Cumulative total of users with activity date

I need want to see how many active users we have over time. I have a field "last_activity_at", if it has a value (not null) they are active. And I want to add the sum total of active dates in the week they fall.

I was able to accomplish this somewhat in beast most, but I think I need to use etl to filter out duplicate weeks...

CASE
WHEN ifnull(`last_activity_at`,0)=0
THEN 'Is null'
ELSE SUM(SUM(1)) OVER (ORDER BY (DATE_FORMAT(`last_activity_at`,'%Y-%m-%d')))
END

2021-01-23 06.22.33 pm.jpg

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Comments

jaeW_at_Onyx

There's a bunch going on here ...

1) why are you building a CASE statement that returns text when your ELSE clause will return a number?

2) if I had to guess you have Date on the axis hence why you're seeing repeated dates. swap it with the math in your order by clause, DATE_FORMAT(`last_activity_at`,'%Y-%m-%d')

3) if you still need a CASE Statement, it has to be executed inside the window function.