DATEDIFF when using Dates in a Column and using the TODAY() Function

[jcox]

So I feel like I've been close to finding a solution for a while, but I've been trying to write a measure that will take todays date from the TODAY() function, and subtract the date from a column already set up in a query in my data set and the end result I want to see is the amount of days in between. What I'm trying to find is essentially TODAY() - [Last Sales Stage Date] = Days between. I can't write it like that though so I was wondering if anyone has had any luck. Thanks!

-Jonathon

[Greg_Deckler]

This will work:

(TODAY()-[Date].[Date])*1.

This will avoid errors you can get with DATEDIFF depending upon starting date being larger than end date. 

[Sean]

@Greg_Deckler's solution also works but again NOTE it has to be a COLUMN not a Measure! (you say you are trying to write a Measure)

[Greg_Deckler]

Sort of, you can actually write it as a Measure if you use an aggregation function like this:

Measure 2 = (TODAY() - MAX([Date].[Date])) *1.

That is a valid measure formula believe it or not.

[Sean]

@Greg_Deckler Seems that was your 2,000th post - Congratulations!

Yes with MIN or MAX would work as Measure!

[Sean · Accepted solution]

@jcox You have to create a Calculated COLUMN and your formula would look something like this...

Day Between COLUMN = DATEDIFF ( [Last Sales Stage Date], today(), DAY )

http://www.sqlbi.com/articles/calculated-columns-and-measures-in-dax/

[jcox]

This worked great thank you for such a quick response.