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Antipattern: DAX Measures Never Returning Blank

Chris Webb explains the value of BLANK:

Following on from my earlier post on the Query Memory Limit in Power BI, and as companion to last week’s post on how a DAX antipattern using Calculate() and Filter() can lead to excessive memory consumption by queries (and therefore lead to you hitting the Query Memory Limit), in this post I want to look at the effects of another DAX antipattern on performance and memory usage: measures that can never return a blank value.

Read on to see how much of a difference using DAX to fill a grid with 0’s can make.

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