Forum Discussion

Anonymous's avatar
Anonymous
Not applicable
3 years ago

Improving Dax Query Performance

Hi all, I am looking to improve query performance. The report measures employee activity in a software, showing how many times someone "posted". I have a few lengthy measures in this report which ...
"DAX"
Query is too complex
wdx223_Daniel's avatar
wdx223_Daniel
Community Champion
3 years ago

it seams more efficient to change the measure of Unproductive Time as this

Unproductive Time2 =
VAR _tbl =
    SUMMARIZE ( 'Audit', Audit[code], Audit[master_key], Audit[trans_date] )
VAR UnproductiveMinutes =
    SUMX (
        _tbl,
        VAR _c = Audit[trans_date]
        VAR _p =
            MAXX ( OFFSET ( -1, _tbl, ORDERBY ( Audit[trans_date] ) ), Audit[trans_date] )
        VAR _min = ( _c - _p ) * 1440
        RETURN
            IF ( _min >= 10 && FORMAT ( _c, "yyyymmdd" ) = FORMAT ( _p, "yyyymmdd" ), _min )
    )
VAR hourNo =
    INT ( MOD ( UnproductiveMinutes, 1440 ) / 60 )
VAR minuteNO =
    MOD ( MOD ( UnproductiveMinutes, 1440 ), 60 )
VAR secondNo =
    INT ( ( UnproductiveMinutes - INT ( UnproductiveMinutes ) ) * 60 )
RETURN
    IF (
        NOT ISBLANK ( UnproductiveMinutes ),
        FORMAT ( hourNo, "#0" ) & ":"
            & FORMAT ( minuteNO, "#00" ) & ":"
            & FORMAT ( secondNo, "#00" )
    )
  • Anonymous's avatar
    Anonymous
    Not applicable
    3 years ago

    Thank you for this suggestion! It appears to slightly improve performance. Is there any way around a lengthy waiting process just due to the complexity of the measure?