dynamically change the column name in power bi dynamically change the column name in power bi

Improve your PowerQuery skills with Exceed Academy. Did the drapes in old theatres actually say "ASBESTOS" on them? However, when you rename columns through some dynamic logic, this mechanism isn't triggered and the column references in reports are broken. 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. However, when you rename columns through some dynamic logic, this mechanism isn't triggered and the column references in reports are broken. 1.) 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. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 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. 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. Now all the needs to be done is to apply this zipped list . This is the simplest part of the tip. 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. 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. Making statements based on opinion; back them up with references or personal experience. This will open the "Rename" dialog box. Information and consulting on Business Intelligence using Microsofts Power BI and Excel applications. For the demonstration purposes, we will use an extract from the Contoso database. Would love your thoughts, please comment. 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. Here I have some additional requirements. If you have a date in your date model, you always need a good date table. Receive the latest updates on all business analyst news across all platforms. 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). 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. Microsoft Power BI Learning Resources, 2023, Learn Power BI - Full Course with Dec-2022, with Window, Index, Offset, 100+ Topics, Formatted Profit and Loss Statement with empty lines, How to Get Your Question Answered Quickly. Pretplatom na newsletter prihvaate politiku privatnosti koja se nalazi u podnoju. Find out more about the April 2023 update. 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. 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! 4) On the Home ribbon, click Use First Row as Headers. When used improperly it can lead to unexpected results. NOTE: If you had any Changed Type step created by Power Query, delete it. Just think about having to support 20 different languages, the report would rapidly turn into a nightmare. If it works, give me the result. Having said that, it is important to remember that small details can make a big difference. 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. Is there a more intelligent way of doing it? In this article, we'll show you some simple and advanced techniques for replacing column names in bulk. Once your account is created, you'll be logged-in to this account. COMMENTS? Thanks Ivan, I've restated the original example using your solution. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Remember! 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. To learn more, see our tips on writing great answers. Asking for help, clarification, or responding to other answers. Any help would be appreciated with solving this in either DAX or Power Query. 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. The visual will consist of a simple and plain table, allowing to have multiple columns and rows. Now the date will fill the column. Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? Key features our custom visual will have: Data roles define the type of data that our visualization will receive as input. something like "revenue June 2018 ". That will cause problems in the refresh. Now fetch the names that are currently applicable to the columns. 4. This will pick up all column names ending in . Notice the Index column has values 0, 1, 2 repeating. There might be easier solutions and i welcome every solution you can give me. Its based on three core promises: transparent pricing, short-term flexible contracts, and time zone affinity. If you did double-click though, this would be the formula Power Query would generate: We need to replace the first part of the renaming list (the list is in the curly brackets). The preview window now looks like this. Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? rev2023.5.1.43404. Does the 500-table limit still apply to the latest version of Cassandra? Dynamic column values: defines the table columns which their header title must be dynamic. "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. The easiest way is to create some base code in M by double clicking the column header and change the name in just something. 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. Its current dataset consists of a single table with information about US states: However, this is not enough. The second parameter, here, plays the main role. This is so Power Query will generate the Table.RenameColumns() step for us and we will make minor tweaks. if it would have been #"Changed Type", then: The first #"Changed Type" is generated automatically, so you need to use this name in the adjusted formula. 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. 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. F1 F2 & F3. 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. Parabolic, suborbital and ballistic trajectories all follow elliptic paths. Strangely enough, this limitation/bug reported in 2015 still seems to be the 'state-of-the-art': "When you rename a column in the Query Editor of Power BI.., it implicitly triggers the column references in your reports to be updated. If total energies differ across different software, how do I decide which software to use? 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). We are going to extract that date and make it a column, as it should be, and then rename both columns regardless of what they are called. Sadly, the built-in table visualization provided by Power BI does not support this feature, since the header titles can only have a static value: Even so, theres a way to get this feature done and thats by creating our own custom visual. Connect and share knowledge within a single location that is structured and easy to search. If you have a table with old and new names then you can use following pattern. Carl's has the same result and is a little simpler for the example I gave, however, my situation will benefit from having the rename pairs set out explicitly in a table (ie. Why typically people don't use biases in attention mechanism? 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. You can further enrich the function in case you need more control over the new column names. The largest, in-person gathering of Microsoft engineers and community in the world is happening April 30-May 5. previous 2 = measure. Unfortunately, it doesn't seem so. Absolut same issue - would be good to have a solution in here. F1 F2 and F3 fields. The first 5 steps give my my column value (the publication year +1). The article was inspired by a request from a client who had issues exporting data from its data warehousing program to .csv files. 1- Assign index to each rows using Index column under Power Query Editor. (adsbygoogle = window.adsbygoogle || []).push({}); If you want to achieve this with in Direct Query then you have to prepare your datasets same like Import Mode final Datasets. previous = measure. Which language's style guidelines should be used when writing code that is supposed to be called from another language? Asking for help, clarification, or responding to other answers. Right click on column to Unpivot: Right click on the column you want the data to be pivoted & click on unpivot Other Columns. Table2). In the last 2 steps, we renamed both columns and cleaned values in the. Every time program had exported the data, column names exported with a random number of spaces. 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. Infact, under column values it is showing error #This field can't be used since it is invalid. No overhead. Lineage is a part of DAX mechanics that enables us to use tables as filter arguments for the CALCULATE function. Stating the original problem according to Ivan's solution, here goes. Finally figured it out using the following function, Table.TransformColumnNames(table as table, nameGenerator as function, optional options as nullable record) as table. Receiving an adequate list argument for the Table.RenameColumns() function was the harder part of development. {} is a syntax for creating a list object, and inside of that object, we added old and new column names separated with a comma. Variables are used in almost every measure you will create. Dynamic header titles text will be defined based on a value (the language) selected by the user on a slicer. English version of Russian proverb "The hedgehogs got pricked, cried, but continued to eat the cactus", Get the names of the 5 rightmost columns of the table (which should give you a list of 5 strings, all of which end in. As pointed out by Imke, you can feed this issue . i am exactly looking for this solution. The following M code will give us the old and new, cleaned column names. I have released my first template app which is Free to download here: http://bit.ly/2othNWm and one trick I use is to change column names based on parameters. Let's get started and learn how to rename columns like a pro in Power Query. Then, click the small drop-down arrow located to the right of the column name. One approach using Power Query might be to implement some steps like: The code below basically tries to do the above. Name 2 will always be the second column.). 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. 1. Thank you. 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]. How do I stop the Flickering on Mode 13h? Dynamically updating column names based on a mapping tablecould be super useful if only the output workednot just with flat Excel tables, but alsowith Power BI reports and Excel pivot tables! Renaming Column Headers. Find out more about the April 2023 update. Does the 500-table limit still apply to the latest version of Cassandra? How about you take one of our courses? That isnt a problem and youll see why in a minute. Plus using the MissingField.Ignore parameter with Table.RenameColumns means that it will only change the selection of columns I want to rename in my production query, the rest will remain unchanged. Is there any way to dynamically change column name from its values. 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