I can skip the Table.Transpose by using Table2 = Table.FromRows({List1,List2}). If your data has rows that move around a bit because someone inserts or deletes rows above it, see this blog post on how to dynamically find that first row and remove the appropriate number of rows. In the Measure tools ribbon, click the Format drop down, and then select Dynamic. Renaming A Column In Power Query Based On Position Thats how we programmed our custom visual. It certainly looks a lot simpler than my solution! Details: List. Lineage is a part of DAX mechanics that enables us to use tables as filter arguments for the CALCULATE function. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The dropdown listbox to the left of the formula bar should now say Format, and the formula in the formula bar should have a format string. Unfortunately, while typing, it jumped from the second line to the first line, but it is the same "Source". Any help would be most appreciated! If we run that expression, this is how it looks like in PowerQuery: Each nested list is holding the original and new name of the column. Hypothetically, if I had a slicer based on Seasons of the year, I would want my columns to reflect the names of the month in that season. I've gone with Ivan's answer because in production, I have some columns that I don't want to rename plus I was trying to figure out how to use the Table.RenameColumns function properly. I am also trying to do this for my report and am trying to follow along your explanation. Explanation ALLSELECTED is one of the most complex functions in DAX. The syntax for the function is: Table.TransformColumnNames (table as table, nameGenerator as function, optional options as nullable record) The first parameter is the table name. If total energies differ across different software, how do I decide which software to use? Rename columns in Power Query when names change With the Index column selected click Transform > Standard (dropdown) > Modulo. 565), Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. Example of my measure DAX: Previous 2Month = calculate([Sales Amount], PARALLELPERIOD('Date' [Date],-2,MONTH)) I want an output like this: Message 1 of 4. This will pick up all column names ending in . Name 2 will always be the second column.). Parker here. This is why the errors dont matter. Has the cause of a rocket failure ever been mis-identified, such that another launch failed due to the same problem? Power BI > How to efficiently change the column names? - Leading We also glimpsed at the each keyword so overall I hope this article was clear enough and educational. Information and consulting on Business Intelligence using Microsofts Power BI and Excel applications. Does the 500-table limit still apply to the latest version of Cassandra? Can you clarify on "Dimension" being the previous step of the code? Copy. I am trying to dynamically rename a set of columns in Power Query, List1 being the original column names and List2 the new column names. So it sounds like a strange request to me, but if you think something should be possible, I think you'd better start a new topic. I need to create a global application where we will have an actual data table. We can use a List in Power Query to make this dynamic. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Adding EV Charger (100A) in secondary panel (100A) fed off main (200A). Is there a more intelligent way of doing it? The keyword each is a sugar syntax for iterating function invoke that is holding a single underscore argument that is entering the function. The Source step of the inner environment (environment of the ListObjectWithCleaningLogic variable) should also point to the function input variable. "When you rename a column in the Query view of the Power BI Designer Preview, it implicitly triggers the column references in your reports to be updated. It is preferable to use it only as a CALCULATE filter remover, not as a table function. What is Lineage? Hi I have many tables with codes as headers (ITMREF, ITMDESC) etc, and I have a 2-column Excel file in which I have the definition of each code (ITMREF = Item ID, ITMDESC = Item description). with Power BI reports and Excel pivot tables! this looks like a bug - you should send a frown" [2015], "Once the column name changes the report breaks because it's expecting the previous column name" [2017]. Which language's style guidelines should be used when writing code that is supposed to be called from another language? Power BI - Dynamic Columns in a Table - YouTube It should be this again: 6) Replace the 11/20/2020 Production Quantity" with Table.ColumnNames(#"Promoted Headers"){1} and replace 11/20/2020 with Table.ColumnNames(#"Promoted Headers"){2}. How do I properly use table.group in a PowerQuery query to dynamically summarize different rows and columns? 2- After that create duplicate dataset for columns un-pivot. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Using the general approach of demoting headers -> transposing tables -> cleaning the first column -> transposing again was not an option because files were big, therefore double transpose would take forever to process. Notice the Index column has values 0, 1, 2 repeating. Which was the first Sci-Fi story to predict obnoxious "robo calls"? Find out more about the April 2023 update. In my example we can switch in a slicer between Money and Volumes. Why refined oil is cheaper than cold press oil? Rename columns - Power Query | Microsoft Learn Find centralized, trusted content and collaborate around the technologies you use most. I need this that i can use same template in every customer case and i dont have to change Dimension names every time i change data source. Change column name Dynamically on visuals in Power BI. Now you see where this is going? This is because this column is the only one that does not require multiple translations and therefore its header title will always remain static: Here will be stored the columns that need to have a dynamic header title. Parabolic, suborbital and ballistic trajectories all follow elliptic paths. This visual allows us to generate the title based on a measure: And thats it, the custom visual is ready to be tested. We will need to use Table.RenameColumns() function, but with a dynamic argument holding column names to change. Next, select the FactInternetSales table which will be imported to Power BI and click "Transform Data" as seen in the diagram below. The easiest way to rename a column in Power Query is to do it the same way you do in Excel - just double-click it and rename it. Better to show it, here is Power Query code snippet, query "columnNames . The following M code will give us the old and new, cleaned column names. R1-6 represent their spend classification in text in regards to the current Month - For example today's date is 4th of May, 2020 then R1 represent Classifications in April and R2 for March etc etc. Double-click the column header: The double-click action immediately lets you rename the column. That will cause problems in the refresh. Power BI: Custom table with dynamic header titles - Medium I don't think there is anyway to rename column dynamically, You can create 5 measures, using current date and figure out all the years, You can add those measures to a table/matrix and overlay it on your main table. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. On the other side, doing so makes Power Query code less readable and editable plus you need to do some typing (coding). Unless you have some complex requirements for the function to rename the columns, my solution here is overkill and too complex. The try/otherwise construct says Try this formula. It is each column name in the table from the Promoted Headers step. Find centralized, trusted content and collaborate around the technologies you use most. Receiving an adequate list argument for the Table.RenameColumns() function was the harder part of development. Well add it back at the end when our column names are predictable. Lets analyze the Visualizations pane: This data role will contain only a single field and thats the ID. COMMENTS? Getting the most out of Power BI, Power Query, and Power Pivot, Microsoft MVP - Data Platform (Power BI): 2020 - CurrentMobile Devices: 2000-2011, Renaming A Column In Power Query Based On Position, see this blog post on how to dynamically find that first row, Microsoft MVP - Data Platform (Power BI): 2020 - Current, Why You Should Avoid Calculated Columns in Power BI, Working With Multiple Windows in Tabular Editor 3, Working With Sparklines In Power BI - All About The Filter Context, Add an Animated GIF to Your Power BI Reports, Be Careful When Filtering for Blanks in DAX, Quickly Format All DAX Code in Tabular Editor, Working With Multiple Row Headers From Excel in Power Query, Change The Day Your Week Starts In Power Query, Replace Power BI Alerts with Power Automate Alerts for SQL Server Data, Use List.PositionOf() To Find The First Row of Data In An Excel File, Group By In Power Query When Data In Column Changes, Add a Refresh Time Stamp To Your Power BI Reports, Return Row Based on Max Value From One Column when Grouping, Using List.Contains To Filter Dimension Tables, Use Power BI's Enter Data Feature In Excel, Avoid Using Excel XLS Files As A Data Source, Quick Tip: Use Recent Sources to Add New Tables, Making Sense Of Subtotals Settings In The Power BI Matrix Visual, Create A Dynamic Date Table In Power Query, Quickly Pad Columns in Power Query with Text, Intellisense in Power BI's Power Query Formula Bar. were you able to get this working? (adsbygoogle = window.adsbygoogle || []).push({}); Support only Import mode, it will not work with Direct Query Mode, reason behind when you transform the columns it will switch your dataset as in Import Mode. For this scenario, we will implement the following ones: The association between the dynamic column values and dynamic column headers will be done through their data role index. Wouldnt be nice to add multilanguage support to our visualization? Table indexing starts from 0, so running this expression will yield the following record. Dynamically change measure header name based on cr - Power Platform It should now look like this: It is dynamically finding the column name of the 2nd and 3rd columns and replacing it with specific text! I have the exact same issue. Not the answer you're looking for? Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? EXCEED Solutions d.o.o.Drenika 21, 10000 Zagreb, HrvatskaOIB: 25417969805MBS: 081124327IBAN: HR6523600001102641074info@exceed.hr+385 98 9461 471Ured: Modruka 2, 10000 Zagreb. Receive the latest updates on all business analyst news across all platforms. In order to add multilanguage support to our report, we need to have a record for each title translation that can be displayed. For the moment I am going to rename the columns manually by double clicking on the column headers and changing the names. To learn more, see our tips on writing great answers. The best way to maintain this data is to create a new table, which will be responsible of storing these translations. The second parameter, here, plays the main role. Name the column Date and use this formula: You dont have to have the line breaks and indents, it just makes it easier to read. Again, remove any automatically added Changed Type step if Power Query added one. Thanks Ivan, I've restated the original example using your solution. Replace the format string with the following DAX expression, and then press Enter: DAX. Its based on three core promises: transparent pricing, short-term flexible contracts, and time zone affinity. Each dynamic column value must . 1) We need that date in a new Date column so we can relate it to a Date table later. NOTE: If you had any Changed Type step created by Power Query, delete it. Key features our custom visual will have: Data roles define the type of data that our visualization will receive as input. SOUTHWORKS Development on Demand is the new model for nearshore software development. In this code "Dimension" is the name of your previous step in the code. SUGGESTIONS? If we want to make our rename columns function dynamic we need to alter the nested lists argument so that it accepts wrong and correct column names for each column. For each trimmed column name, look up the value in the first row of that column (which should give you a list of 5 different strings, which will be the new column names). If I change the underlying sql script so that the column names are changed dynamically at the start of every month then it won't refresh because the same column names cannot be found by next month in the displayed table. Power Query: Dynamic column names - code effectivity - LinkedIn What are the advantages of running a power tool on 240 V vs 120 V? From here, you can type in the new column name, and click "Ok" when done. Say goodbye to manual column renaming and hello to more time for analyzing your data! We can state that lineage is Crossfilter is a feature of DAX when it filters the underlying dataset even though there arent any visual filters present. Dynamic Power BI Slicer Using DAX Logic - mssqltips.com Change column name Dynamically on visuals in Power BI Effect of a "bad grade" in grad school applications. We have only a single table argument entering our function (TableWithDirtyNames). The article was inspired by a request from a client who had issues exporting data from its data warehousing program to .csv files. Lets explain the most important parts about the script so far: As a side note, the same could be achieved by using Table.ColumnNames() function which would give us a list of all table column names. 5) Delete any steps you have up to the Promote Headers. (adsbygoogle = window.adsbygoogle || []).push({}); 1- Assign index to each rows using Index column under Power Query Editor. A possible solution for this requirement would be to create a different copy of our table visualization for each of the languages that we want to support. Parker here. when i select a month from slicer , i want to see my meaure "revenue" with the month name from slicer. One approach using Power Query might be to implement some steps like: The code below basically tries to do the above. The easiest way to rename a column in Power Query is to do it the same way you do in Excel - just double-click it and rename it. Its also used in row2filter context transition and other aspects of the data model that involve filter propagation throughout the model. M Power Query refer to DAX calculated table as a source, How to filter the data based on particualr column for the current fiscal year in sql, DAX Query for getting Total customer who made first Purchase. Where can I find a clear diagram of the SPECK algorithm? When I rename columns it breaks the tables I have made. Is there a way to dynamically identify and expand an embedded table's columns? I would like to dynamically change my column headers using that Excel table without the need to go throu. Does the 500-table limit still apply to the latest version of Cassandra? Follow these steps in order to change column name dynamically. 4) On the Home ribbon, click Use First Row as Headers. F1 F2 & F3. This slicer will grow automatically as we include more languages to the Internationalization table, making it easy to scale: Now we need to import and configure the custom visual. We use cookies to ensure that we give you the best experience on our website. Connect and share knowledge within a single location that is structured and easy to search. However, when you rename columns through some dynamic logic, this mechanism isn't triggered and the column references in reports are broken. Did the drapes in old theatres actually say "ASBESTOS" on them? Does anyone know a good workaround to preserve column references in the visuals after applying such a bulk rename step? We can use a List in Power Query to make this dynamic. If you have a date in your date model, you always need a good date table. Fortunately, theres a better option to the one described above. This is a good solution but after changing the column name with the help ofPower Query Formula Language (M), when I apply those chnages to dashboard the visuals were failed load. Stating the original problem according to Ivan's solution, here goes. I currently have a table like the one below (I know it's kind of odd logic): I would like to have the columns instead show the following: Since the data source I get this from automatically changes the first five columns to the appropriate year, I was hoping I could set the "Value" columns to have dynamic names based on the values found in the first five columns. If you wish to follow along or use the final function in your solutions, you can download the Excel file here. 2.) Generally, we use the output of the previous step in here. Many thanks for your help. Now, when switching between the available languages, the header titles will change dynamically to the corresponding translation: Last but not least, we need to add dynamic titles to both slicer and table visualization. Check it out, Introduction to Power BI FREE Online course, Power Query Online Training [updated 2022], M Language Online Course: The unofficial and Practical Reference Guide, Dynamically find and filter header rows and promote them in Power Query. Since we needed to consolidate every daily export in a single database (we are talking about 365 different exports for a single year of data), we needed to create a function that will dynamically clean column names from additional spaces. It takes a nested list of old and new column names as its second argument. Change column names dynamically with parameters in Power BI Date.FromText() will take the date in the first row and convert 11/20/2020 to a real date. Posted June 27, 2022. In the last 2 steps, we renamed both columns and cleaned values in the. Efficiently rename columns with a function in Power BI and Power Query The easiest way to achieve that through the PowerQuery user interface is to add a new custom column and write the following expression. What's up guys! If commutes with all generators, then Casimir operator? Introduction In this example, we will explain a very important feature of CALCULATE filter arguments. The Table.ToColumns(Table.Transpose) solves the "I need to merge List1 and List2 into a single list of pairs" nicely as the second argument for Table.RenameColumns. What risks are you taking when "signing in with Google"? Change column name dynamically in Power Bi - Power BI Docs Power Query - conditional column with multiple entry criteria, How to get Column Names dynamically in Excel Power Query, Power Query: how to add columns for each row in a list, Power Query: (Data from Folder) New CSV with added columns replacing last columns from other csv in folder. powerquery - Dynamically rename a set of columns using Power Query Every time program had exported the data, column names exported with a random number of spaces. Series: https://goo.gl/FtUWUX- Power BI dashboards for beginners: https://goo.gl/9YzyDP- Power BI Tips \u0026 Tricks: https://goo.gl/H6kUbP- Power Bi and Google Analytics: https://goo.gl/ZNsY8lPOWER BI COURSES:Want to learn Power BI? rev2023.5.1.43404. https://bondarenkoivan.wordpress.com/2015/04/17/dynamic-table-headers-in-power-query-sap-bydesign-odata/, If you have the resulting column names you want, it seems like you could convert Source back to rows, then call Table.FromRows on List2, (Unless it is wrong to assume that e.g. The visual will consist of a simple and plain table, allowing to have multiple columns and rows. Making statements based on opinion; back them up with references or personal experience. I only used Text.Trim transformation over the NewColumn, but you can also use any other transformation to further clean column names, like Clean, Text.Proper, etc. These are retrieved from the Internationalization table: Remember that each title on the Dynamic column header data role will be associated to the Dynamic column column value field that shares the same data role index. I am reallys stuck and have been hacking away at this for a while. However, when you rename columns through some dynamic logic, this mechanism isn't triggered and the column references in reports are broken. Infact, under column values it is showing error #, ------- Dynamic field names as values for the above line for Dept 2, not just with flat Excel tables, but also. Some issues: For simplicity, I've hard coded the 5, but if your table can change (such that the columns you need to rename may not always be the last 5), then a more dynamic approach might be something like: oldNames = List.Select (Table.ColumnNames (someTable), each Text.EndsWith (_, " Value")). If you have a table with old and new names then you can use following pattern. I think I need to merge List1 and List2 into a single list of pairs, but can't figure out the correct syntax. e.g. All we need do is create a connection to SQL Server and import the FactInternetSales table to Power BI as seen below. Lets see what we can do about it. the Renamed columns1 step seems like it should work, but then it throws the error. Right click on column to Unpivot: Right click on the column you want the data to be pivoted & click on unpivot Other Columns. Dynamically change column names in Power Query using - antmanbi If your table is empty, then I think you'll get an error when looking up the value in the first row (as there won't be a first row in such circumstances). Sometimes though the column you are renaming can have different names with each refresh, so this method wont work. However if I leave it at R6-1 then I have to go to the displayed tables and changed the column names one by one every month. Just think about having to support 20 different languages, the report would rapidly turn into a nightmare. These changes should be dynamically applied to all the created chart objects. As a rule of thumb, you should not use it in iterative functions. you said "TransformColumnTypes", did you mean TransformColumnNames? Dynamically Change Column Displayed name - Power BI We put the whole logic of nested lists inside of a ListObjectWithCleaningLogic step. No hidden fees. Here I have some additional requirements. In this article, we'll show you some simple and advanced techniques for replacing column names in bulk. What's up guys! In this video, I take you through a quick tutorial to demonstrate how to set up dynamic columns in a table in Power BI. (adsbygoogle = window.adsbygoogle || []).push({}); (adsbygoogle = window.adsbygoogle || []).push({}); Hope you enjoyed the post. As far as I know, it is not possible to do it currently. Having said that, it is important to remember that small details can make a big difference. 4. Youll find me here: Linkedin https://goo.gl/3VW6Ky Twitter @curbalen, @ruthpozuelo Facebook https://goo.gl/bME2sB#CURBAL #SUBSCRIBE 2.) Youll notice I used {1} to get the second item in the list. When a gnoll vampire assumes its hyena form, do its HP change? So for each row in a table, the underscore will push the currently iterating row old and new column name inside of the list structure that was introduced with the {} bracket syntax. Here you can find the available courses:https://curbal.com/courses-overviewABOUT CURBAL:Website: http://www.curbal.comContact us: http://www.curbal.com/contact************************QUESTIONS? Create dynamic format strings for measures in Power BI Desktop - Power BI Let's get started and learn how to rename columns like a pro in Power Query. ID F1 F2 F3 ------Columns same as Data table(Table1) name, 1 X Y Z ------- Dynamic field names as values for the above line for Dept 1, 2 A B C------- Dynamic field names as values for the above line for Dept 2, So, whenever Departement 1 will use my application that time the field names will be X Y Z which will replace the Data Table(Table1) field names i.e. something like "revenue June 2018 ". Otherwise, return null. It is like IFERROR() in Excel. Consider this very simple example: You . The filtering is set to single select to avoid selecting multiple languages at once. Power BI. For example, the Dynamic column header with a data role index of 1 will be linked to the Dynamic column value that has a data role index of 1: Once we create the custom visual, its time to go back to the report. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Now that we have the correct argument form, we need to create a function that would accept a table variable with messy column names and clean it with the logic we already set in the list argument.Following is the complete M function code: We used this technique to dynamically change column names without transposing the table structure. Short story about swapping bodies as a job; the person who hires the main character misuses his body. After we transformed that record to a table, we duplicated the values column which is holding the old column names. Find out about what's going on in Power BI by reading blogs written by community members and product staff. previous = measure. Change column names dynamically with parameters in Power BI. That means that other transformations of the values in the NewColumnName column should be added after the TrimmedText applied step.We used list and record objects in creating the solution so hopefully, you got a clearer picture of how to use them and where. 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