Apr 25, 2024 · The SUMX function takes as its first argument a table, or an expression that returns a table. The second argument is a column that contains the numbers you want to sum, or an expression that evaluates to a column.

Apr 9, 2025 · Returns the sum of an expression evaluated for each row in a table.

Oct 28, 2019 · SUMX is an iteration function in Power BI that works on a row-by-row calculation per the given expression or equation. This function considers each row at a time and applies the calculation. It will not concentrate on the entire column, unlike the SUM function.

Jan 31, 2024 · The SUMX function in Power BI is a powerful DAX function used to calculate the sum of an expression that is calculated for each row in a table. This function is important because it allows for more complex calculations than a simple sum.

Aug 29, 2019 · SUMX is the sum of an expression, the X at the end of this function is for eXpression. This function gives you the sum of any expression. Here is the way to use it: SumX (<table name>,<expression>)

Dec 19, 2024 · Let’s replicate the functionality of the calculated column using the SUMX function: Sales USD = SUMX(fSales, fSales[Amount] / RELATED('DCurrency(F)'[EUR/USD])) Adding this measure to a table yields the same results as the calculated column.

The SUMX function in Power BI is a versatile DAX (Data Analysis Expressions) function that calculates the sum of an expression evaluated row by row over a table. Unlike the simpler SUM function, which works on a single column, SUMX allows for dynamic calculations by evaluating a formula or expression for each row and then summing up the results.

Mar 21, 2025 · Here is SUMX over the same data. 15 ms, same scan operation, same xm_SQL output on the right. Any DAX within 4ms should be considered to have functionally identical performance, according to SQLBI. Here are the physical and logical execution plans for SUM: Here are the logical and physical plans for SUMX. Identical. Why the confusion?

Feb 19, 2025 · One such built-in Power BI mathematical DAX function that returns the sum of expressions from a table is called DAX SUMX. The iteration function SUMX Power BI performs a row-by-row calculation by the provided expression. To understand the foundation, let’s start by exploring what SUMX is and how it operates in Power BI.

Jun 10, 2023 · The SUMX function will define a table based on the first parameter. Then the SUMX function will calculate an expression from the second parameter for each row in that table.