Dax return column. The ColumnName argument must be a column.
Dax return column Nov 26, 2025 · Returns the largest value in a column, or the larger value between two scalar expressions. Apr 30, 2020 · DAX: Return distinct column values based on other conditions Asked 5 years, 7 months ago Modified 5 years, 7 months ago Viewed 3k times Apr 25, 2024 · The formula returns the logical value TRUE when the value in the column, 'InternetSales_USD' [SalesAmount_USD], is greater than 200000. In the latter case, the IF function will implicitly convert data types to accommodate both values. So it's possible that the same column name is used multiple times in your model—providing they belong to different tables. Apr 25, 2024 · Applies to: Calculated column Calculated table Measure Visual calculation Returns a table with a single row containing values that result from the expressions given to each column. This function takes a list of columns, followed by an optional list of table expressions to use as filters, followed by an optional list of measures/expressions. However I just want to get the week column from it, how can I do that? I was able to apply the filter like this. This function is useful for clearing filters and creating calculations on all the rows in a table. Anyway - this is what I want to achieve, and apparently my skills are not sufficient to figure out the solution. The ColumnName argument must be a column. Remarks The GroupBy_ColumnName must be either in table or in a related table to Table. Imagine there are 50 of these columns and depending on the filter settings, some columns may return lots of values, while other columns may only display a few (or even none). Name of column or measure passed as argument. Thanks to context transition, using a measure in the filter expression it is possible to filter a table based on a dynamic calculation involving other rows and/or tables. In my head I want to to something like this: Nov 26, 2025 · NAMEOF ( <Value> ) Return values Scalar A single string value. Oct 20, 2023 · Table manipulation functions These functions return a table or manipulate existing tables. Apr 18, 2019 · Hi, I'm having trouble with this one. Feb 4, 2022 · Lets say I have a date table which contains many fields. Oct 20, 2023 · You specify the column that contains the data that you want, and the function follows an existing many-to-one relationship to fetch the value from the specified column in the related table. Only rows for which at least one of the supplied expressions return a non-blank value are included in the table returned. Jan 26, 2023 · I am very new to DAX and Power BI. Apr 25, 2024 · The IF function can return a variant data type if value_if_true and value_if_false are of different data types, but the function attempts to return a single data type if both value_if_true and value_if_false are of numeric data types. In general, DAX will not force using a fully qualified Hi Community, I need help in writing a DAX for retrieving a value from another coumn based on a condition. Note, this is my current Nov 26, 2025 · Returns all the rows except blank row in a table, or all the values in a column, ignoring any filters that might have been applied. Nov 26, 2025 · Returns all the rows in a table, or all the values in a column, ignoring any filters that might have been applied. For example, the formula IF(<condition>, TRUE(), 0) returns Nov 18, 2018 · Hi all, If we define a variable as a table, can we later refer to the columns in that variable? For instance, we have the following code: VAR TableVar = SUMMARIZECOLUMNS ( 'Product'[ProductKey], 'Product'[Color] ) RETURN COUNTROWS(CALCULATETABLE ( TableVar, TableVar[ProductKey] = 1 )) wh Nov 26, 2025 · Returns all the rows in a table, or all the values in a column, ignoring any filters that might have been applied inside the query, but keeping filters that come from outside. For best practices when using VAR, see Use variables to improve your DAX formulas. Dec 7, 2022 · Hi I have created a variable in a DAX formula which returns a TABLE. Which, however, will be more complicated for M language beginners in Power Query. COLUMNS() This DAX query returns a table with all of the columns of this DAX function. Last update: Nov 26, 2025 » Contribute » Show contributors Jul 15, 2025 · Applies to: Calculated column Calculated table Measure Visual calculation Used in visual calculations only. Measure to return a value (from a column) based on another measure 12-16-2021 06:30 PM Hi everyone, I need help with this measure; I have a column in Query1 [StartDate] table. Dec 21, 2020 · This article describes different techniques to retrieve multiple values from a lookup table in DAX, improving code readability and performance. But here today has many fields, while I just want to return the week. Nov 26, 2025 · A table with the selected columns for the GroupBy_ColumnName arguments and the summarized columns designed by the name arguments. There are a Feb 22, 2024 · Select_Column = VAR SelectedColumn = SELECTEDVALUE(Slicer_Table[Slicer_Options]) RETURN SWITCH( SelectedColumn, 1, Data_Table[Column_1], 2, Data_Table[Column_2] ) However, this doesn't work. Even though this function is commonly used for dates, it can be applied to a column of any data type. Syntax SELECTCOLUMNS (<Table>, <Name>, <Expression>, <Name>, …) Parameters Table: Any DAX expression that returns a table. For every combination of existing values for these columns in INDEX’s parent context, INDEX is evaluated and a row is returned. Mar 17, 2025 · EVALUATE INFO. Ignores logical values. Mar 27, 2019 · Hi! I'm just curious how does DAX execute VAR/ RETURN lines? Will it execute/ evaluate all the VARs first then RETURN values based on the VARs? or will it run RETURN first then check which VARs are necessary then evaluate only those VARs? For example I have a measure with the following lines belo Jul 15, 2025 · Example 1 Given a table that summarizes the total sales for each product category and month, the following DAX query adds a column with the total sales in the last 6 months: Apr 25, 2024 · For best practices when using FILTER, see Avoid using FILTER as a filter argument. No matter what the value of ' SelectedColumn ' Nothing is returned by the SWITCH statement. Apr 30, 2020 · DAX: Return distinct column values based on other conditions Asked 5 years, 7 months ago Modified 5 years, 7 months ago Viewed 3k times Oct 20, 2023 · Applies to: Calculated column Calculated table Measure Visual calculation Returns all the rows in a table, or all the values in a column, ignoring any filters that might have been applied. DAX tries to convert the table to a scalar value, and it fails if there are multiple rows. If I replace ' SelectedColumn ' with a constant value e. I want to extract a column from a table variable created using SUMMARIZECOLUMNS and then calculate the median of the values in that column. Strings are compared according to alphabetical order. The contents of these measures . The filtering functions let you manipulate data context to create dynamic calculations. Jan 28, 2021 · If Column A equals X, then return value from Column B; If Column B is blank, return "Text" 01-27-2021 08:23 PM I have a table, "PlannerTaskInformation", in BI that pulls project data from Microsoft Planner. If that Column B contains an X, then I would want it to return a value that would equal column A * -1. , Select_Column = VAR SelectedColumn = SELECTEDVALUE Jan 28, 2021 · If Column A equals X, then return value from Column B; If Column B is blank, return "Text" 01-27-2021 08:23 PM I have a table, "PlannerTaskInformation", in BI that pulls project data from Microsoft Planner. There's one more rule: a column name cannot have the same name as a measure name or hierarchy name that exists in the same table. Nov 26, 2025 · A table expression that returns a single column. Measures and calculated column DAX formula's return a scalar value, that is just a single value. , Select_Column = VAR SelectedColumn = SELECTEDVALUE Jan 26, 2025 · These are DAX formulas. I have tried a combination of CALCULATE, MAX, FILTER, EARLIER, but am struggling to get the desired output, as seen below. Example: Nov 26, 2025 · Returns a list of all columns in the current model with columns matching the schema rowset for column objects. SUMMARIZE should not be used to add columns. Apr 25, 2024 · For best practices when using FILTER, see Avoid using FILTER as a filter argument. In my example, I created 11 measures that return a mixture of values. The result table includes only values that exist in the ColumnName column. I don't necessarily want the outputs in a table, but rather in a measure because I want to use it in a calculation. I tried to d Jan 16, 2025 · INDEX will first determine all partitionBy and matchBy columns that have no corresponding outer column. For example in the following dataset, for P_id =3, I want to compare the corresponding addres_id (567) with any existing address ids, if a match is found populate address column with its co Nov 16, 2021 · Keep in mind that DAX measures can usually return only scalar (single) value, and can't return multiple values. I've got the following that returns the table: EVALUATE VAR MedianTable = SUMMARIZECOLUMNS( Order_Taken_By[USER May 19, 2025 · Filter functions The filter and value functions in DAX are some of the most complex and powerful, and differ greatly from Excel functions. » 2 related articles Examples Try it Copy Nov 26, 2025 · IF returns a scalar value, it cannot be used to return a table. Dec 20, 2022 · To return just the "Project" column from the table you have defined in your DAX code, you can use the SELECTCOLUMNS function to create a new table that contains only the columns you want to include. I'm trying to create a measure that returns the value of the TaskCompletedDate column, if the Tasks column equals "On Hold". g. Jan 22, 2019 · DAX - Retrieve a value in one column based on MAX in another column 01-22-2019 04:14 AM Hi, First post and I actually got problems even formulating the subject. A Boolean expression that defines a single-column. I want to create a new column that is a measure that would return the value of lets say column A if Column B is blank. Remarks FILTER can filter rows from a table by using any expression valid in the row context. If a relationship does not exist, you must create a relationship. How would I write this in DAX. Nov 26, 2025 · A table containing only the filtered rows. The easiest way to generate a query using columns from multiple tables is to use the SUMMARIZECOLUMNS function. Mar 17, 2025 · Learn more about: DAX function referenceThe DAX function reference provides detailed information including syntax, parameters, return values, and examples for each of the over 250 functions used in Data Analysis Expression (DAX) formulas. The only exception is when you use DAX to create new tables for your data model (similar to SQL use for queries or for data definitions). As an alternative, use SUMMARIZECOLUMNS or ADDCOLUMNS / SUMMARIZE. Use COUNTROWS instead of COUNT in DAX This function is not supported for use in DirectQuery mode when used in calculated columns or row-level security (RLS) rules. Apr 25, 2024 · If the columns (or tables) aren't in the filter context, then new filters will be added to the filter context to evaluate the expression. I need that measure to return the Ref which relates to the first start date. Jan 26, 2025 · These are DAX formulas. Oct 20, 2023 · Example 2 In this example, the following calculated column defined in the Sales table uses the LOOKUPVALUE function to return channel values from the Sales Order table. If the columns (or tables) are already in the filter context, the existing filters will be overwritten by the new filters to evaluate the CALCULATETABLE expression. This blog will introduce you how to get the value in a column based on condition of another column in Power Query. Jun 12, 2021 · Dax Measure to return a single value from a column when using Min function on a different column 06-12-2021 02:43 PM Hi I need to create a measure (and it has to be a measure, not a column, due wider reports/ calculations/ interdependencies). Oct 20, 2023 · Columns in table variables cannot be referenced via TableName [ColumnName] syntax. » 9 related articles » 1 related function Examples Filter the customers in Europe. Name: The name given to the column, enclosed in double quotes. Scenario: In Power BI we can easily get a value with a specific condition by DAX. Sep 20, 2022 · A column is a table-level object, and column names must be unique within a table. Nov 26, 2025 · Returns a one column table that contains the distinct (unique) values in a column, for a column argument. This can be used with other columns to show that value per each value in this column too, which is showing that DAX formula "grouped by" the column's values. Jan 28, 2020 · Each column is based on a different measure, and will return a value depending on the product from the left-hand column. Dec 13, 2024 · The returned table has one column for each pair of Name, Expression arguments, and each expression is evaluated in the context of a row from the specified Table argument. Aug 7, 2022 · RETURN DAX Statement The RETURN keyword consumes variables defined in previous VAR statements. To get better advice, consider rewriting your question to explain what you are trying to accomplish. Or multiple columns with distinct (unique) combination of values, for a table expression argument. However, when I try to return a value from a column in that table using SUM to sum all my columns, DAX doesn't recognize my table at all. Nov 26, 2025 · Returns a table with selected columns from the table and new columns specified by the DAX expressions. The following code query an error. VIEW. For example, the formula IF(<condition>, TRUE(), 0) returns Nov 18, 2018 · Hi all, If we define a variable as a table, can we later refer to the columns in that variable? For instance, we have the following code: VAR TableVar = SUMMARIZECOLUMNS ( 'Product'[ProductKey], 'Product'[Color] ) RETURN COUNTROWS(CALCULATETABLE ( TableVar, TableVar[ProductKey] = 1 )) wh Nov 26, 2025 · Table manipulation Functions These functions manipulate and return tables. Jun 29, 2024 · The SELECTCOLUMNS function returns a table with new columns specified by the user. Sep 10, 2019 · I am trying to build a DAX measure that will return the latest [Universe] value. A table which includes combinations of values from the supplied columns based on the grouping specified. When a table name is given, returns a table with the same columns and all the rows of the table (including duplicates) with the additional blank row caused by an invalid relationship if present. Feb 22, 2024 · Select_Column = VAR SelectedColumn = SELECTEDVALUE(Slicer_Table[Slicer_Options]) RETURN SWITCH( SelectedColumn, 1, Data_Table[Column_1], 2, Data_Table[Column_2] ) However, this doesn't work. Basically I would like the equivalent of something like this. Retrieves a value in the visual matrix from the first element of an axis. If all expressions evaluate to BLANK/NULL for a row, that row is not included in the table returned. Based on that, I have created 3 scenarios and created 3 EndDate columns. Oct 20, 2023 · Return value A table, when the passed parameter was a table, or a column of values, when the passed parameter was a column. The lookup functions work by using tables and relationships, like a database. Nov 26, 2025 · When a column name is given, returns a single-column table of unique values.