Multiple Rows of duplicated data, compare date of each row with max date

[silverdale9999]

I am sure there is an easy way to do this, but I've been looking at the data for what feels like 4 years and my head is spinning!

I have a table of 'issues', refreshed from excel files which are refreshed on a monthly basis.  If the issue still exists it will be added as a new row in the table.  As part of the import process, I'm grabbing the date from the filename and storing it in a column called 'FileDate'.

In Powerquery, the main issue I have is that I can't figure out how to get the max date from the FileDate column, which will allow me to create a new column called 'status' with 2 values:

Open - FileDate = MaxFileDate

Resolved - FileDate not equal to MaxFileDate

As the example here:  Max File Date is 01/03/2021.  ABCDE has this date, so is open.  FGHJY does not have this date so is resolved.

Issue Ref	FileDate	Status
ABCDE	01/03/2021	Open
ABCDE	01/02/2021	Open
ABCDE	01/01/2021	Open
ABCDE	01/12/2020	Open
FGHJY	01/02/2021	Resolved
FGHJY	01/01/2021	Resolved
FGHJY	01/12/2020	Resolved

Any ideas?

[v-yuaj-msft · Accepted solution]

Hi @silverdale9999 ,

Based on your description, you can create a calculated column as follows.

Column = 

var x1=CALCULATE(MAX('Table'[FileDate]),ALL())

var x2=MAXX(FILTER(ALL('Table'),[Issue Ref]=EARLIER('Table'[Issue Ref])),[FileDate])

return

IF(x2=x1,"Open","Resolved")

Result:

Hope that's what you were looking for.

Best Regards,

Yuna

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

[amitchandak]

@silverdale9999 , Try with a date table

Open = CALCULATE(Count(Table[FileDate]),DATESMTD('Date'[Date]), Filter(Table, Table[Status] = "Open" ))

resolved = CALCULATE(Count(Table[FileDate]),DATESMTD('Date'[Date]), Filter(Table, Table[Status] = "Resolved" ))

+ if(isblank([Open]),1,blank())

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