others, Tutorials, Virtualization

Are you getting short of SCN?

Did you know that Oracle has determine that some software bugs (affecting databases between version 10.1.0.5 and 11.2.0.3) could cause the database to attempt to exceed the current maximum SCN value (The limit is currently 281 trillion) causing a transaction

Posted in General, News, Others