Daniel Westermann

OTN Appreciation Day : ADVM

Tim Hall had the idea that as many people as possible would write a small blog post about their favorite Oracle feature and we all post them on the same day. Here is my favorite feature: ADVM -(…)

How to patch Postgres Plus Advanced Server in a Standby configuration

In the last post we looked at how you can patch a Postgres Plus Advanced server. Wouldn't it be nice, in a standby configuration, to patch the standby first without touching the master, then do a controlled(…)

Fun with PL/SQL code reviews – Part 1

For quite a long time I did not work anymore with PL/SQL and was quite happy when I had the chance to review some code at a customer. The status today: I am not that happy anymore(…)

How to patch Postgres Plus Advanced Server

As with any other software there comes the time when you need to patch your Postgres Plus Advanced Server instances. Is that different from patching Community PostgreSQL? Yes and no :) The difference is(…)

Running PostgreSQL on ZFS on Linux – Compression

In the last posts in this little series we looked at how to get a ZFS file system up and running on a CentOS 7 host and how snapshots and clones can be used(…)

Running PostgreSQL on ZFS on Linux – Fun with snapshots and clones

In the last post we looked at how to get a ZFS file system up and running on a CentOS 7 host and how to enable the auto mount of the ZFS file systems. In this post(…)

Running PostgreSQL on ZFS on Linux

ZFS for Solaris is around for several years now (since 2015). But there is also a project called OpenZFS which makes ZFS available on other operating systems. For Linux the announcement(…)

Connecting your PostgreSQL instance to an Oracle database – Debian version

Some time ago I blogged about attaching your PostgreSQL instance to an Oracle database by using the oracle_fdw foreign data wrapper. This resulted in a comment which is the reason for this post: Doing the same(…)

What the hell are these template0 and template1 databases in PostgreSQL?

When people start to work with PostgreSQL, especially when they are used to Oracle, some things might be very confusing. A few of the questions we usually get asked are: Where is the listener and how can I configure it?(…)

Securing your connections to PostgreSQL by using SSL

Security is a big topic today and in the news almost every day. As the database usually holds sensitive data this data must be well protected. In most cases this is done by encrypting critical data inside the database and(…)