All articles

SQL Server 2016: Microsoft R Server

In my last article, I wrote about the R Services into SQL Server. Now, Microsoft provides an open source R platform to complete this new SQL Server integrated feature in 2016.

When a query has read 350TB after 73K nested loops

By Franck Pachot . According that you have Tuning Pack, SQL Monitor is the right way to see what a query is currently doing. A query was running for days and the first figure I see is that it has(…)

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(…)

Testing Oracle on exoscale.ch

By Franck Pachot . My last post came from a discussion at SITB with exoscale. They are doing Cloud hosting with datacenters in Switzerland. In Switzerland(…)

Can you become a PaaS provider for an Oracle Database service?

By Franck Pachot . This post is not about technical limitations: Oracle Database is supported in most hypervisors (certified or not) so anybody can provide a DBaaS through a virtual machine as long as it run a supported OS, has(…)

The (almost) same sample schema for all major relational databases (4) – MSSQL

In previous posts, my colleague Daniel Westermann explained how to install the “Dell DVD Store Database Test Suite” into PostgreSQL, Oracle and MySQL. This time, this is my job to present you how to proceed(…)

Connecting your PostgreSQL instance to a MariaDB/MySQL instance

Some time ago I blogged on how to connect your PostgreSQL instance to an Oracle instance (here and here). In this post I'll do the same with a MariaDB/MySQL instance.

APEX Connect 2016 – Day 2 – APEX

After the great Keynote about “APEX Vision, Past, Present, Future” by Mike Hichwa, the father of APEX, I decided to attend presentations on following topics: – Dynamic Actions 5.1 – APEX and Oracle JET – Enterprise UX(…)

Columnstore index rebuild cannot start

A couple of weeks ago, I was charged to migrate an SQL Server datawarehouse environment to a more recent version of SQL Server (from 2005 to 2012 in my case). After discussing with my customer we decided to benefit from(…)

SCOM: Creation of a group in order to subscribe to alerts

I am currently managing at one of my customer a monitoring project that concerns SQL Server instances and SCOM (System Center Operation Manager). The project includes many instances, more or less 50, divided in two environment (Production and Test) and(…)