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Transforming Arrays in Azure Data Factory

Mark Kromer shows off a few functions in Azure Data Factory to modify data in arrays:

The first transformation function is map() and allows you to apply data flow scalar functions as the 2nd parameter to the map() function. In my case, I use upper() to uppercase every element in my string array: map(columnNames(),upper(#item))

Read on for more iteration and aggregation functions akin to map, reduce, and filter.