Database Administration & Monitoring

About SSH keys in Oracle Public Cloud

When working with resources on the Oracle public cloud, whatever it is IaaS or PaaS, the principle access method is based on SSH keys exchange. Once our instance is created this is going to be the first and only way(…)

Launching a VM with the Amazon AWS command line tools

The cool thing with Amazon AWS is that you can use command line tools on your workstation to bring up and manage your services. In this post I’ll look into how you can launch a Linux VM from(…)

External tables in PostgreSQL?

In Oracle you can use the external table feature to load data from files into the database. The traditional way to do this in PostgreSQL is to use the copy command. But there is(…)

SQL Server Tips: Default trace enabled but no file is active…

I discover a strange error with a customer about the default trace. As you know, SQL Server has a default trace with a lot of events like the data and log file growth. This trace is enabled by default and(…)

Protect your oracle password function

By Mouhamadou Diaw Every DBA knows the famous oracle password verification script $ORALE_HOME/rdbms/admin/utlpwdmg.sql This function can be used to control password complexity. This script should be protected from unauthorized users. The reason is that by adding an insert(…)

PostgreSQL on Amazon RDS – Loading the beast

The last posts outlined how you can bring up a PostgreSQL instance in the Amazon cloud, how you can restrict access to the instance, how you can configure it and how you can(…)

PostgreSQL on Amazon RDS – Adding a replica to the beast

In the last post I looked on how you can change the PostgreSQL parameters when the instance is running in the Amazon cloud. In this post we’ll look at how to add a replica to the PostgreSQL instance(…)

log file sync / user commits

By Franck Pachot . When presenting 'Interpreting AWR Reports - Straight to the Goal' at UKOUG TECH15 I had a very good question about the Statspack report I read which had log file sync much smaller than user commits. I(…)

PostgreSQL on Amazon RDS – Configuring the beast

In the last post I looked at how you can strengthen the security for your PostgreSQL instance in Amazon RDS. In this post I’ll look at how you can configure your PostgreSQL instance. When you login to(…)

PostgreSQL on Amazon RDS – Securing the beast

In the last post I looked at how to bring up a PostgreSQL instance in the Amazon cloud. In this post I’ll look into how to restrict access to this instance to specific IP addresses to strengthen security.