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Kagechiyo's avatar
Kagechiyo
New Member
5 years ago

different DAX output between SSAS vs Import

hello,

 

i would like to make a accumlative / pareto chart by year-month, in clustered chart.

i also make 2 reports :

A - first i make using import data from DB source directly

then

B - i make the report using SSAS from the DB source

 

so i make the DAX as follow :

//--------
accumulate unit=

var currentmon =
SELECTCOLUMNS('VW_FactDetailUnit',"currmonth",'VW_FactDetailUnit'[month])

var sumtabledax =
SUMMARIZE(
ALLSELECTED('VW_FactDetailUnit'),
'VW_PC_FactDetailVIN'[dDate],
"kumakun", SUM('VW_FactDetailUnit'[Qty]))

var cummulativesum =
SUMX(
FILTER(sumtabledax, MONTH('VW_FactDetailUnit'[dDate]) <= currentmon),
[kumakun]
)

return
cummulativesum
//-------------
 
but the result is not the same..
A - the result is OK it can shown correctly.
but
B - is showing error msg as follow :
"The expression refers to multiple columns. Multiple column cannot be converted to a scalar value."
 
is there any step(s) that i missed for the B report?
thank you in advance for your kind attention / time.
 
best regards,

2 Replies

  • amitchandak's avatar
    amitchandak
    Icon for Super User rankSuper User
    5 years ago

    Kagechiyo , Try a measure like

     

    var currentmon =
    maxx(allselected('VW_FactDetailUnit'),'VW_FactDetailUnit'[month])

    var sumtabledax =
    SUMMARIZE(
    ALLSELECTED('VW_FactDetailUnit'),
    'VW_PC_FactDetailVIN'[dDate],
    "kumakun", SUM('VW_FactDetailUnit'[Qty]))

    var cummulativesum =
    SUMX(
    FILTER(sumtabledax, MONTH('VW_FactDetailUnit'[dDate]) <= currentmon),
    [kumakun]
    )

    return
    cummulativesum

  • Anonymous's avatar
    Anonymous
    Not applicable
    5 years ago

    Regarding the use of SUMMARIZE... I encourage you to read this: All the secrets of SUMMARIZE - SQLBI, and then regardnig the use of ALLSELECTED, I encourage you to read this: The definitive guide to ALLSELECTED - SQLBI

     

    By the way, your "currentmon" can't return more than 1 value because you then use it in an expression with "<=" and this requires a scalar. I don't think SELECTCOLUMNS is the right function to use in this context. There are much better ones. For example, SELECTEDVALUE (supported in DirectQuery).