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I have taken over a Power BI report from someone who has now left (so I can't ask them questions), and I came across the attached query which I am trying to wrap my head around. I want to understand how it works and why "2023" isn't in the table.
I see that it is doing a binary encoding in base64 of that string (why that string?), and then decompressing it (why encode and then decompress?), then returning the results of that json document (why is it a json document?), and then creating a table by parsing that list. The "let _t = ..." I guess is defining the column or something, but I don't really understand any of the syntax in that bit. Overall, why does this work, and how do I get "2023" to appear?
Is it just a matter of that specific string encods and then decompresses into that specific list? And therefore a different string would give a different list?
How would I go about testing all the parts of this DAX individually?
Thank you.
Solved! Go to Solution.
@Loubot3000 That's an Enter Data query and is just kind of how it works. If you want to really understand what is going on, I made a video on it (below). Also, you should be able to edit the data by clicking on the gear icon for the Source step.
@Loubot3000 That's an Enter Data query and is just kind of how it works. If you want to really understand what is going on, I made a video on it (below). Also, you should be able to edit the data by clicking on the gear icon for the Source step.
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