Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Power BI is turning 10! Let’s celebrate together with dataviz contests, interactive sessions, and giveaways. Register now.

Reply
Rsquare
Frequent Visitor

DAX measure: ID from MIN date - historical data in live connection

Hello all,

 

This is a follow-up question from my last post:  DAX measure: MIN date for historical data in live connection 

I have a live connection to a SQL table “Data” with historical data.

 

Example Data:

ID

Status

Start

End

Changed

1

A

2022-05-13

 

2022-05-13

1

B

2022-05-13

 

2022-05-14

2

A

2022-05-15

 

2022-05-15

3

A

2022-05-15

 

2022-05-15

2

C

2022-05-15

2022-05-16

2022-05-16

3

B

2022-05-15

 

2022-05-16

3

B

2022-05-15

 

2022-05-17

3

C

2022-05-15

2022-05-18

2022-05-18

4

A

2022-05-15

 

2022-05-15

4

A

2022-05-15

 

2022-05-16

5

A

2022-05-15

 

2022-05-16

6

A

2022-05-16

 

2022-05-16

 

I get the MIN Start-date with Status “A” if the corresponding ID had no other Status since then according to the following formula (all thanks to Jihwan_Kim):

 

VAR _IDunderA =

    SUMMARIZE ( FILTER ( Data, Data[Status] = "A" ), Data[ID] )

VAR _IDunderothers =

    SUMMARIZE ( FILTER ( Data, Data[Status] <> "A" ), Data[ID] )

VAR _IDonlyA =

    EXCEPT ( _IDunderA, _IDunderothers )

VAR _newtable =

    CALCULATETABLE ( Data, TREATAS ( _IDonlyA, Data[ID] ) )

RETURN

    MINX ( _newtable, Data[Start] )

 

Result for example data: 2022-05-15

 

What to achieve:

Now, I would like to get the corresponding ID or IDs to the MIN Start-date respectively.

 

Expected Result:

ID 4

ID 5

 

I tried a combination of FILTER and SELECTEDVALUE but it did not work so far.

 

VAR _IDunderA =

    SUMMARIZE ( FILTER ( Data, Data[Status] = "A" ), Data[ID] )

VAR _IDunderothers =

    SUMMARIZE ( FILTER ( Data, Data[Status] <> "A" ), Data[ID] )

VAR _IDonlyA =

    EXCEPT ( _IDunderA, _IDunderothers )

VAR _newtable =

    CALCULATETABLE ( Data, TREATAS ( _IDonlyA, Data[ID] ) )

RETURN

    CALCULATE(SELECTEDVALUE(Data[ID]), FILTER(Data,Data[Start]=MINX( _newtable, Data[Start])))

 

Any suggestions?

Thanks!

1 ACCEPTED SOLUTION
johnt75
Super User
Super User

Try

First ID =
VAR _IDunderA =
    SUMMARIZE ( FILTER ( Data, Data[Status] = "A" ), Data[ID] )
VAR _IDunderothers =
    SUMMARIZE ( FILTER ( Data, Data[Status] <> "A" ), Data[ID] )
VAR _IDonlyA =
    EXCEPT ( _IDunderA, _IDunderothers )
VAR _newtable =
    CALCULATETABLE ( Data, TREATAS ( _IDonlyA, Data[ID] ) )
RETURN
    MINX ( TOPN ( 1, _newtable, Data[Start], ASC ), Data[ID] )

View solution in original post

1 REPLY 1
johnt75
Super User
Super User

Try

First ID =
VAR _IDunderA =
    SUMMARIZE ( FILTER ( Data, Data[Status] = "A" ), Data[ID] )
VAR _IDunderothers =
    SUMMARIZE ( FILTER ( Data, Data[Status] <> "A" ), Data[ID] )
VAR _IDonlyA =
    EXCEPT ( _IDunderA, _IDunderothers )
VAR _newtable =
    CALCULATETABLE ( Data, TREATAS ( _IDonlyA, Data[ID] ) )
RETURN
    MINX ( TOPN ( 1, _newtable, Data[Start], ASC ), Data[ID] )

Helpful resources

Announcements
Join our Fabric User Panel

Join our Fabric User Panel

This is your chance to engage directly with the engineering team behind Fabric and Power BI. Share your experiences and shape the future.

June 2025 Power BI Update Carousel

Power BI Monthly Update - June 2025

Check out the June 2025 Power BI update to learn about new features.

June 2025 community update carousel

Fabric Community Update - June 2025

Find out what's new and trending in the Fabric community.