New column returns sum only when ID is specific

[Anonymous]

Hello Power BI experts 🙂

I ran into a problem, seems easy, but I can't figure it out. 

I am creating a new column, a simple SUM (from another column), but I only want this sum to appear only on the row with a specific ID.

Heres is an example.

Let's say that I want to SUM a certain column from Table 2, and I only want it to appear in Table 1 when ID =2 

My table 1:

ID   Column I need

1          

2         SUM('Table2'[Column])

3         

4         

Does anyone know how to do this? 

I tried doing a calculate and then filter it to this specific ID but it returns with errors.

Thank you for your help 🙂

[v-lionel-msft · Accepted solution]

Hi @Anonymous ,

You can do like this.

1. Create a column in Table2.

Column = 
CALCULATE(
    SUM(Table2[Value]),
    FILTER(
        Table2,
        Table2[ID] = EARLIER( Table2[ID]) && Table2[ID] = 2
    )
)

2. Create a column in Table 1.

Column = 
LOOKUPVALUE(
    Table2[Column],
    Table2[ID], Table1[ID]
)

Best regards,
Lionel Chen

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[amitchandak]

@Anonymous , try like

if there is a join
new column = sum(RELATED('Table2'[Column]))

wthout using related
new column = sumx(FILTER(table2,table2[Id]=table1[ID] && table2[Id]=2),'Table2'[Column])

You can change the filter condition as per need

[Anonymous]

Hi @Anonymous

You can indeed use the calculate function here.

The Column would look like this:

Column =
VAR CurrentID = 'Table1'[ID]
RETURN
    CALCULATE (
        SUM ( 'table2'[column] ),
        FILTER ( table2, 'table2'[ID] = CurrentID )
    )

Hope it helps,

Kind regards
Joren Venema

Data & Analytics Consultant
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