22-25 April 2026 
Olivier Van Steenlandt
Olivier Van Steenlandt is a Business Intelligence Professional who spent most of his early career assisting retail companies to get more value of their data using the Microsoft BI Stack (SSIS, SSAS, SSRS, Power BI).
As his first experience in the field (in Business Intelligence), Olivier worked as a Big Data Analyst using tools such as Hadoop and Spark.
In 2015 the focus changed to traditional data warehousing & reporting using SSIS, SSRS & MicroStrategy. A bit later, around June 2019, the opportunity arose to fill the position of BI Teamlead. In this function he was able to set up a hybrid BI Team (team members in Belgium and Belarus).
Early 2020, Olivier joined the dataMinds crew as a core member, assisting to organise several events.
Around April 2021, Olivier started a new position as BI Teamlead in another Retail Company to support business growth. Besides the challenge to help the BI Team grow and deliver projects on time, he started to use SSAS & Power BI.
In April 2025, Olivier stepped away from internal positions and became an independent consultant.
When Olivier is not working there is a high chance that you find him on a football field, studying (BI Related), playing music (Saxophone / Piano) or cooking.
Olivier Van Steenlandt's Sessions
Apache Spark for SQL Data Warehouse DevelopersSQLBits 2025
Are you wondering how to get started with Apache Spark? Are you currently working with SQL Server or Azure SQL (MI)? Or, are you a Data Warehouse developer?
Apache Spark gained popularity in the past few years and became the new cool kid on the block. But what is Apache Spark and how can we leverage its capabilities? Which skills do we need? During this session, I will show you how we can use Apache Spark starting from our existing SQL skillset.
In this session, we will start with a brief introduction to Apache Spark and we will learn how we can use our SQL knowledge within Apache Spark.
After a short introduction, we will be focussing on practical examples and we will be comparing how we will solve challenges in SQL, and what the alternatives are in Apache Spark. Throughout the session, we will make the examples more elaborate and complex as we go.
You will learn how you can apply your SQL knowledge in Apache Spark.
By the end of this session, you will have a solid understanding of how you can use your SQL skills to solve challenges with Apache Spark.
Migrating from SSRS to Power BI Paginated ReportsSQLBits 2025
In this session, I will be talking about my journey of migrating SSRS Report to Power BI Paginated reports. We will walk through challenges where I ran into, how to overcome them and how to complete the migration successfully.
Database Unit Testing for Data ProfessionalsSQLBits 2026
In this session, we will dive into the world of Unit Testing for databases, with a focus on Data Warehousing solutions.
Before we dive into practical examples, we need to understand the key concepts and the importance of Unit Testing.
As soon as the basics are set, we will talk about different possibilities/frameworks to implement Unit Testing.
Near the the halfway mark, we will dive into the tSQLt Framework specifically and we will start to get more practical.
What are we going to discover?
* How to create 1 or more Test Classes?
* How to create different Unit tests?
* What's possible with tSQLt?
* How to automate your Unit tests?
If you are wondering how to get started with Unit Testing for Data Warehouse solutions or databases in general this session is for you!
Apache Spark for SQL Data Warehouse DevelopersSQLBits 2025
Are you wondering how to get started with Apache Spark? Are you currently working with SQL Server or Azure SQL (MI)? Or, are you a Data Warehouse developer?
Apache Spark gained popularity in the past few years and became the new cool kid on the block. But what is Apache Spark and how can we leverage its capabilities? Which skills do we need? During this session, I will show you how we can use Apache Spark starting from our existing SQL skillset.
In this session, we will start with a brief introduction to Apache Spark and we will learn how we can use our SQL knowledge within Apache Spark.
After a short introduction, we will be focussing on practical examples and we will be comparing how we will solve challenges in SQL, and what the alternatives are in Apache Spark. Throughout the session, we will make the examples more elaborate and complex as we go.
You will learn how you can apply your SQL knowledge in Apache Spark.
By the end of this session, you will have a solid understanding of how you can use your SQL skills to solve challenges with Apache Spark.
Migrating from SSRS to Power BI Paginated ReportsSQLBits 2025
In this session, I will be talking about my journey of migrating SSRS Report to Power BI Paginated reports. We will walk through challenges where I ran into, how to overcome them and how to complete the migration successfully.