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SQLBI+ updates in December 2024

We released more content in SQLBI+ with two new sessions: Introducing Visual Calculations in Power BI: This two-hour session introduces the Visual Calculations feature in Power BI, which is still in preview. We plan to update the “Understanding Visual Calculations…  Read more

DAX Patterns

Parent-child hierarchies

Parent-child hierarchies are often used to represent charts of accounts stores salespersons and such Parent-child hierarchies have a peculiar way of storing the hierarchy in the sense that they have a variable depth In this pattern we show how to…  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