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SQLBI+ updates in May 2024

In 2023, we released the first draft of the Window functions in DAX whitepaper as part of SQLBI+. Since then, we have released a few updates and are now glad to announce the availability of the related 3-hour video course…  Read more

DAX Patterns

Time patterns

This post introduces the four time-related calculations patterns presented in this website The goal here is to help you choose the right pattern based on your specific needs Indeed when it comes to time-related calculations the choice of the pattern…  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