Running Total with Magic ETL (not MySQL)

I've made this short video to explain what I'm trying to do:

Best Answer

  • GrantSmith
    GrantSmith 🥷
    Answer ✓

    Hi @swagner 


    You can use a Rank & Window Tile. Using SUM on your number field with an unbounded for the first setting and 0 for the last setting. Order by your date field and now partitions will get you a rolling sum / running total.


    Screen Shot 2020-12-09 at 11.09.04 AM.png


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  • Thanks Grant!

  • @swagner  in SQL parlance that's called a cumulative sum.


    Which I mention because eventually you'll want to use a PARTITON BY which will reset your counter based on an Item, Customer or Year.

    Jae Wilson
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