Power Query Variable

Today, we are pleased to announce eight new data transformation and. There are three basic steps to using the [wmisearcher] type accelerator. This is possible with Power Query's programming language, which is M. A query language for your API. I have written previous articles about this principle at PowerPivotPro. As you can see below, the data had been loaded in the power query editor. There are many Power Query formulas you can. ) The Problem. Functions in Power Query have access to at least two environments, the global environment visible via #shared and the local environment, which is the union of parameters and local variables. Nov 21, 2016 · Convert each Criteria Table to a single Text Item using the Record. In addition, that post do not cover another very important. If you read DAX queries generated by Power BI, you will probably notice that the variables are often defined in the DEFINE section rather than after an. However, if we needed to add another freight company, the table approach would allow the user to add the details to the existing table and refresh the data without needing to make any changes to the Power Query steps or even open the query editor. Jun 30, 2019 · Yes, It can definitely remove the data. Select "Blank Query" in "From Other Sources" dropdown In the Query editor go to the "View" ribbon and select "Advanced Editor". This article describes basic rules for working with M, which is a language for queries in Power Query (Get and Transform) as well as in Power BI. There is a difference between x and X. This query looks at a Date (Today's Date) and checks if it is current, historical or upcoming relative to set start and end dates including nulls. For that purpose, how will I call value from “input dialogue box” to sql “Execute Query” ?? URGENT HELP REQUIRED!!! Thanks in advance!!!. When you create a power query in Excel to import or transform your data, Excel is creating the query behind the scenes in a language called M. Call the function with the parameters described under “Code parameters”. This variable can than be used in your flow. I'll also discuss the differences between web services and full SQL db access and how migrating to web services might affect your query access. Power BI tip: Parameters table for Power Query queries to. In this post I will show you how to query both user and computer environment variables using Powershell. I looked everywhere for a product that could easily integrate to a specific web portal backend api via JSON, and after many attempts the ZappySys product was the only solution that could give. According to stats, it is quite popular topic, and I’m not surprised. Power BI Query Function Example. Power Query lets you perform a series of steps to transform your Excel data. M-less Solution. Power Query simply converts the JSON to a table and you're good to go. What if multiple PQ queries point to the same data source that changes location or gets updated? How can I avoid. I spent a lot of time to search for a good article over the internet that explains how I could pass parameters to a. There you can see a new task in the SSIS toolbox: Power Query Source. We can leverage parameters and variables to re-use a value within a mapping or mapplet. Seeing that this is not an efficient use of my time, I decided to spend more time to figure out a way to make a variable that would be my file location for all my queries. Power Query if statements are a bit different to writing IF formulas in Excel, but once you get the hang of them they're pretty easy. Firstly create a named range to reference. The strategy of Microsoft self-service BI (the very very short version) is to empower people to to analyze and report on data without the direct evolvement of IT-professionals. Requirement: Use CAML Query with PowerShell in SharePoint Online CAML is an XML based query language, It stands for Collaborative Application Markup Language and used to query against items from SharePoint lists and libraries. Power Query List Consecutive Letters. Power Query was designed so that you do NOT have to know how to code to use it. Step 1: Get the Data into Power Query. Note that the SQL needs to end with semi. Nov 13, 2018 · The Power Query function below will remove any spaces that I have in a text field. I don't know if it's a local issue but I can't use temp table or table variable in a PP query (so not in a stored procedure). Query("dsn=AS400", "select * from libm61. What if multiple PQ queries point to the same data source that changes location or gets updated? How can I avoid. Every so often you find a hidden gem, something so valuable, just hiding there in plain sight. Pass an Excel Parameter to Power Query. The variable can be of any supported Power Query type. You can also reference query parameters in DAX expressions and you can use query parameters in report filters. My goal here was to talk about how Power Query can dynamically adjust the number of rows in a table. Firstly create a named range to reference. Functions in Power Query have access to at least two environments, the global environment visible via #shared and the local environment, which is the union of parameters and local variables. M-Code in SSIS. Once the variable has been assigned a value, that value cannot change during the execution of the RETURN portion of the formula. Our first step starts by grouping the rows in our table using some criteria. Lets begin by making a new blank query by clicking on the bottom half of the New Source button on the Home ribbon. in: output! Yes, in actually means out! just named as in. ZappySys SSIS PowerPack is a sensational product, with a great support team. frame , row , extract I am trying to extract the first record for each chunk (layer) of my data. Mapping parameters and variables in Informatica are very useful. I have already created the queries by adding the data from Excel Tables (Click in the Table -> Click the Data Tab -> Click From Table). Microsoft decided to use the term Parameter when designing Power Query. Once multiple tables are imported into the model, users create relationships among them so that they can easily slice and dice data using any column from related tables. The Microsoft Excel POWER function returns the result of a number raised to a given power. Our first step starts by grouping the rows in our table using some criteria. Net scripting. A query language for your API. If you use Power BI Desktop and Query Editor, do you know the true power of M? As you probably know, the Query Editor in Power BI is a powerful GUI that generates M, also known as the Power Query formula language. Power Query Leading Zero for variable length number I need to add leading Zero to a column for two types of values. That is where power query functions help. Data types. Diagnostics. According to stats, it is quite popular topic, and I’m not surprised. Can anyone tell me how to create and pass a variable in Power Query? Here's the file I'm trying to retrieve but I'd like the file name to change based on the newest file in the folder. To finish, we need to add parameters to the UDF. How to Create a Microsoft Query in Excel. Consider this sample data You can filter based on either of the column and in fact, powerquery will show you the relevant filter. Power Query is the best thing to happen to Excel since Tables were introduced in Excel 2007 **Updated May 2018** When developing Power Query solutions for others to use, or when needing parameters that can be changed easily (e. Oct 01, 2014 · Many excellent BI bloggers have covered creating a basic date dimension using Power Query. If you are familiar with power query, then you should feel write at home with Power BI. In this article, Robert Sheldon demonstrates how parameters can be used to substitute connection information, query filters, or even calculations within the query. Wichtig vor der Nutzung der IF Funktion (und aller anderen Power Query Funktionen) ist, dass sie case sensitiv sind (siehe hierzu auch Text Funktionen in Power Query). Data cleanup and transformation is one of the main purposes of the PowerQuery. The illustration I used to demonstrate this was an amortization schedule. Microsoft Power Query for Excel is an Excel add-in that enhances the self-service Business Intelligence experience in Excel by simplifying data discovery, access and collaboration. Now double click on the new field on the right and insert the M-Code of the Power Query query here. Power Query has. Power Query was designed so that you do NOT have to know how to code to use it. I have written previous articles about this principle at PowerPivotPro. Accumulate is one of most undocumented and most underestimated functions in Power Query 'M' language. The Query Editor is a tool included with Power Query that lets you create data queries and formulas in Power Query. Please keep the great series going as it fills the void in lack of good content on the M Language. That is where power query functions help. Oct 15, 2019 · Power Query Excel data from Variable / Dynamic Worksheet Hi All, I'm using power query to pull data from a weekly file via filepath and name in cell reference. Every day, IT pros around the world are using IBM Power Systems to drive innovation, and many of them are running IBM i. The variable can be of any supported Power Query type. Environment: W7 enterprise desktop 32 + Office 2012 32 + PowerPivot 2012 32 Simple example: declare @tTable(col1 int). Create a new query in the query editor and replace the existing code with the copied code (Strg+A, Strg+V) Create another new query (named "DAXVariableMeasureCode") where you paste the DAX-code of the measure that contains the variables. Power Query is also available in Power BI. job chaining in jenkins is the process of automatically starting other job(s) after the execution of a job. Mar 20, 2015 · Power Query makes it very fast and easy to merge two tables together with just a few clicks. A variable is a unit of memory in which values are stored. If you have any other fun Power Query tricks for storing variables, please share by posting a comment below. However, I think that old post is quite complex and too long. Our first step starts by grouping the rows in our table using some criteria. This step will run the query that the user had typed into a text input box before triggering the flow. This argument provides a crucial hint for what formulas you can use to summarize text values. I have written previous articles about this principle at PowerPivotPro. In fact, the Power Query versions of IF OR, and IF AND are even easier than the Excel equivalents. 1 Sparks Avenue, Toronto, Ontario, Canada M2H 2W1. Now that we know how to link to MS Query, how to add tables to a query within MS Query, how to add fields to the query, and how to return data to Excel, we can expedite building this query. This is possible with Power Query's programming language, which is M. (yes, we are finally at the each keyword itself!) each just minimizes the syntax for creating functions, by providing a default input variable name, "_", and removing the need for the => or anything else. Custom Lists Generator in Power Query and Power BI. C/C++ style variables apply here // Everything till the end of line. But what to do when you really want to know what is the variable type that got created? We can't go by evaluating the value assigned to the variable but there is a simple way the *Power*Shell. But when your data…. To finish, we need to add parameters to the UDF. There have been times when I've gotten a warning from PQ about refreshing a query with this type of setup - Mistella Apr 4 '18 at 18:22. Field Power Query Function. Re: ORA-01008: not all variables bound on SQL Query Region John Edward Scott Jul 21, 2006 11:49 AM ( in response to MikeOBI ) Excellent, good to know I'm not losing my marbles just yet ;) I'm not entirely sure why it breaks with that error, the parser must be interpreting the double-dash as a line comment and then fails to parse the rest of the. Query SQL and store result as a variable Welcome › Forums › General PowerShell Q&A › Query SQL and store result as a variable This topic has 8 replies, 4 voices, and was last updated 4 years, 8 months ago by. For example, a PowerShell variable can contain a String object or a number object, such as an Int (integer) object. #PowerQuery - Filter a table based on another table column or list - and some Filter aha's One of my favorite features in Excel and Power BI is Power Query / M - and I just wanted to share a small trick when you want to filter a table on specific items. There are times when we want to do things that are not built in the user interface. In this step by step tutorial I will show you how to create an Microsoft Query to extract data from either you current Workbook or an external Excel file. Every so often you find a hidden gem, something so valuable, just hiding there in plain sight. Grafana custom variable. Create Custom Functions. 1 Sparks Avenue, Toronto, Ontario, Canada M2H 2W1. One of the unique characteristics of M is it takes data. Sep 19, 2017 · Hello guys, I am trying to create a table inside my sql database. This works well (written in blank query): let is_emergency = (color as text) => if color. For more information about creating parameter queries, see Use Microsoft Query to retrieve external data or Connect to a web page. Using the number you can retrieve the information and put it in a variable. Typischerweise werden Sie eine Quelldatei auf einem adäquaten Wege in Power Query importieren, die Daten dann auswerten, aufbereiten, zusammenstellen, … und dann in eine Tabelle speichern. You can also use the DEFINE command to redefine their values, or you can use the UNDEFINE command to remove their definitions and make them unavailable. Query Oracle database with PowerShell. Provide username function in Power Query - M or DAX calculated columns Being restricted to just using username() in measures (or AllowedRowsExpression) means that you cannot use the context of the current user in slicers or page level or report level filters. Honestly, it is not necessary to know this language - because most of workflow steps can be done in standard GUI and M is used in background only. When you go to Edit Query, you can choose to select a specific portion or table within the page or the entire page (by clicking on one of the yellow arrow boxes in the preview). You can even include spaces in the name, but you have to enclose it in double-quotes and precede it with a hash tag, a somewhat cumbersome naming convention (and one I. Now, when we close and load, the query results will be filtered to include only the dates defined in the variables table. In a recent webinar, Pragmatic Works founder, Brian Knight, took a deep dive behind the GUI, so attendees could learn how to do even. Variables are just about the most ubiquitous element inside any PowerShell script. Query management comes up a lot. I will extract data from an External Excel file called MOCK DATA. That information is held in a Table. Custom Lists Generator in Power Query and Power BI. (The information in this blog post is current as of the March 2014 release of Power Query. This is our starting point for two different solutions. Power Query has. Power Query M language - basic principles. Jun 23, 2016 · Power BI makes this easy, but what if you now need a column you originally omitted? Or, to remove unwanted columns. I'm breaking the "if you can put it into Power Query, do it" rule in the name of connecting with you more on DAX calculated columns than M, which is beyond where I want to go with this. Feb 28, 2019 · Power Query has a lot of built in functions, but it doesn't have a function that exactly matches the VLOOKUP in Excel – but by using the M language and other M functions we can certainly replicate some of the VLOOKUP functionality and make an even more flexible lookup function. upper(string as nullable text) as nullable text. But what if I want to iterate over a list and need to parameterize it with today's date?. Actually, over time this method could cause problems: So. To do this Microsoft has introduced Power Query (on tool of the Power BI suite). My requirement was to remove any spaces within the text too. If you have any other fun Power Query tricks for storing variables, please share by posting a comment below. Jul 10, 2014 · This article will interduce you to webservices and how you can interact with them using PowerShell. Thanks, Lee. Firstly create a named range to reference. Actually, over time this method could cause problems: So. As per Microsoft documentation, Text. Even though we're going after contents of an Excel File, we want to use the From Web menu item on the Power Query ribbon (instead of From File). My goal is to be able to use an SSIS ForEach File Enumerator to pass in the file path and have the Power Query source use that path within the M query. 8/2/2019; 2 minutes to read; In this article Syntax Variable. upper(string as nullable text) as nullable text. This video shows you how to pass parameters to SQL Queries statement using Power BI. One of the unique characteristics of M is it takes data. Query management comes up a lot. Turning the Original Query into a Power Query Function: I then copied that M onto my clipboard, and created a new power query (Power Query>From Other Source>Blank Query), pasted that M in the new query and made it into a function called fSQLSatEvent by adding the following code to it:. Understanding Let Expressions In M For Power BI And Power Query May 22, 2016 By Chris Webb in M , Power BI , Power Query 5 Comments When you start writing M code for loading data in Power Query or Power BI, one of the first things you'll do is open up the Advanced Editor for a query you've already built using the UI. A little! Passing a parameter or variable into Power Query seemed like a strange idea. Power BI makes this easy, but what if you now need a column you originally omitted? Or, to remove unwanted columns. Power Query is an add-in to Excel 2010 and 2013 and is included in the Data ribbon in Excel 2016 (called Get & Transform). Setting The Query Band: I used Execute SQL Task to set the Query Band with ADO. Each part of information (name, mail, ) in an array has a number. Paste in the URL in the correct format mentioned just above. Declaring Variables. With Power BI, all you need to do is use the query editor. Create a new query in the query editor and replace the existing code with the copied code (Strg+A, Strg+V) Create another new query (named "DAXVariableMeasureCode") where you paste the DAX-code of the measure that contains the variables. download jenkins pass variable between jobs free and unlimited. We have always used Excel as a presentation layer to import data from SQL Server for analysis. Yes, It can definitely remove the data. you may try like: declare @word table (tableName varchar (50)). Our data is already highly organized for us, with all tables defined as tables in Excel. Aug 25, 2017 · In Power BI, the dashboarding and reporting tool, you can use R to filter, transform, or restructure data via the Query Editor. Variables can have spaces in their names but use the Notation #"Variable Name" The in clause declares the rendered results. Solved: Hi, I'm trying to pass a variable created in powerapps, to a flow I have created. Sometimes this data is very well prepared beforehand and you can use it as it is but it is also very common that you need to prepare and transform the data on your own. Mar 15, 2018 · Query parameters enable users to define parameters and make parts of their reports and data models (such as a query filter, a data source reference, or a measure definition) dependent on one or more parameter values. How to combine multiple tables with Excel Power Query. For instance you can write this value to an excel document or to a sharepoint list (create sharepoint list item action). Allow runtime parameters in Power View and/or Power Query PowerView does not take input parameters at run time. You can read more about how to re-configure a step in Power BI / Power Query from this blog post. As a data nerd, I've been having a lot of fun pulling data sets off the web and mashing them up. Sample files. Here is the formula: variables. Note: this tutorial assumes you already know how to write Excel IF, IF(OR and IF(AND formulas. The other option would be “Single Query from Variable”. So in theory, based on the condition only the "THEN" block or the "ELSE" block would be executed. With the query parameters, users can define one or multiple parameters to be used in their queries. Creating and using Dynamic Query Parameters as a Filters in Power BI Report Scenario: If you want to allow the end users to Filter and view the Sales in their specific Sales Region data, instead of displaying all regions, we can do it by creating dynamic Parameter in the Report. A variable is a unit of memory in which values are stored. But what if I want to iterate over a list and need to parameterize it with today’s date?. A little! Passing a parameter or variable into Power Query seemed like a strange idea. So in stead of. When you click on this a script editor will show up allowing you write your own python script with one very important instruction, the current dataset is saved inside a variable called dataset. upper(string as nullable text) as nullable text. You should now have two spreadsheets (It would obviously be a good idea to rename these) in your workbook. One of the unique characteristics of M is it takes data. Dears, please could anyone help me with the following? As usually when asking on forums - I'm. These posts let Power Query users learn and share best practices (tips & tricks) that solve real problems. I have written previous articles about this principle at PowerPivotPro. Year ago I wrote a post Transform table column using own function in Power Query. But what to do when you really want to know what is the variable type that got created? We can't go by evaluating the value assigned to the variable but there is a simple way the *Power*Shell. g #"Delivery KPI" is a variable. Add global variables to DAX I can see there is this edit variables button in Power BI Section - but apparently it is only for SAP BW's. You can read more about how to re-configure a step in Power BI / Power Query from this blog post. upper(string as nullable text) as nullable text. Net scripting. What I do *not* want to do is associate the files to my local file path such as c:\users\melissa\onedrive because another person who downloads the workbook and wants to edit or look at the Power Query setti. They both follow the same approach. Jun 30, 2019 · Yes, It can definitely remove the data. A guide to PowerPivot and Power Query no data cruncher should be without! Want to familiarize yourself with the rich set of Microsoft Excel tools and reporting capabilities available from PowerPivot and Power Query?. A formula that both combines text and takes a. #"Added Custom30"= Table. (The information in this blog post is current as of the March 2014 release of Power Query. Google Sheets Query Function Master the weapon of mass laziness. Aug 09, 2019 · Select any cell inside that table, click the Power Query tab and choose From Table. Change "Null" […]. Sample files. To create Power Query formulas in Excel, you can use the Query Editor formula bar, or the Advanced Editor. Start Blank Query. Power of Variables in DAX. Our data is already highly organized for us, with all tables defined as tables in Excel. download grafana custom variable free and unlimited. To display the value of a variable, simply enter the variable. You can learn more about query parameters in this blog post. The other option would be "Single Query from Variable". Power Query was designed so that you do NOT have to know how to code to use it. For example, {1, 2, 3} has a fixed length of 3. Mar 23, 2014 · Get S&P 500 historical prices with Power Query and Yahoo Finance Posted on March 23, 2014 by vignesh1985 Built an Excel workbook to get Coefficient of variability and few other stats for 2012-2013 using data from yahoo finance and wikipedia using power query the other day. Change "Null" […]. The other option would be “Single Query from Variable”. ( 11:38 ) Declare and Insert Variables into M Code for Report. Creating a Power BI data model is essentially then same as creating a power query data model. While VBA allows a great deal of flexiblity in declaring your variables, this flexiblity can easily lead to poor coding practices. Power BI allows you to use parameters to make your reports dynamic. So then this created column will have the dynamic variable for each respective data set. On an Excel worksheet, click a cell anywhere in an external data range that was created with a parameter query. The data looked similar to the following table:. Turning the Original Query into a Power Query Function: I then copied that M onto my clipboard, and created a new power query (Power Query>From Other Source>Blank Query), pasted that M in the new query and made it into a function called fSQLSatEvent by adding the following code to it:. Power Polisher, 6-inch Dual Action Random Orbital Car Buffer Polisher Waxer with Variable Speed, 3 Foam Pads for Car Polishing and Waxing Price: $99. Jun 19, 2018 · Note: Power Query doesn’t operate like Excel formulas, and so the table won’t expand or shrink the number of rows until you right-click > Refresh. With Power BI, all you need to do is use the query editor. In my last post I outlined how to iterate over a list in Power Query. The Power Query M formula language is optimized for building highly flexible data mashup queries. There are 2 ways to create an M function: The manual way - where you need to manually step into the advanced editor to transform a query into a function; The assisted way - where Power Query provides you with a framework to create functions instead of having to deal with the M code. what are these two programming blocks: let: definition of all variables. Customers where Custome. Value(identifier as text) as any About. Otherwise open it in a simple text editor and paste it into the Advanced Editor of Power Query or Power BI Desktop. #"Added Custom30"= Table. How to Write Valid URL Query String Parameters. There you can see a new task in the SSIS toolbox: Power Query Source. where variable is the name of the substitution variable whose definition you want to view. A variable is a unit of memory in which values are stored. Power Query is a deep and powerful tool that lives inside of Excel. Jun 19, 2018 · Note: Power Query doesn’t operate like Excel formulas, and so the table won’t expand or shrink the number of rows until you right-click > Refresh. Provide username function in Power Query - M or DAX calculated columns Being restricted to just using username() in measures (or AllowedRowsExpression) means that you cannot use the context of the current user in slicers or page level or report level filters. Nov 18, 2017 · When you create a power query in Excel to import or transform your data, Excel is creating the query behind the scenes in a language called M. The reason for this is two-fold: the first is because I was used to it, the second was because the built-in Parameters are. Click the Group By button and set it up using the following criteria:. The language used to create those formulas is the Power Query Formula Language. While migrating a power query solution across environments (Dev to UAT to Prod) changing connection variables for each power query is a tedious task. It is not straightforward to pass parameters to the SQL Queries statement in Power BI Desktop. The language used to create those formulas is the Power Query Formula Language. For my inaugural Power Query post, I’ll show how you can get data from the Twitter API, specifically the Twitter GET search/tweets method. This is possible with Power Query’s programming language, which is M. I currently have a table that is adjusted via some variables based off queries. Otherwise open it in a simple text editor and paste it into the Advanced Editor of Power Query or Power BI Desktop. Dec 16, 2016 · Power Query also provides you with the ability to search for public data from sources such as Wikipedia. Power Query is built into Excel 2016, but you can install it for earlier versions of Excel as an add-in. This article describes basic rules for working with M, which is a language for queries in Power Query (Get and Transform) as well as in Power BI. time range from & to as template variables · issue #1909. Creating the Flow: Response. Each variable within a let expression must have a unique name, but Power Query is fairly flexible about what you call it. We use variables in powershell without declaring them. Now double click on the new field on the right and insert the M-Code of the Power Query query here. Parameters, variables, conditions, criteria and arguments are all values we can change to get a different output. Part of Excel Power Pivot & Power Query For Dummies Cheat Sheet. I have written previous articles about this principle at PowerPivotPro. You can use them in your Power Pivot model as a Linked Table. I'm breaking the "if you can put it into Power Query, do it" rule in the name of connecting with you more on DAX calculated columns than M, which is beyond where I want to go with this. C/C++ style variables apply here // Everything till the end of line. I tried using input dialogue box so that I can dynamically give the name for the created table. If you read DAX queries generated by Power BI, you will probably notice that the variables are often defined in the DEFINE section rather than after an. As we can see, the conditional column and the merged table both produce the same results. What I’d like to cover in this admittedly long post is how to create Power Query functions that you can spin up and configure quickly. For that purpose, how will I call value from “input dialogue box” to sql “Execute Query” ?? URGENT HELP REQUIRED!!! Thanks in advance!!!. Es öffnet sich dann der Power Query Abfrage-Editor. There are times when we want to do things that are not built in the user interface. When you define a function inside another function, the enclosed function can access the variables of the outer function. Typischerweise werden Sie eine Quelldatei auf einem adäquaten Wege in Power Query importieren, die Daten dann auswerten, aufbereiten, zusammenstellen, … und dann in eine Tabelle speichern. Microsoft Power BI has an embedded ETL tool called Power Query that is great for basic data transformation. Power Query – source reference as filepath in cell. #PowerQuery - Filter a table based on another table column or list - and some Filter aha's One of my favorite features in Excel and Power BI is Power Query / M - and I just wanted to share a small trick when you want to filter a table on specific items. A little! Passing a parameter or variable into Power Query seemed like a strange idea. Hope you will learn from and enjoy this article. Start Blank Query. Nevertheless, PQ can replace some VBA solutions and make your workbooks macro-free. Is this possible? If not variables then what can be passed. The important thing to remember here is that an M expression can be more than just a single line of code - a Power Query query is in fact a single expression, and that's why I was able to execute one using Expression. This works well (written in blank query): let is_emergency = (color as text) => if color. Data types. Here's the Power Query code:. Conclusion DAX variables, introduced in 2015 in the Power BI engine, are now available in Excel 2016 and the Analysis Services tabular mode for SQL Server 2016. PowerBI Parameterize Connection Variables in Power Query - Learn more on the. Now double click on the new field on the right and insert the M-Code of the Power Query query here. Create a new query in the query editor and replace the existing code with the copied code (Strg+A, Strg+V) Create another new query (named "DAXVariableMeasureCode") where you paste the DAX-code of the measure that contains the variables. My goal here was to talk about how Power Query can dynamically adjust the number of rows in a table. The variable can be of any supported Power Query type.