Hi all,
I have a task where I need to compare two sets of data, for example, purchases from the same customers on different dates. A example data file would be this:
Customer A, 7/2/2024, Apple, Pear
Customer A, 7/3/2024, Apple, Banana, Pear
My goal is to compare the two lists for the same customer and spot the difference (Banana in this case). What would be a good way to do it? Thanks for any suggestions!