The value that’s returned if the logical test is TRUE. . This DAX function returns a related value from another table when it's used as a lookup function. This article describes how to correctly use column references when manipulating tables assigned to DAX variables, avoiding syntax errors and making the code easier to read and maintain. Moreover, it contains functions that businesses can implement to optimize their data. Here, we have the new SUMMARIZED table, which we have summarized based on “State” and “Category. More Power BI / DAX Tips. The RELATED DAX function in Power BI presents an incredible opportunity for organizations to unlock the true potential of their balance sheet analysis. The SELECTCOLUMNS function is commonly used in Power BI and Excel. In the AdventureWorksDW dataset, we have three tables related to Product information; DimProduct has the details of every single product;. IF (15 IN VALUES ('Calendar' [MonthNoIndex]) ,"Yes" ,"No" ) This little statement checks if 15 is contained in the table returned by VALUES (). Techniques such as scenario analysis, sensitivity analysis, and what-if analysis can be. In this article, we focus on a simple description of the function and its main use cases. This DAX function returns a related value from another table when it's used as a lookup function. Related functions. This function is deprecated. 2. The. » Read more. To know how to overcome the above issues and get the RELATED function work as expected and the IntelliSense list suggested columns, Please check Why the RELATED DAX function is not working in. » Read more. Power BI DAX Functions. See Remarks and Related functions for alternatives. DAX Filter Functions. » Read more. There is always a filter context for DAX expressions. Volatile. However, if you are sure that the tables already have a relationship and the provided column name is correct but the RELATED function still is not working as expected and the IntelliSense doesn't list any suggested columns, so you maybe encounter this behavior due to one. SUBSTITUE function is a Power BI DAX TEXT function that allows to replace existing text with new text in a text string. This function effectively bridges the gap between disparate tables, providing. The use of this parameter is not recommended. Now, apply the SUMX function in Power BI. 'Main' [Location] == RELATED (Indianlocations [Location]), 9, IF ('Main' [Location] == RELATED (Otherlocations [Location]), 8, 0) ) In case you want to use IN operator, try following DAX. Define the scenarios: Clearly define the scenarios you want to analyze and the specific variables or factors that will change in each scenario. (DAX – Power Pivot, Power BI) There are two functions in DAX with similar, and sometimes replaceable, use. RELATED Vs LOOKUPVALUE DAX in Power BI. Returns the largest value in a column. Key Features of DAX Functions. A table of values. When you evaluate a DAX expression, a blank value is always converted to 0 or to an empty string, depending on the data type requested by the expression, unless it is evaluated in any term of a multiplication, in which case the blank value propagates in the multiplication result. 1 . The use of this parameter is not recommended. Step-3: Drag both measures onto the table visual. Calculatetable dax. End Date: The date you want to count the difference to. RELATED(<column>) IN operator in Power BI returns either TRUE/FALSE value. The syntax for DATEDIFF DAX function is: = DATEDIFF (Start Date, End Date, Interval) Start Date: The date you want to count the difference from. If you like to know more about the RELATED function, read this article. -- argument that defaults to a blank. A: incorrect - RELATED DAX function requires a relationship between 2 tables, while we can't build a relationship between sales (daily) & returns (weekly) B: incorrect - This procedure will change weekly data in returns to daily, and eventually will end up incorrect results after being aggregated to weekly C: unnecessary & incomplete. Returns a related value from another table. In Power BI Desktop model view, it's not always possible to determine whether a model relationship is regular or limited. This cheat sheet is your handy companion when working with DAX formulas and statements in Power BI. Learn how to work with the RELATED and RELATEDTABLE function in DAXLearn SUMX - - - - My Courses - - - - ️ Maste. A calculated column expression, where the current row context is unambiguous. Measures. This function gives you the subtable from the other table for all the rows related to the current row. We also. Some DAX functions return a table instead of a scalar, and must be wrapped in a function that evaluates the table and returns a scalar; unless the table is a single column, single row table, then it is treated as a scalar value. So, I don't think it is used correctly here. I always recommend using. B. Column = LASTNONBLANK (SELECTCOLUMNS (RELATEDTABLE ('Interview Result'),"Status", [Final Status]),TRUE ()) Did I answer your question? Mark my post as a solution!The SUM function in DAX is an aggregation function that calculates the sum of a numeric expression for a specified column or table. Related articles. RELATED Function: This DAX function's goal is to enable you to retrieve pertinent data from tables other than the one you're currently working in. See examples of how to use it in calculated columns, measures, and measures with filters. . A measure is evaluated in the context of the cell evaluated in a report or in a DAX query, whereas a calculated column is computed at the row level within the table it belongs to. This function is deprecated. BiDi:= CALCULATE( [Distinct Count of ProductKey], CROSSFILTER(FactInternetSales [ProductKey], DimProduct [ProductKey]. . As you can see in the above table, RELATED and LOOKUPVALUE have the same result, however, each function has its own syntax and. Not recommended. Other related functions are: CONCATENATEXUnderstanding the difference between LASTDATE and MAX in DAX. The RELATED function enables users to access data from related tables using the defined. Power BI and other BI tools make excellent use of. In the AdventureWorksDW dataset, we have three tables related to Product information; DimProduct has the details of every single product;. A volatile function may return a different result every time you call it, even if you provide the same arguments. In this blog, we learn the 4 relationship functions of DAX with practical examples. Consequently, it’s not possible to validate the data is indeed 1:M and the RELATED DAX function won’t work. As you can see, functions in DAX can help you create very powerful formulas. For example, the following measure calculates the quantity by dividing the existing Sales Amount measure by the Unit Price value of the selected product. Here is a step-by-step guide to help you implement the RELATED DAX function for risk assessment in Power BI: Identify the tables and data sources that contain relevant information for risk assessment. Not recommended. To apply the RELATED DAX function in Power BI for break-even analysis, follow these step-by-step instructions:1. The Calendar function is a DAX function that allows you to create a custom calendar table. Application of DAX functions in retrieving month names from the date column in Power BI. Any DAX expression that returns a single scalar value, that is to be sought in columnName. Volatile. To retrieve month names from a date column, the primary DAX function you would use is FORMAT, as previously mentioned. The primary key and foreign key are Reference Number. Hi @edithees , It seems you are adding a custom column in Power Query Editor, but the RELATED function is used for DAX. RELATED and its companion function RELATEDTABLE, are two common DAX functions that are required when using a row context with relationships. Step-3: Now create a relationship between Order date & Ship date to Calendar Date. Before learning about queries, it's important you. The lookup functions work by using tables and relationships, like a database. Modified 8 years, 2 months ago. The filter functions in DAX are among the most sophisticated and potent, and they are very different from Excel operations. Leveraging the full potential of the RELATED function allows you to navigate and analyze data from multiple perspectives effortlessly. ”. Return value. The use of this parameter is not recommended. RELATED function requires. Not recommended. Now write below DAX to fetch N number of rows sample data from the specified table. DAX ย่อมาจาก Data Analysis Expression โดย DAX คือชุดของ Functions, Operations และ Constants เพื่อการคำนวณใน Data Model ที่จะนำไปใช้กับ Power BI Desktop, Power Pivot, SQL Server. The column 'People [FullName]' either doesn't exist or doesn't have a relationship to any table available in the current context. In case of zero denominator, it returns its third. Here you will learn different DAX functions, their uses and how to utilize them. In our example, a calculated column that computes the year of the order would be as simple as this: 1. Whenever the function finds no rows to aggregate, the function returns a blank. Right click on Product table and click on New column. If this post helps, then please consider Accept it as. A volatile function may return a different result every time you call it, even if you provide the same arguments. This function does not return a value. Step-3: Now write below Dax. Jump to the Alternatives section to see the function to use. Related functions. Related functions. See Remarks and Related functions for alternatives. The value of result_columnName at the row where all pairs of search_columnName and search_value have an exact match. A volatile function may return a different result every time you call it, even if you provide the same arguments. A measure is used in the Values area of a PivotTable. Data Analysis Expressions (DAX) is a formula expression language used in Analysis Services, Power BI, and Power Pivot in Excel. Does not support Logical values (TRUE/FALSE values). When used as filters in CALCULATE, ALLxxx functions might. 2: It is the equal (=) operator which represents the beginning of the DAX syntax and also equating the two sides. How to do a COUNTIF in Power BI; How to correctly use IF in DAX; Using Icons for KPIs in Power BI; How to copy and paste data from Power BI. The functions include CROSSFILTER, RELATED, RELATEDTABLE and USERELATIONSHIP. The first argument is the “Result Column Name” since we are looking for the discount percentage from “Discount_Table,” choose the “Discount %” column name from “Discount_Table. The RELATED function plays a crucial role. PowerBI has a feature called DAX functions that are used to perform various expressions by solving various equations and return values based on arguments and functional aspects. Some of the functions that you’ll encounter in the examples below are CALCULATE, FILTER, MAX, ALLSELECTED, and many more. Learn how to use the RELATED function in DAX to access a field's value from another table that is related to the existing table in Power BI. Learn more about SEARCH in the following articles: From SQL to DAX: String Comparison. Volatile. A volatile function may return a different result every time you call it, even if you provide the same arguments. Create table using DAX. EARLIER ( [ TotalSubcategorySales ]) evaluates to $156,167. Open the LOOKUPVALUE function now. Definition. There are two ways to describe what ALLSELECTED performs and what its use cases are: a simple way and a complex way. Jump to the Alternatives section to see the function to use. The RELATEDTABLE DAX function is used to retrieve a table that is related to the current row according to the defined relationships in the data model. to find more examples refer Power BI DAX functions with examples pdf. COUNT and COUNTA are identical in DAX for all the data types except Boolean. RELATED function is a Power BI Relationship function in DAX which returns a related value from another table. DAX – GROUPBY Function. Volatile. See Remarks and Related functions for alternatives. สิ่งสำคัญของการใช้งาน Power BI ที่ขาดไม่ได้และเป็นเรื่องสำคัญมาก ๆ อย่างหนึ่งนั้นคือ DAX (Data Analysis Expressions. This tutorial highlights the DAX function, which assists in making inactive relations active as per the need of the calculation or visualization. Please find the code in the below location. Is it possible to use the RELATED() DAX function with a Measure in Power BI? As per the official Microsoft documentation, the RELATED function needs a row context; therefore, it can only be used in calculated column expression, where the current row context is unambiguous, or as a nested function in an expression that uses a table scanning function. Let’s get started-. RELATEDTABLE is a table function. name. DAX RELATED function needs a row context. PowerBI has a feature called DAX functions that are used to perform various expressions by solving various equations and return values based on arguments and functional aspects. Volatile. As your DAX skills improve, you will create formulas using many different functions. Right-click on the table and choose “New measure. Learn how to use relationship functions in Data Analysis Expressions (DAX) to manage and Utilize relationships between tables. 3: This SUM is the DAX function which is used to add the values of a given field. Evaluates an expression for each row of a table and returns the largest numeric value. How to do a COUNTIF in Power BI; How to correctly use IF in DAX; Using Icons for KPIs in Power BI; How to copy and paste data from Power BI. The 2015 version of the DAX language has many new functions, but none of them is a game changer for the language as variables are. When the function finds no rows that are non-blank, it returns a blank. Conclusion. In the dialog that opens, select the field from the first window that your tables are related on in the data model, then select your second table in the second window (the one that your RELATED function directs to),. Note: You must create a relationship to can use the RELATED DAX function. I get the same all the time as well. DAX functions are great and provide lot of flexibility to achieve desired output. . It supplies comprehensive information related to the syntax, parameters, data types, and returns values for the 250+ functions stored in the DAX library. CROSSJOIN. Step-1: Load Orders dataset into Power BI. VALUES DAX Function (Table manipulation) VALUES. Volatile. Because the active relationship is the one between Sales [OrderDate] and Date [Date], the result is the year of the order for each row. The DAX FILTER function allows you. The RELATED function is a powerful feature of DAX that allows users to retrieve data from related tables based on established relationships. Let’s get started. A volatile function may return a different result every time you call it, even if you provide the same arguments. Type Table1 (Sales) inside SUM () as shown below. The RELATED DAX function can't be used to retrieve the "one" side column values ; Enforcing RLS has topology restrictions . This article provides a complete explanation of the behavior of the ALLxxx functions in DAX. Welcome back to the Power Pivot Principles blog. 5 Important DAX Functions in Power BI for Beginners 1. To learn more about best practices when working with BLANKS, see Avoid converting BLANKs to values in DAX. The SELECTCOLUMNS function is a Data Analysis Expressions (DAX) function that allows you to create a new table by selecting specific columns from an existing table or by defining new columns. Using RELATED function in DAX with USERELATIONSHIP. By harnessing the capabilities of this function, companies can gain deeper insights into their financial data, identify areas of improvement, and drive better financial performance. DAX Userelationship function. RELATED. Related Function. DAX in Power BI. RELATED DAX FUNCTION First, we will be looking at the RELATED function, which requires a column name as an input and returns a related value from. DAX includes the following categories of functions: Date and Time, Time Intelligence, Information, Logical, Mathematical, Statistical, Text, Parent/Child, and Other functions. DAX คือชุดของ Functions, Operations และ Constants เพื่อการคำนวณใน Data Model ย่อมาจาก Data Analysis Expression โดย DAX สามารถนำไปใช้ใน Power BI, Excel (Power Pivot), SQL Server ได้ เพื่อคำนวณสร้าง Measure, Column, Table โดยมีสูตร. =SUMX ( ProductSales, ProductSales [Sales] * CALCULATE ( VALUES ( MarketValue. ) REMOVEFILTERS: REMOVEFILTERS (TableName or ColumnName,. Not recommended. DAX Functions Filter - You can use DAX Filter functions to return specific data types, look up values in related tables and filter by related values. Return Value and Further Remarks. Meanwhile, The RELATEDTABLE function allows you to retrieve a. Adds calculated columns to the given table or table expression. Data Analysis Expressions (DAX) is a formula expression language used in Analysis Services, Power BI, and Power Pivot in Excel. If two tables are linked by more than one relationship, you can decide which relationship to activate by using USERELATIONSHIP. We really only touched on the basics of functions. The SUM function is similar to the Excel function of the same name, except. Other commonly used DAX functions include SUM, AVERAGE, MIN, MAX, and many more. Therefore, the IN operator is usually better. Deprecated. Important Features of DAX functions. This article shows how to use DAX and conditional formatting together to highlight the minimum and maximum values in a matrix in Power BI. Blank values are not skipped, if data type is Text. DAX includes the following categories of functions: Date and Time, Information, Logical, Mathematical, Statistical, Text, and Time Intelligence Functions. It allows you to access data from a related table without creating complex joins or lookups in your query. There are two types of context: Row Context and Filter Context. How can I use DAX to create measures? Ans. On the other hand, the Power BI USERELATIONSHIP specifies a relationship to be used in a specific calculation as the one that exists between columnName1 and columnName2. Apply the DAX expression to a measure, calculated column, or calculated table in Power BI. See Remarks and Related functions for alternatives. As a nested. It provides a flexible way to transform and manipulate data within your DAX formulas. Related articles. Data Analysis Expressions (DAX) are the collection of formulas, functions, operators, and constants that allows a user to create measures, dimensions, and custom tables. The RELATEDTABLE function assigns values from the associated table. . Question 42: When can we use this function? or Can it work if there is no relationship between the two tables?I tried using the ISBLANK formula to check the blanks and it returned FALSE, so my question is what is the RELATED function returning when it doesn't find a value and how can I address them? Thanks in advance,Filter functions. DAX queries return results as a table right within the tool, allowing you to quickly create and test the performance of your DAX formulas. There are different types of DAX functions that can perform tasks ranging from addition, comparison, search, retrieval, and many more. Microsoft Power Platform คืออะไร. Before learning about queries, it's important you. The RELATED function is a key component of the Data Analysis Expressions (DAX) language in Power BI, which enables users to establish relationships. The COUNT function internally executes COUNTX, without any performance difference. Show 11 more. Such a function requires a table in the first argument, which corresponds to the table that is grouped. The RELATEDTABLE function is a powerful tool in DAX (Data Analysis Expressions) that allows you to access related tables in your data model. DAX functions can be categorized into several types, including mathematical and statistical functions, text functions, date and time functions, logical functions, and many more. The use of this parameter is not recommended. Hi, I have a question about the RELATED DAX function if someone can help please. It is a key function for performing advanced calculations and analysis in Power BI. Below are a few types of Power BI DAX functions: Aggregation Functions: This function in Power BI is used to work with the numbers, it includes operations like SUM, AVERAGE, MIN, MAX, COUNT, COUNTA, DISTINCT COUNT, SUMX, AVERAGEX, MINX, and MAXX. I am talking about RELATED and LOOKUPVALUE. See Remarks and Related functions for alternatives. CalculatedField =For compatibility with DAX time intelligence functions, it is a best practice to always include an entire year in a Date table. Strings. Much like the CALCULATE function described earlier, the RELATED function is very important, and you will likely use it many times. The SELECTEDVALUE function simplifies the syntax required when you use a numeric column of an entity as a parameter in a calculation. Learn more about ALLEXCEPT in the following articles: Managing “all” functions in DAX: ALL, ALLSELECTED, ALLNOBLANKROW, ALLEXCEPT. g. RELATED DAX Function in Power BI Demo: Using Adventure Works Data Warehouse Tables. The RELATED DAX function is a powerful tool in Power BI that allows users to establish relationships between tables and retrieve data from related tables. Both can be used to assign values from other table - similarly to VLOOKUP in Excel. It attempts to reuse the data that has been grouped making it highly. Key Features of DAX Functions. I am trying to bring a column from the dimension table to the fact table but using the DAX Related function but it is not working. The SELECTCOLUMNS function is a Data Analysis Expressions (DAX) function that allows you to create a new table by selecting specific columns from an existing table or by defining new columns. Function. . By defining relationships, Power BI can accurately calculate ratios and perform other complex calculations based on the connected data tables. Jump to the Alternatives section to see the function to use. This parameter cannot be an expression. Create the necessary relationships between the tables by specifying the related columns and their relationship type (e. When using DAX, we can use the CROSSFILTER function to change how the cross-filter direction behaves between two columns defined by a relationship. 4. In this tutorial, I’ll show you some advanced formulas and DAX examples using different functions in Power BI. Statistical Functions: They are associated with statistical distributions and probability, such as standard deviation and number of permutations. Start by importing the necessary data tables into Power BI. RELATED(<column>) CALCULATE Function: This Function makes simple calculations of multiple variables easy. = RELATED(ColumnName) ColumnName is the column name you want to retrieve values from (must reference a table on the “one” side of a many-to-one relationship). DAX Function แนะนำฟังก์ชัน Related. Since it is not an inbuilt function, the user needs to replicate it using the DAX function like the LOOKUPVALUE DAX function. One of the most powerful features of Power BI is DAX (Data Analysis Expressions), which is a formula expression designed for advanced data. Power BI is one of the most robust and powerful business intelligence tools out there. BITOR = BITOR(BITWISE[Number1],BITWISE[Number2]) Power BI Bitwise XOR (BITXOR) DAX BITXOR function returns a bitwise XOR of two numbers. The RELATED function works by traversing the established relationships between tables and returning values from the related table. If you have any questions related to this project, please feel free to post your comments. RELATED and RELATEDTABLE are two elementary but powerful functions. Measures can be based on standard aggregation functions, such as COUNT or SUM, or you can define your own formula by using DAX. Most DAX functions require one or more arguments, which can include tables, columns, expressions, and. The RELATED DAX function can be utilized in advanced techniques for cash flow forecasting in Power BI. A volatile function may return a different result every time you call it, even if you provide the same arguments. Related articles. GROUP BY permits DAX CURRENTGROUP function to be used inside aggregation functions in the extension columns that it adds. Return value. Go to the Modeling tab> Click on New table. So, if they are similar, which one should be used in which situation? Why to use RELATEDIn other words, the expression returns the sum of freight charges for only the specified sales area. By leveraging. . Is it possible to use the RELATED() DAX function with a Measure in Power BI? As per the official Microsoft documentation, the RELATED function needs a row context; therefore, it can only be used in calculated column expression, where the current row context is unambiguous, or as a nested function in an expression that uses a table. The RELATED DAX function in Power BI is a powerful tool that allows users to establish relationships between different tables within a data model. Volatile. Experiment with advanced techniques, including custom DAX expressions and calculated columns, to further refine and enrich your scenario analysis with the DISTINCT function. You can use the DAX DATEDIFF function third argument to select the difference value. ADDCOLUMNS. Step-1: Relationship should be important for this, let’s create a relationship between both tables. PMT() returns a value that includes principle and interest only. This function is deprecated. Not recommended. RELATED, RELATEDTABLE – DAX Guide. 3. Many of the functions in DAX are similar to the Excel date and time functions. It allows users to define custom calculations based on specified conditions. Product Category AlternateKey. When the function finds no rows that are non-blank, it returns a blank. RELATED Vs LOOKUPVALUE DAX. It takes one argument: the name of the column in the related table to retrieve the value from. Returns the smallest numeric value in a column, or between two scalar expressions. Many of the functions in DAX are similar to the Excel date and time functions. RELATED works only for side 1 of the relationship, for side many you need to use RELATEDTABLE. This function is a shortcut for CALCULATETABLE function with no additional filters, accepting only a table reference and not a table expression. In my next blog, we will learn more about DAX. Jump to the Alternatives section to see the function to use. As I already wrote in this blog, many-to-many relationships are not directly supported by DAX and we can work-around that by writing more or less complex DAX expressions. Deprecated. See the most common uses, common misperceptions,. Write the DAX expression using the ALL function, specifying the column or table to ignore filters on. Deprecated. While using this DAX function it is important to understand the following items: For this function to work it is important to ensure that there is a relationship created between the current table and the table with the related information you are. The DATESYTD() function in DAX enables us to calculate values for the year-to-date period. The fifth variance — Filtering columns from two tables. Step 2: To check, use Card visualization and drag SalesSum on the canvas. Power BI support more then 200 types of DAX functions like- Date & Time functions, Filter functions, Text functions. Ensuring data consistency4. One of the most powerful features of Power BI is DAX (Data Analysis Expressions), which is a formula expression designed for advanced data. , one-to-one, one-to-many). The following example uses the RELATEDTABLE function to create a calculated column with the Internet Sales in the Product Category table: DAX. You can create a measure as below using related function: Sales [Sales at List Price] = SUMX ( Sales, Sales [Quantity] * RELATED ( 'Product' [List Price] ) )Or try to use the LOOKUPVALUE function to retrieve the lookup value . I assume history date is the extract date, so you would end up with potentially 2 date columns. The historical DAX function that aggregates and group data leveraging existing relationships is SUMMARIZE. Jump to the Alternatives section to see the function to use. . If the REMOVEFILTERS function is supported by your tool, it's better to use it to remove filters. You can use this approach to create a virtual relationship. Advanced Techniques: Using RELATED DAX Function for Dynamic Pricing Analysis. The filter and value functions in DAX are some of the most complex and powerful, and differ greatly from Excel functions. The use of this parameter is not recommended. Calendar Function. ALLSELECTED DAX function Sample Data. However, there are some built in DAX functions which can take advantage of existing relati. Data Analysis Expressions, or DAX for short, are expressions and formulas for analyzing and calculating data. ALLSELECTED_DAX = CALCULATE ( Sum (Orders [Sales]), ALLSELECTED (Orders [Product Sub-Category])) According to the ALLSELECTED definition, by default, it. Volatile. Related articles. This can be in either days, hours, minutes, months, quarters, seconds, weeks. This can be done by selecting the "Manage Relationships" option in the "Modeling" tab and defining the relationship based on the relevant columns. By defining. Let’s get started-. Power BI Model relationships in Power BI Desktop Article 10/27/2023 11 contributors Feedback In this article Relationship purpose Relationship properties. Because this column is in a different but related table, you can use the RELATED function to help you get it. The functions include. You'll learn to write. The context of the cell depends on user selections in the. Data Analysis Expressions (DAX) includes time-intelligence functions that enable you to manipulate data using time periods, including days, months, quarters, and years, and then build and compare calculations over those periods. OrderYear = RELATED ( 'Date' [Year] ) Copy Conventions # 2. Volatile. Jump to the Alternatives section to see the function to use. Not recommended. Show 11 more. We have a 1:* relationship between 2 tables. The next argument is “Search Column Name 1,” so this will. Poznámky. Other related topics: Pre dictive Analytics; Power BI Embedded; Power BI Governance; Power BI Training . Here is the starting point for this requirement. It allows users to access data from related tables based on defined relationships. You learned that Time. Therefore, while the RELATED output is one unique value, the output of the RELATEDTABLE function is a. See Remarks and Related functions for alternatives. It comes under Relationship functions category. Viewed 30k times 6 I am trying to pull in a field from another table in my BISM model using the "RELATED" function. It can only. The RELATED function retrieves values from a related table based on the active filter context. The COUNTA function internally executes COUNTAX, without any performance difference. A. So, I don't think it is used correctly here. This article describes how to create a virtual relationship in DAX using the TREATAS function, which is more efficient than approaches based on INTERSECT or FILTER. Any DAX expression that returns a table of data. If you’re familiar with functions in Excel formulas, many of the functions in DAX will appear similar to you; however, DAX functions are unique in the following ways: The Power BI RELATED function is a Relationship function under DAX (Data Analysis Expressions) function used to retrieve a single value from a related table based on a defined relationship. Functions like FILTER, ALL, and RELATED are integral components of the DAX toolkit. . The WINDOW function in DAX has opened up a whole new world of possibilities for Power BI users, giving them the power to perform complex calculations and analyses on sets of data in a way that is efficient, uniform, and elegant. Syntax RELATED ( <ColumnName> ) Return values Scalar A single value of any type.