DAX Calculation for Dates

[Anonymous]

Hi, I have a datasource that updates at a regular basis, 

is there a way to categorize them, for either "Current" or "Previous" then the rest will be NULL.

Current means Latest update

Previous means previous update

The rest will show null as we only want to show current update and previous update

Goal (Tableau Reference):

Goal:

LAST_UPDATE_DATE	DAX calc
6/15/20201 2:14:34 AM	null
6/15/20201 9:42:25 AM	Previous
6/15/20201 6:34:25 PM	Current

[v-stephen-msft · Accepted solution]

Hi @Anonymous ,

You can create the following measure

Week = var _rank=RANKX(ALL('Table'),CALCULATE(MAX('Table'[Last Update Date])),,DESC,Dense)
return IF(_rank=1,"Current Week",IF(_rank=2,"Previous Week","Null"))

If you only want to keep three rows, write a metric to keep the first three rows.

Measure = var _rank=RANKX(ALL('Table'),CALCULATE(MAX('Table'[Last Update Date])),,DESC,Dense)
return IF(_rank<=3,1)

Best Regards,

Stephen Tao

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[Anonymous]

I found a solution that might help you.

I changed the datatype for the date column to date and I added a custom column with an if statement:

IF('Table'[Date]=max('Table'[Date]),"CURRENT","OLDER")

I get the following results in a table:

Hope it helps.

[Anonymous]

Hi, thanks for your suggestion.

However, i only want to have 1 older and 1 current, the history should be null.

It's gonna update weekly, this is an example