Categories: Events

Free webinar – Tackling the Gaps and Islands Problem with T-SQL Window Functions

I’m hosting a free webinar at MSSQLTips.com at the 19th of December 2024, 6PM UTC. The topic is about window functions, something that really interests me and that should be in the toolbox of every season SQL developer. The abstract:

The gaps and islands problem is a common problem in data analysis. Some examples are:

  • How long are active periods that my server was running? Or, how long are the periods that the server was down?
  • On average, how long are the billable periods of my consultants?
  • What was the longest stretch of days without rain?

In this session, you’ll be introduced to the powerful concepts of window functions in T-SQL. With a practical use case, the gaps and islands problem is explained and solved. At the end of the session, you should feel confident in using window functions in your own data analyses.

A basic understanding of T-SQL querying concepts is required to follow this session.

I hope to see you there!


------------------------------------------------
Do you like this blog post? You can thank me by buying me a beer 🙂
Koen Verbeeck

Koen Verbeeck is a Microsoft Business Intelligence consultant at AE, helping clients to get insight in their data. Koen has a comprehensive knowledge of the SQL Server BI stack, with a particular love for Integration Services. He's also a speaker at various conferences.

Recent Posts

Book Review – Agile Data Warehouse Design

I recently read the book Agile Data Warehouse Design - Collaborative Dimensional Modeling, from Whiteboard…

4 days ago

Cloudbrew 2024 – Slides

You can find the slides for the session Building the €100 data warehouse with the…

1 week ago

Book Review – Microsoft Power BI Performance Best Practices

I was asked to do a review of the book Microsoft Power BI Performance Best…

1 month ago

Create a Numbers Table in Power Query

This is a quick blog post, mainly so I have the code available if I…

1 month ago

Microsoft finally adds Tenant Switcher for Fabric / Power BI

Praise whatever deity you believe in, because it's finally here, a tenant switcher for Microsoft…

1 month ago

Book Review – Humanizing Data Strategy by Tiankai Feng

This book was making its rounds on social media, and the concept seems interesting enough…

1 month ago