topic Re: Reprt builder expression for calculation based on distinct values in a column in Report Server

Reprt builder expression for calculation based on distinct values in a column

murali5431 — Wed, 12 May 2021 14:00:48 GMT

Hi,

I have a power BI report builder which has duplicated rows (column A) as below. I need to calculate sum of column B based on unique values in column A. Please let me know the report builder expression.

Column A	Column B
PartA	150
PartB	100
PartA	150
PartB	100
PartC	200
PartC	200

I need the expression which would calculate sum of PartA + PartB + PartC = 150+100+200 = 450

Thanks to assist.

Regards,

Muralidhar

Re: Reprt builder expression for calculation based on distinct values in a column

HashamNiaz — Wed, 12 May 2021 15:47:03 GMT

Hi !

Does the values in ColumnB will always be exactly same for repeted ColumnA members. How you want the calculation to work if you have have PartA with 2 distinct values in ColumnB, 150 & 120. What you want to do in this scenrio.

Regards,

Re: Reprt builder expression for calculation based on distinct values in a column

murali5431 — Thu, 13 May 2021 08:57:12 GMT

@HashamNiaz

Values in ColumnB will always be exactly same for repeted ColumnA members, so we can ignore the scenario of columnB having different values for a value in column A.

Thanks for checking!

Regards,

Muralidhar

Re: Reprt builder expression for calculation based on distinct values in a column

HashamNiaz — Thu, 13 May 2021 13:13:42 GMT

Hi !

I would solve this like below;

1) Create a new table using DAX;

Go to Modelling Tab -> New Table, provide following DAX

NewTable = SUMMARIZE(Table, Table[ColumnA], Table[ColumnB])

Table is the name of your table, you can replace it with your table name in the formula.

Now create a measure to sum column B, use following DAX

NewSum = SUM(NewTable[ColumnB])

Hope this will solve your requirement.

Regards,

Hasham

Re: Reprt builder expression for calculation based on distinct values in a column

Anonymous — Fri, 14 May 2021 06:30:37 GMT

@murali5431
A simple measure should do:

Measure = SUMX(SUMMARIZE('Table',[Column A],'Table'[Column B]),[Column B])

And if there are always 2 repeated values, you can also use:

Measure = SUMX(DISTINCT('Table'[Column B]),[Column B])

Paul Zheng _ Community Support Team
If this post helps, please Accept it as the solution to help the other members find it more quickly.

Re: Reprt builder expression for calculation based on distinct values in a column

murali5431 — Fri, 14 May 2021 11:23:37 GMT

@Anonymous It did work when I tried it in the power BI desktop where I have built the dataset. But, when I import this measure to the report builder report to which dataset is connected, it just gives me the first row value. Can you let me know what needs to be tweaked?