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Syndicate_Admin's avatar
Syndicate_Admin
Administrator
4 years ago
Solved

convertir SQL(case) a Dax

Hola chicos, Tengo esta consulta en sql que estoy tratando de hacer una medida en powerbi pero tengo problemas, Consulta SQL: SELECCIONE COUNT (DISTINCT(ID)) - COUNT( DISTINCT (caso cuan...
  • Syndicate_Admin's avatar
    Syndicate_Admin
    4 years ago

    @sun-sboyanapall ¿Puedes probar esta medida?

    Measure =
CALCULATE (
    DISTINCTCOUNT ( tbl[ID] ),
    VAR _base =
        FILTER (
            tbl,
            tbl[TransactionDate] <> BLANK ()
                && tbl[ConvertedDate] <> BLANK ()
                && tbl[Date_of_Last_Status_Change__c] <> BLANK ()
        )
    VAR _left =
        FILTER ( tbl, tbl[ID] <> BLANK () )
    VAR _join =
        EXCEPT (
            _left,
            FILTER (
                _base,
                MONTH ( COALESCE ( tbl[ConvertedDate], tbl[Date_of_Last_Status_Change__c] ) )
                    <> MONTH ( tbl[TransactionDate] )
                    && YEAR ( COALESCE ( tbl[ConvertedDate], tbl[Date_of_Last_Status_Change__c] ) )
                        <> YEAR ( tbl[TransactionDate] )
            )
        )
    RETURN
        _join
)

Syndicate_Admin's avatar
Syndicate_Admin
Administrator
4 years ago

@sun-sboyanapall bien hecho.

Una regla general para recordar siempre con DAX; si puede crear una medida, no cree una columna.

Syndicate_Admin's avatar
Syndicate_Admin
Administrator
4 years ago

¿Puede explicar su medida también, por favor, en su forma actual es difícil de entender? @smpa01

  • Syndicate_Admin's avatar
    Syndicate_Admin
    Administrator
    4 years ago

    @sun-sboyanapall 

    Measure = 
    VAR _base =
        FILTER (    //#1- returns a table that has no tbl[ID]or tbl[ConvertedDate]or tbl[Date_of_Last_Status_Change__c] as BLANK
            tbl,
            tbl[TransactionDate] <> BLANK ()
                && tbl[ConvertedDate] <> BLANK ()
                && tbl[Date_of_Last_Status_Change__c] <> BLANK ()
        )
    VAR _left =
        FILTER ( tbl, tbl[ID] <> BLANK () ) //#2- returns a table that has no tbl[ID] as BLANK
    VAR _join = 
        EXCEPT ( // #4 - this returns a left anti joined tables between 2 and 3, i.e. return everything from 2 that are not in 3
            _left,
            FILTER ( // #3- previously created base table is further filteres with SQL IS NULL conditions
                _base,
                MONTH ( COALESCE ( tbl[ConvertedDate], tbl[Date_of_Last_Status_Change__c] ) )
                    <> MONTH ( tbl[TransactionDate] )
                    && YEAR ( COALESCE ( tbl[ConvertedDate], tbl[Date_of_Last_Status_Change__c] ) )
                        <> YEAR ( tbl[TransactionDate] )
            )
        )
RETURN CALCULATE ( //5. DISTINCTCOUNT is performed on the above derived table
    DISTINCTCOUNT ( tbl[ID] ),_join)
    • Syndicate_Admin's avatar
      Syndicate_Admin
      Administrator
      4 years ago

      Eso está claro, gracias señor