Prior month metrics beast mode
Hi,
I have a pivot table card which displays Last month projects, Projects 2 Months ago, Delta Projects.
Below are the Beast mode calculations:
Last Month Projects
COUNT(DISTINCT CASE WHEN YEAR(`Date`) = YEAR(CURRENT_DATE) AND MONTH(`Date`) = MONTH(CURRENT_DATE)-1 THEN `ProjectNo` END)
Projects 2 Months ago
COUNT(DISTINCT CASE WHEN YEAR(`Date`) = YEAR(CURRENT_DATE) AND MONTH(`Date`) = MONTH(CURRENT_DATE)-2 THEN ` ProjectNo` END)
Delta Projects
(COUNT(DISTINCT CASE WHEN YEAR(`Date`) = YEAR(CURRENT_DATE) AND MONTH(`Date`) = MONTH(CURRENT_DATE)-1 THEN `ProjectNo` END))-
(COUNT(DISTINCT CASE WHEN YEAR(`Date`) = YEAR(CURRENT_DATE) AND MONTH(`Date`) = MONTH(CURRENT_DATE)-2 THEN `ProjectNo` END))
Since we entered into a new year the pivot table shows 0 values for the above fields as the beast mode has YEAR(`Date`) = YEAR(CURRENT_DATE), if I remove YEAR(`Date`) = YEAR(CURRENT_DATE), it will select the years right from the beginning regardless of previous year. I want the card to choose previous year(2020), last month even when we are in current year 2021.
Please advise.
Thanks!
Best Answer
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@Khan_Naziya ? i feel like i've suggested to you multiple times to build a date dimension table... you're not gonna love this answer ? build a date dimension table.
What you need is a YearMonth_Lag column that calculates the number of month's lag (0,1,2,3,4,5) from the current date. You calculate that with a Row_Num() Over ( Partition By YearMonth_Num OrderBy End_Of_Month desc)
make sure your window function updates daily.
Then you could simplify your beast mode to
CASE WHEN YearMonth_Lag = 0 -- current month
YearMonth_Lag = 1 = prev month
YearMonth_Lag = 12 = one year ago.
cc @GrantSmith
Jae Wilson
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