Simplifying dax queries that caused a lot of performance issue

[Anonymous]

Hi All, My PBI reports are working just fine but the problem is, it's having performance issue in my actual pbi, loading takes too much of time. But in my mockup pbi it's working fine. i think this is due to long queries of the dax measures. 

Two measure that's needing simplifications

1. 

Status expected measure: =

VAR _latestdate =

    CALCULATE (

        MAX ( Student[Application Date] ),

        ALLEXCEPT ( Student, Student[Student ID] )

    )

VAR _maxstatuskey =

    MAXX (

        FILTER (

            ALL ( Student ),

            Student[Student ID] = MAX ( Student[Student ID] )

                && Student[Application Date] = _latestdate

        ),

        Student[Application Status Key]

    )

RETURN

    IF (

        HASONEVALUE ( Student[Student ID] ),

        CALCULATETABLE (

            VALUES ( 'Status'[Status] ),

            'Status'[Application Status Key] = _maxstatuskey

        )

    )

2. 

Application date measure: =

VAR _latestdate =

    CALCULATE (

        MAX ( Student[Application Date] ),

        ALLEXCEPT ( Student, Student[Student ID] )

    )

RETURN

IF( HASONEVALUE(Student[Student ID]),

    _latestdate)

Mockup result which is correct:

pbi file 

I need to apply the same logic from the mockup pbi to my actual pbi and it's having performance issues, and i believe this is due to the long dax queries.Hoping that someone can guide me on this, thank you!

[Jihwan_Kim · Accepted solution]

Hi,

please try the below two measures whether those suit your dataset.

Application date measure: = 
VAR _latestdate =
    MAX ( Student[Application Date] )
RETURN
    IF ( HASONEVALUE ( Student[Student ID] ), _latestdate )

Status expected measure: = 
VAR _maxdate = [Application date measure:]
VAR _maxstatuskey =
    CALCULATE (
        MAX ( Student[Application Status Key] ),
        Student[Application Date] = _maxdate
    )
RETURN
    IF (
        HASONEVALUE ( Student[Student ID] ),
        CALCULATETABLE (
            VALUES ( 'Status'[Status] ),
            'Status'[Application Status Key] = _maxstatuskey
        )
    )

[Anonymous]

Thank you Jihwan for the help!

[amitchandak]

@Anonymous , seem like you need to get the latest status. refer if my code in the blog can help

https://amitchandak.medium.com/power-bi-get-the-last-latest-value-of-a-category-d0cf2fcf92d0

[Anonymous]

Thank you for the guide sir