SWITCH

MariaDB manual Switchover

I’m going to explain how to do a manual Switchover in a MariaDB HA setups using master-slave replication. In my example, let’s consider that I’ve a server01 and server02, both running on Ubuntu 20.04. server02 is currently the master, server01(…)

Is it possible to switch a service between 2 pluggable databases?

Introduction In an Oracle database, services have multiple purposes: identifying group of users prior authenticating them enabling/disabling access to a database for particular groups managing preferred nodes on a RAC configuration redirecting users to the primary after a switchover/failover when(…)

Java JDK12: JEP 325: Switch Expressions

Eclipse setup In order to test Java JDK12 you will have to download Eclipse 4.11 at least. Then download JDK12 from Oracle’s web site. And configure Eclipse to use this JDK for the project. Also download the JDK12 support with(…)

SQL Server: switch partition and metadata inconsistency issue

In this blog post, I would like to share with you a weird issue I faced when I implemented a sliding Windows partition scenario on SQL Server 2014 SP1 at one of my customer. The idea was to keep SQL(…)

Changing an existing partition configuration … Well, not so easy!

This time let’s talk about an interesting customer scenario where table partitioning was implemented on a table with 100 GB of data on SQL Server 2014. Partitioning in this context aimed to save disk space  (archive data were compressed) , help(…)