Topic: DAX
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Almost a year ago, we announced the release of three sections (core concepts, formula engine, and VertiPaq); in November 2023, we released the DirectQuery over SQL section; now, in April 2024, we release the last section of Optimizing DAX about… Read more
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At SQLBI, Alberto Ferrari and I spend most of our time sharing our knowledge and expertise in DAX. We have been doing this for years, navigating through conferences, workshops, and videos, encountering many individuals – from eager beginners to seasoned… Read more
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This month we published a second draft of the Window functions in DAX whitepaper for the SQLBI+ subscribers. After the first draft we published in January 2023, we added new sections and updated others. We completely rewrote the “apply semantics”… Read more
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This month we have a new video course and whitepaper for SQLBI+ subscribers: Inside Calculation Groups is available! This course is a deep dive into calculation groups in DAX. Although you might already be familiar with calculation groups, it is… Read more
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At the end of March, we released the second update of SQLBI+ with a new session about different types of many-to-many relationships in DAX. The goal is to explain the difference between the many-to-many cardinality relationship available in Power BI… Read more
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After the SQLBI+ launch in November 2022, we released the first update with additional content: two sessions about Time Intelligence and one whitepaper about the new DAX window functions. This is much more than the single Time Intelligence session we… Read more
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Here we are, at the end of another year, to see what happened in the DAX world. Read more
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We recently updated SUMMARIZECOLUMNS on DAX Guide by adding an example that clarifies the difference between a filter applied to SUMMARIZECOLUMNS and a filter applied to CALCULATETABLE. Most of the times, you can move a filter from a SUMMARIZECOLUMNS argument… Read more
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The Whiteboard is a new series on the SQLBI YouTube channel where I use a whiteboard to describe abstract DAX and Tabular concepts in a more interactive way. I usually represent these concepts by drawing on a whiteboard in our… Read more
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If you try to use SELECTEDVALUE on the visible column of the table generated by the Fields Parameters feature in Power BI, you get the following error: Calculation error in measure ‘Sales'[Selection]: Column [Parameter] is part of composite key, but… Read more