MAX date for an ID with repeating dates

[ivancans]

Hello,

I would like to get your help in the following matter. I have ID's with multiple dates. I need to return latest date for each of the ID's and compare the result with the specific row. If the result matches, I will use it as a filter, to make my inital table unique which will allow me to use it as a lookup table when I will create relationships later. Example of the problem:

The problem is that I am completely new to so called M language and can't really figure out how to solve this with M formulas/sytanx.

[Zubair_Muhammad]

@ivancans

You could also use DAX calculated column

Max Date =
CALCULATE (
    MAX ( Table1[Date Hour and Minutes] ),
    ALLEXCEPT ( Table1, Table1[Application ID] )
)

[ivancans]

Thanks @Zubair_Muhammad but I thought that it is better to do it in query mode because it is somehow less hardware demanding procedure. Am I wrong on this one?

[ivancans]

Also, how can I filter out ture ones in data view so that the table becomes uniqe in relationship view. I did filter out the value but I still couldn't create relationship. See screens attached.  

[Zubair_Muhammad · Accepted solution]

@ivancans

Sorry I was out of office

In Query Editor, you can use Group By Function to get the Max Dates for each ID

[cperazza]

Hi @Zubair_Muhammad 

What if my dataset has more than 1 column apart from the ID (Group By), and I want to return the whole row? Is it possible?

Thank you!

[Anonymous]

Brilliant solution for this scenario!

Thanks,

Jeroen

[ivancans]

Thank you @Zubair_Muhammad ! I actually stumbled upon this solution half an hour ago, but nontheless this seems to be the right solution!