DAX Problem: Previous Year, no Date Table for time intelligence

[PedroReis]

I want to do a calculated measure which shows me the total sales for December of the previous year.

I do not have a date recognized table to use, so i want to use a numeric calculation for the year. (because of index optimization reasons)

Can someone help me with the DAX for this measure?

Total Sales DEC LY = 
CALCULATE([Total Sales],
DIM_YEAR[Year]= .......
DIM_MONTH[Month]=12
)

[parry2k]

@PedroReis not sure why you don't want date dimension in your model, anyhow try this.

Total Sales DEC LY = 
CALCULATE([Total Sales],
DIM_YEAR[Year]= DIM_YEAR[YEAR] - 1
DIM_MONTH[Month]=12
)

[PedroReis]

Thanks for the suggestions. I had tested something like that, but the something argument for the DIM[Year] = someting cannot be a column reference, has to be a measure or a variable.

[PedroReis · Accepted solution]

Just found the way of doing it; I did not know I needed to specifically use a variable

Total Sales DEC LY = 
VAR LY = LASTNONBLANK(DIM_YEAR[Year],1)-1
Return  
CALCULATE([Total Sales],
DIM_YEAR[Year]=LY,
DIM_MONTH[Month]=12
)

. 

[SpaceJunkie]

This seems like a calculated column; Did you run it as a Measure?