Amsterdam, NL
Register now

SQLBI+ updates in April 2025

We released a new course for our SQLBI+ subscribers: Security in Tabular Semantic Models. This course explains how to implement security in Tabular semantic models, considering different requirements, data model design, DAX implementation, and performance. The training is reference material…  Read more

DAX Patterns

Transition matrix

The Transition matrix pattern analyzes changes in an attribute assigned to an entity at regular intervals For example customers might receive a ranking evaluation every month or products might have a rating score measured every week Measuring the changes in…  More on DAX Patterns


SQLBI Corp.

Optimizing DAX, Second Edition

Optimizing DAX is the state-of-the-art book on optimizing DAX expressions in Power BI and Analysis Services semantic models.
Learn how to locate performance bottlenecks, read the query plan and performance metrics, rewrite the slower part of an expression, and measure the performance improvements. Read more