There is a group of functions in DAX that are referred to as iterators, and from their name, we can infer that these functions iterate tables in the evaluation of a DAX expression. Any DAX function that ends in an “X” is an iterator, such as the “X” aggregators: SUMX, AVERAGEX, MAXX, MINX, COUNTAX. There are also “X” iterating functions that aren’t aggregators such as CONCATENATEX and RANKX. Just to make life even more confusing, there are iterating functions that don’t end in “X” such as FILTER and ADDCOLUMNS. ...
© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022
A. BoxUp and Running with DAX for Power BI https://doi.org/10.1007/978-1-4842-8188-8_55. Iterators
Alison Box1
(1)
Billingshurst, West Sussex, UK
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