Transform selected excel columns to json string in data factory v2

Question

I am having the excel sheet with multiple columns. I need to transform selected column of excel sheet to json string and store in seperate column in excel using Azure Data Factory V2.

In data factory v2 using data flow we can create and update the existing columns using Derived Column Transformation.

I am having below excel file:

With Azure Data Factory data flow, I need to transform the file to below:

Please let me know if this is possible to achieve in Derived Columns data flow transformation or I have to use custom activity to achieve the format.

Answer 1

Yes, Data Flow could make it as a JSON string. But it's not a real JSON object.

You could try bellow expressions:

concat('[{"',Column2,'":',Column3,'}]' )