Power Query Variable

Power Query Variable

I created a variable in my package to hold the query for the SSIS lookup which referenced the project parameter in the where clause. Guide to using PowerShell's $_. Its purpose is to make it easy to load data into Excel (either directly into the worksheet or into the underlying data model) from a. Goal 1: Grouping and Total Sum Column. 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. One way you could do this is by creating a calculated column that concatenates two fields to a single value. This video shows how to set up a query so that all future data will be integrated. A formula that both combines text and takes a. Two of the new features in the Power BI Desktop April Update are Query Parameters and Power BI Template files. Value(identifier as text) as any About. The Microsoft Power Query functions in the table that follows are helpful text functions to know. When building web pages, it is often necessary to add links that require parameterized query strings. The solution shared under the heading of "Solution for MS Excel 2010 and higher versions" is the Power Query solution and this can be tweaked to transfer the data to another workbook. Word provides a tool to help you specify which members of your mailing list are included in a mail merge… Query Options. Power BI is a separate application to Excel. Copy and paste the following SQL to your SQLyog free Community Edition query window. By default, you can only filter on a single field with the query string. Out of them, I like dotnet way the most. April 14, From Excel select the Power Query tab, then click the From Web button. For illustration purposes, I create a Power Query to invoke an Azure ML web service that forecasts various. Go-to tools for many are PivotTables or formulas as SUMIFS, SUMPRODUCT, AGGREGATE and the like. 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. Every so often you find a hidden gem, something so valuable, just hiding there in plain sight. This involves creating a list of lists in Get and Transform then converting it back to a table. 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. Power Query: How to iterate over a list. Power of Variables in DAX. Our first step starts by grouping the rows in our table using some criteria. Here's the Power Query code:. In Power Query this is a useful and common option. Recently, I found out that I LOVE the using Variables with in a DAX expression. 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. This video shows you how to pass parameters to SQL Queries statement using Power BI. com August 16, 2018. Accumulate is one of most undocumented and most underestimated functions in Power Query 'M' language. (or above code is not working) Please help. With Power BI, all you need to do is use the query editor. In this post I would like to continue explanation of this very interesting iterative function. Ragged/Variable Depth Hierarchies R a g ged h i e r a r c h i e s of indeterminate depth are difficult to model and query in a relational database. 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. I'll do this by showing you an example of solving a problem that would be fairly complex using traditional ETL tools like SSIS (SQL Server Integration Services) but made simple with Power Query. Query 4 -- A parameterized query to list of customers in a zip code that is specified dynamically. Advanced Analytics (3) Big Data (4) Community (7) Excel (15). Within Power BI Desktop, parameters are currently added during the query and modeling phase of your Power BI data model development. We will be discussing on how to work in query editor. Again this is the power of Visual Workflow, we will create an app without using a single line of. This in turn can be used to derive the relative path of /Data (so long as it's within the same folder or a subfolder of the Power Query workbook's directory). Summary: Learn how to inspect variable values by using the Windows PowerShell debugger. Today I want to explain how you can pass parameters to a SQL Server stored procedure. Big Dater – Finding the biggest cheaters with Power BI 25th of October, 2015 / Peter Reid / 4 Comments Hacking of commercial enterprises is never a good thing and in no way would I condone the dubious logic that was the basis behind the hack and release of the Ashley Madison database. Change "Null" […]. So, check out Brian's webinar to learn more and if you want an intensive course, our Power Query for Business is just what you need. next time if you want to load the data of deptno 20 u have to create the mapping again which is fom the scratch again. Recently, I found out that I LOVE the using Variables with in a DAX expression. And if you want to follow along, […]. We will then open the Advanced Editor and build out our Power Query M Language code. If you have any other fun Power Query tricks for storing variables, please share by posting a comment below. The Advanced Editor in the Power Query Editor has no built-in function to capture changes made to the query. You can see this M code by going to the Advanced Editor from within the power query editor. The solution shared under the heading of "Solution for all versions of MS Excel" is the MS Query solution. 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. Year ago I wrote a post Transform table column using own function in Power Query. 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. Power Query lets you perform a series of steps to transform your Excel data. In complex scripts, you can also search in all your variables. Two of the new features in the Power BI Desktop April Update are Query Parameters and Power BI Template files. ex: u have created a mapping to load the data of only deptno 10 into the target. 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. Introduction Modern self-service BI products like Power Pivot in Excel and Power BI Desktop are often used to mash up data from different sources. In this post, I'm going to explain about a function that is really powerful and is not yet listed in the graphical interface. Put the WQL query in a variable. Power Query. With Power Query the business analysis along with the BI developer can combine and shape data from a wide variety of data sources in a quick and easy manner. Is it possible to use a formula to limit the years of information that a Power Query pulls into a workbook from a SQL database? something like: year field is >=YEAR(TODAY())-5 So that the query for year 2017 drops off 2011 pulling in only information from years 2012 to 2017, in the year 2018 drops 2012 and so on. 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. The first, and easiest solution starts with a simple Split Column transformation on the Field2 column. This video shows you how to pass parameters to SQL Queries statement using Power BI. You can't influence #shared in Power BI Desktop/ Power Query by writing code, but you can create new queries, which then automatically belong to #shared. Here's the Power Query code:. 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. Our first step starts by grouping the rows in our table using some criteria. The Query Editor is a tool included with Power Query that lets you create data queries and formulas in Power Query. Next, rename the query in the Query Settings pane to Employee Data then clickClose & Load on the Home tab. So my question is: does it make any difference (DAX engine efficiently-wise) to rewrite your first measure: Measure = VAR yesq =. Make Office 365 and Dynamics 365 your own with powerful apps that span productivity and business data. 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. Watch this video see the steps, and the written. Im Folgenden soll anhand einer. When developing Power Query solutions for others to use, or when needing parameters that can be changed easily (e. This is possible with Power Query's programming language, which is M. Setting a variable from an AD. Power BI makes this easy, but what if you now need a column you originally omitted? Or, to remove unwanted columns. 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. Data Input: Excel table sucked into the data model via Power Query. Its purpose is to make it easy to load data into Excel (either directly into the worksheet or into the underlying data model) from a. Part of Excel Power Pivot & Power Query For Dummies Cheat Sheet. function (optional value1 as nullable any, optional value2 as nullable any, optional precision as nullable any) as nullable any. What I would like to do is take the end of the URL token, "arenano01", and assign it as a variable and then insert this variable into a created column. Click the Group By button and set it up using the following criteria:. Filter on multiple fields. you may try like: declare @word table (tableName varchar (50)). Now double click on the new field on the right and insert the M-Code of the Power Query query here. Value containing numbers only which character. Power Query - Close & Load Options. This code was written and tested in Excel 2016. Many times, Excel users need to show their data in a summarized way. Code branching in M (Power BI Query) My understanding is that a given step is only executed if it is needed to return the final result. 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. Perhaps the most common example of a preprocessor limitation that surprises newcomers is Sass’s inability to define variables or use @extend inside a media query. In case the headers are different, Power Query will combine and create all the columns in the new table. The solution shared under the heading of "Solution for MS Excel 2010 and higher versions" is the Power Query solution and this can be tweaked to transfer the data to another workbook. I can see there is this edit variables button in Power BI Section - but apparently it is only for SAP BW's. Para ver una versión actualizada de esta entrada visita el blog de mi nuevo sitio www. Setting a variable from an AD. It was fun to experiment with List. Copy and paste the following SQL to your SQLyog free Community Edition query window. In our sample example, we will have a simple flat table with 3 columns: Country, Variant, Clicks. But if the similar problems arise again and again, a more efficient reusable solution might become very attractive. Contents to access the URL that you enter, and then another function based on the content-type of the URL. But what if I want to iterate over a list and need to parameterize it with today's date?. As we can see, the conditional column and the merged table both produce the same results. Data and Analytics with Dustin Ryan. Query 4 -- A parameterized query to list of customers in a zip code that is specified dynamically. ) to automate your ETL solutions. Power Query is one of my favorite tools of the Power BI suite, the self-service BI offering of Microsoft. Power Query was designed so that you do NOT have to know how to code to use it. I have built a PowerQuery query which queries a webservice for certain data and manipulates it in the right way. Power Query utility library with a functional twist. " In this build we're only supporting entity variables. Creating a Date Dimension with a Power Query Script Chris Webb has previously blogged a similar approach, but I thought I'd shared my own version of a Power Query function that generates a table of dates that could be used to create a Date Dimension. PowerQueryFunctional. There is a difference between x and X. When you define a function inside another function, the enclosed function can access the variables of the outer function. Pass an Excel Parameter to Power Query. Luckily, PowerShell gives us a few different ways to make that happen. We will be using JSON as the query file type. Power Query also provides you with the ability to search for public data from sources such as Wikipedia. In this article, we will learn how to use power query to group data. 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 Query - Close & Load Options. 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. Power BI, Power Pivot and Power Query are excellent tools for this type of reporting. The following post was written as the reply to a great question Dane asked in the Comments section of the Power Query's Unpivot Function post I wrote back in August 2014. Power BI and Power Query. Note that my R skills are very basic, so please don't use this post as an example of top-notch R. Application variables store persistent data about an application, or ruleset. … [Keep reading] "Use Excel, PowerQuery and Yahoo Finance to manage your Portfolio". They both follow the same approach. In this blog post, we will take a deeper look at the new capabilities and scenarios that these two features enable in Power BI. com wrote this over 2 years ago and it was last updated over 2 years ago. Create Custom Functions. upper function power query. 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). In this article, we will learn about the text. My only hope is that the Power Query/Power BI group goes and wacks the listdata. Power Query has. Did you ever get your Power Query working in Office 2016? The message you posted above is one that you will get when trying to login to a Salesforce org that has the TLS 1. Power Query - load from Excel file with variable sheet name I have a Power Query set up to load data from local Excel file (. I was delivering training yesterday in Sydney and one of my students (Stephane) asked me how to pass a parameter from Excel to Power Query. Power Query List Consecutive Letters. 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. I then added a query with this table as its source by using the From Table button on the Power Query Ribbon. There are multiple benefits of Parameters in Power BI / Power Query, but the main point is how you're essentially creating a parameter and how you change its argument (value) so easily. The Navigator will still display a list of available InfoProviders and BW queries in SAP BW/4, however no Power BI query is defined in the process. Posted in Julie, Power BI, Power Query Tagged Power Query, Power Query - convert list to table, Power Query Creating functions, Power Query Error-- Expression. Just the steps… To use the [wmisearcher] type accelerator. When you define a function inside another function, the enclosed function can access the variables of the outer function. Application variables store persistent data about an application, or ruleset. Now I need to create a query that will read the information from this table and fetch the data. The scenario - source data sheets that are structured differently! Does Power Query sometimes seem too rigid? It's great for defining a sequence of transformations to clean your data but requires the incoming data to be in a consistent format. My goal here was to talk about how Power Query can dynamically adjust the number of rows in a table. My requirement was to remove any spaces within the text too. Getting out of “a variable nightmare. Power Query Leading Zero for variable length number I need to add leading Zero to a column for two types of values. In Power Query this is a useful and common option. It is worth spending a few minutes reading the formula, because it shows the power of variables very well. I got the original Power Query function from Ken Puls blog post Clean WhiteSpace in PowerQuery which he does a great job of removing leading, trailing or multiple spaces within text. Quickstart. I want to be able to reference a cell value in Excel for the Start and End date. So in theory, based on the condition only the "THEN" block or the "ELSE" block would be executed. In the previous posts, here and here, I explained how you can use Power BI Desktop Query Parameters for many different use cases. Plain data will automatically be converted to a table when it is loaded into the Query Editor. That causes unexpected line break after 80th symbol (if there is a space after 80th symbol) To avoid such behaviour and generate long lines it is possible to use width option:. Please keep the great series going as it fills the void in lack of good content on the M Language. The term Web services describes a standardized way of. The query letter is so much of a sales piece that you should be able to write it without having written a single word of the manuscript. 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?. Here is a way to make the connection variable dynamic. I am trying to create a reusable function in Power Query that will be used by several tables. 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. 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. upper function is. Here's the Power Query code:. The variables in PowerShell aren't environment variables but rather native PowerShell variables. I have already created the queries by adding the data from Excel Tables (Click in the Table -> Click the Data Tab -> Click From Table). You should now have two spreadsheets (It would obviously be a good idea to rename these) in your workbook. Thus, it is evaluated in the filter context in which ADDCOLUMNS is computed, i. In this post I would like to continue explanation of this very interesting iterative function. I have a feeling I am thinking about it differently though so would be great if someone can enlighten me. upper function power query. Select "Blank Query" in "From Other Sources" dropdown In the Query editor go to the "View" ribbon and select "Advanced Editor". Variables are just about the most ubiquitous element inside any PowerShell script. We have also learned what Keep Rows and Remove Rows in Power BI are and implemented all these step by step. Power BI makes this easy, but what if you now need a column you originally omitted? Or, to remove unwanted columns. Power Query Primer Power Query is an Excel add-in, and among the range of tools that comprises the editing part of Power BI, it is normally the tool you would start with when creating your shared reports. If the data is available for that column, it will be shown, else it will show null. This video shows you how to pass parameters to SQL Queries statement using Power BI. Data types. So weit, so gut. 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. But what if I want to iterate over a list and need to parameterize it with today’s date?. 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. In this article, I will be covering how to create loops/iterations in Power Query. Power Query - Close & Load Options. I'll do this by showing you an example of solving a problem that would be fairly complex using traditional ETL tools like SSIS (SQL Server Integration Services) but made simple with Power Query. upper(string as nullable text) as nullable text. Power of Variables in DAX. Power Query is an amazing data tool for Excel! It is built by Microsoft to help you import, transform, and automate your data processes. Powershell: check variable for null Posted in Microsoft , PowerShell , Work If you are working a lot with PowerShell parameters and inputs you need to check if variables have the right value and are not "null". By default, you can only filter on a single field with the query string. The variable can be of any supported Power Query type. There are times when we want to do things that are not built in the user interface. Create Custom Functions. function (optional value1 as nullable any, optional value2 as nullable any, optional precision as nullable any) as nullable any. Because Query doesn’t include built-in. In the list of available add-ins, select Power Query and click OK. Variable de procédure stockée & Power Query pour les moustachus Le sujet est résolu. For Power Query, you can adapt the approach described in the solution above and use Excel formulas to dynamically determine the path of the Power Query workbook. Hey, Scripting Guy! Occasionally I have to perform a quick query of Active Directory, but I do not want to write a complicated VBScript or Windows PowerShell script. Sheet1 that has the Excel table with the date range values; Sheet2 that has the results of the Power Query query. Power BI - Dynamic TopN + Others with Drill-Down Error-handling in Power Query Refresh PowerBI Datasets using PowerShell and Azure Runbooks Using Power BI Desktop Direct Query with Parameters Storing Images in a PowerBI/Analysis Services Data Models Categories. Query Editor Group Directory Structure. Editor's note: The following post was written by SQL Server MVP Rafael Salas Creating Power Query Functions. Before we start with environments: Expressions and variables. Checkout my overview of Power Query to learn more about it. Using the URL in Power Query. This is possible with Power Query's programming language, which is M. 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:. The power of the Query Editor in Power BI is more than that it allows you to load data from a variety of sources, transform that data to meet your analysis needs, create new columns of calculated results and define special views of the data. Here is a way to make the connection variable dynamic. Our first step starts by grouping the rows in our table using some criteria. Upper function returns the uppercase of a text value. With Power BI, all you need to do is use the query editor. What matters at the end is only how you call the query (custom function) = Orange rectangles. The receset variable will represent a new record set through which we will give the command to perform our Excel SQL query using the connection we’ve established. 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:. I have a working SQL query and am trying to make it dynamic by pulling information from a cell in the spreadsheet. Flags store boolean data and can be set. 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). M-Code in SSIS. In complex scripts, you can also search in all your variables. The power of the Query Editor in Power BI is more than that it allows you to load data from a variety of sources, transform that data to meet your analysis needs, create new columns of calculated results and define special views of the data. One of the unique characteristics of M is it takes data. Powershell: check variable for null Posted in Microsoft , PowerShell , Work If you are working a lot with PowerShell parameters and inputs you need to check if variables have the right value and are not "null". You should now have two spreadsheets (It would obviously be a good idea to rename these) in your workbook. Power BI allows you to use parameters to make your reports dynamic. 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. For illustration purposes, I create a Power Query to invoke an Azure ML web service that forecasts various. 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. This works well (written in blank query): let is_emergency = (color as text) => if color. Writing Custom Functions in Power Query M One of the most powerful features of M is that you can write custom functions to re-use part of your code. There is a difference between x and X. Lets begin by making a new blank query by clicking on the bottom half of the New Source button on the Home ribbon. Welcome to PowerSource. We will be using JSON as the query file type. One possible point of confusion is that WQL uses different syntax for operators such as "=", whereas PowerShell uses "-eq". On the surface, it’s a mild-mannered report writer that performs light-duty tasks with little fanfare. We use variables in powershell without declaring them. A formula that both combines text and takes a. This works well (written in blank query): let is_emergency = (color as text) => if color. This article will interduce you to webservices and how you can interact with them using PowerShell. Power Query with Input Variables from. Application variables will follow later. Make Office 365 and Dynamics 365 your own with powerful apps that span productivity and business data. Here are some tips and tricks to help you get the most out Power Query. This post shows how to use Power Query to summarize data (using Group by). Yes, Powershell is pretty good as inferring the type of variables based on the actual values, but just in case you want to limit script input. ACM Transactions on Sensor Networks, 2009. 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. They both follow the same approach. So for advanced use of Power Query you would require to work with M directly. il y a 6 jours et 22 heures Sophie Marchand. Later, Chris M. 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. Think "class variable. Excel 2016 includes a powerful new set of features based on Power Query technology, which provides fast, easy data gathering and shaping capabilities and can be accessed through the Get & Transform section on the Data ribbon. Each variable within a let expression must have a unique name, but Power Query is fairly flexible about what you call it. 4 thoughts on " Power Query M Primer (Part 4): Variables & Identifiers " Richard April 10, 2018 at 4:34 pm. Get a List of File Names from Folders & Sub-folders. 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. This is exactly what I needed for a problem I was having. 4 thoughts on “ Power Query M Primer (Part 4): Variables & Identifiers ” Richard April 10, 2018 at 4:34 pm. Query("dsn=AS400", "select * from libm61. Get & Transform (Power Query) hard-codes a number the first time you create the query, and if that number is exceeded, new data will just disappear. @aroyappan. Note: this tutorial assumes you already know how to write Excel IF, IF(OR and IF(AND formulas. We will be using JSON as the query file type. Otherwise open it in a simple text editor and paste it into the Advanced Editor of Power Query or Power BI Desktop. The Power Query M formula language is optimized for building highly flexible data mashup queries. You May Also Like the Following Power Query Tutorials: Combine Data from Multiple Workbooks in Excel (using Power Query). Power BI, Power Pivot and Power Query are excellent tools for this type of reporting. Today, I want to talk about a technique for. I have a question regarding the scope of variables: The declaration of variables can be created recursively so only variables that are needed in the next step are in scope and available. Just the steps… To use the [wmisearcher] type accelerator. Then I set the lookup property to use that query. Sample files. Hi everyone, first time authoring here and looking to pass on one of the neat, but less intuitive aspects of data management in Excel. Insert M Code Power Query Source in the Data Flow. They can store much more than just text. Data and Analytics with Dustin Ryan. Call the function with the parameters described under "Code parameters". ) to automate your ETL solutions. The set of "Power" components (Power Query, Power Pivot and Power BI) all sound a bit like the marketing guys won the naming battle again and don't really help explain the technology nor where they fit so I avoided it for a long time. Creating the initial query. Is it possible to use a formula to limit the years of information that a Power Query pulls into a workbook from a SQL database? something like: year field is >=YEAR(TODAY())-5 So that the query for year 2017 drops off 2011 pulling in only information from years 2012 to 2017, in the year 2018 drops 2012 and so on. There are times when we want to do things that are not built in the user interface. 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. Note: this tutorial assumes you already know how to write Excel IF, IF(OR and IF(AND formulas. Query Editor Group Directory Structure. I tried using input dialogue box so that I can dynamically give the name for the created table. Today, we are pleased to announce eight new data transformation and. Use VBA to automate Power Query in Excel 2016 Are you familiar with Power Query for Excel 2010 & 2013? In Excel 2016 you can now use Macro Recording and Object Model (VBA, PowerShell, C# etc. This is our starting point for two different solutions. Get a List of File Names from Folders & Sub-folders. 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. There is one time though when you don’t want to use it. 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. Code branching in M (Power BI Query) My understanding is that a given step is only executed if it is needed to return the final result. Power Query lets you perform a series of steps to transform your Excel data. Introduction Modern self-service BI products like Power Pivot in Excel and Power BI Desktop are often used to mash up data from different sources. The SqlServerObjects table variable referenced by the three source table variables is nothing more than the following: = Sql. My goal with this post is to show you how simple yet powerful Power Query really is.