DirectQuery: No data is imported into Power BI Desktop. The Databricks connector provides the Databricks. Also connected in this process are the dimension tables. There are eight different data reduction techniques covered in this article. DirectQuery may be slower in some cases, as it relies on the performance of the data source and network connectivity. Import - extracts the data from your database and pulls it into the Power BI Desktop. Direct Query: In DirectQuery mode, Power BI connects directly to the data source without importing the data. September 13, 2022. Filters restrict data access at the row level, and you can define filters within roles. If you are using direct query mode, then query performance is managed by the source DB, not Power BI. For each model, Power BI maintains seven days of query log data. As far as I know, if your dataset is already connected to the data source through import mode, and then you want to connect the dataset, it will automatically convert from Live connection to DQ mode, but DQ mode is not a standard DQ mode, but a live connection mode that adds the function of. You can perform multiple semantic model refreshes daily, which might be necessary if the underlying source data changes frequently. The Power BI service sends queries, and the gateway responds with query results. With DirectQuery datasets, no data is imported into Power BI. RLS only restricts data access for users. Populate the model with the historical data copied from the imported dataset. For more information about Live Connection, see Semantic models in the Power BI service (Externally-hosted models). Power BI - Connect to Most Recent File in a Folder. Once you have published your report to workspace online. Watch on. The data imported by Power Query will be saved in the Azure SQL Database; You can build a model using the. The key differences between DirectQuery and Import in Power BI are: Data storage and processing: The Import method stores the data within the Power BI file, while DirectQuery retrieves the data directly from the data source in real time. 04-28-2021 03:05 PM. Import Mode vs Direct. There are 4 connectivity modes: 1. In Power BI Desktop select the View ribbon, and then select Performance Analyzer. Performance Analyzer can help you identify visuals that affect the performance of your reports and identify the reason for the impact. If your data source is a SQL Server database then Power BI will generate SQL queries to get the data it needs; for other sources it may generate queries in other query languages. The aggregation feature interacts with table-level storage modes. Power BI Direct Lake mode is in public preview. Depending on the source, Power Query can send some of the transformations to the source. Reduces overall data refresh time: –Extracting once and re-using multiple times means you only pay the performance price for the initial slow extract once. A source group can represent imported data or a connection to a DirectQuery source. Power BI will use its own query engine to query data. So, for every visual interaction Data is refreshed. As you create or interact with a visualization, Power BI Desktop uses the imported data. When deploying Power BI Premium Capacity, you can select which region you want the data center for your dedicated capacity to be located in. The user selected tables and columns in the data model appear in the Fields list. DataSource function is the recommended way to create custom connectors for data sources that have an existing ODBC driver and/or support a SQL query syntax. This article provides a list of best practices, with links to articles and other information that will help you understand and use dataflows to their full potential. Thanks. On-Demand Loading Of Direct Lake Power BI Datasets In Fabric. See moreConvert to a Composite Model Show 2 more This article targets data modelers developing Power BI DirectQuery models, developed by using either Power BI. 1. You will need to have a dba anaylse the queries being sent to the DB and optimise the DB to support the queries. For Direct Query, data will reside in the data source and the data source undertakes the work of querying data, the duration of the. Data immediately available. In this situation I have a preference for import Mode. Power BI Get Data: Import vs. Push mode. Import the required tables into. When you interact with the report, the imported data is shown. The performance is faster if you going to use Direct Query, the problem is that possible use only database to do it. See Power BI report data sources in Power BI Report Server for the list of supported data sources. When a tabular model connects to. Import Mode: In this mode, Power BI connects with underlying data source & downloads entire data from the datasource. Direct Query slower. A source group can represent imported data or a connection to a DirectQuery source. 1 Answer. In the Data hub page, select the Direct Lake dataset you want to connect to, and then select Connect. The views feed directly into the data model - again with no logic in the partition query (as that would just. In the Incremental Refresh settings window, turn on the Incrementally refresh this table slider. Enter the name and port of the SAP HANA server you want to connect to. Right now I have the fact table in Direct Query and the visuals' performance is. In the Power Query Editor, right-click on the table you want to change and select "Advanced Editor". The location of the gateway installation can have significant effect on your query performance. These parameters, defined in the Manage Parameters dialog in Power Query Editor, are initially used to filter the data loaded into the Power BI Desktop model. 3) Both. Yet SQL databases are pervasive data sources and there's not always a database administrador available to help set up a proper data warehouse. Use DirectQuery or Import mode. You will almost universally see better performance when importing, rather than utilizing DirectQuery. * Matt is a Microsoft MVP (Power BI) and author of the Power BI Book Supercharge Power BI. It’s because there are two sets of connector that Power BI uses for DirectQuery: an older set that was built some time ago for the data sources originally supported by Analysis Services Tabular, and a newer set that is built in Power Query’s M language. As its name suggests, DirectQuery is a method of retrieving data, that pulls the data directly from the data source, at the query time! The last part of the sentence holds the key — while Import mode stores the snapshot of your data in-memory — DirectQuery (DQ) doesn’t store any data. 07-12-2021 05:17 PM. The Power BI service offers two types of connections: DirectQuery and Import. DirectQuery may be slower in some cases,. We were creating a PBI datasest and connecting multiple reports to it via direct query. When I close and apply, I get an error: Microsoft SQL: Incorrect syntax near the keyword 'exec'. A Power BI dataset is always a semantic layer, an easily consumable interface for your BI data: in Import mode it is a semantic layer and it also stores the. May 2, 2021 Chris Webb. 13 contributors Feedback In this article Power BI data connectivity modes DirectQuery use cases DirectQuery limitations DirectQuery recommendations Show 3 more In Power BI Desktop or the. Message 4 of 10. Preview returns data with no problems. If the data is over 1 million rows, Power BI shows an error, except in Premium capacity with different admin-set limits. If a visual is taking 20 seconds, I want to do performance tuning to make it to load in less than 10 seconds. This speeds up import enormously. Every query to the data will be a query to the in-memory structure, not to the data source. So in such scenario, an import mode is faster than Direct Query mode when the data file size is below 1 GB. Once you have this file open, Download DAX studio utility on the same machine. Limit the number of visuals on a page. Using the enhanced compute engine provides the following advantages: Drastically reduces the refresh time required for long-running ETL (extract, transform, load) steps over computed entities,. Integrate data by caching data from dataflows and. 2. This can put analysts and developers coming from the self-service side in a difficult situation as. Before I go further, I must let you know that the sample data that I used here is not big enough, and has a maximum of one million rows. For Direct Query models, these views should have no logic and just be SELECT * FROM [DatabaseName]. When you go for Import mode, you can view the fetched data. Let’s look at the main differences between the two: Import: The data is imported into Power BI Desktop. There are two different Data Connectivity modes in Power BI; viz; Import & Direct Query. Power BI tracks model and user report queries in a query log. You can connect Azure Data Explorer as a data source to Power BI in the following ways: Starting in Azure Data Explorer web UI and then pasting the data in Power BI Desktop. It can be a 3rd way to import and entity and reuse in PBI datasets both in import and direct query mode. -> Import vs Direct Query – So at the moment i am loading the queries into Power BI Desktop by using Import Query rather than Direct Query inturn it stores the data in the cloud, which isn’t security approved at the moment. DirectQuery – DirectQuery Connectivity mode lets you connect directly to data. When querying the source, PBI won't use filters (directly in the query) that come from tables in import mode. Here are the steps to follow: Open the Power BI Desktop file that you want to switch from Import to DirectQuery mode. pbix file size is like 900KB, so you get a sense of the tables rows which is also small (around the 10k - 50k rows). Live connection. If you are using role-based or row-level security, use groups to manage role membership. Select the "Data source settings" button and then select "Change Source". There are 4 connectivity modes: 1. Import Mode — Pros. Embed for Customer Direct Query vs Import. You can't use these statements in subqueries. You need to reimport. You can connect Azure Data Explorer as a data source to Power BI in the following ways: Starting in Azure Data Explorer web UI and then pasting the data in Power BI Desktop. APPLIES TO: Power BI Desktop Power BI service. Instead, Power BI sends queries to the source and displays the results directly. Composite models — this feature lets you combine data coming from two different DirectQuery sources, data coming from DirectQuery and Import mode, or any combination of these. Direct Lake is the newest type of connection in Power BI. DirectQuery vs. 05-23-2016 09:28 PM. Use calculated measures in the SQL query, or inside of the native query is better. Optimizing the data model. I have an issue regarding 'direct query' vs 'import'. Power BI offers 2 modes of connecting SQL on-prem databases. e. First, bring all your tables in your Power BI dataset in as Direct Query storage mode. The portal doesn’t support the use of Power Query with datasets, you need to use Power BI desktop. Optimize the report design: Optimize report designs. Then P3 is one level up, P4 is the brand which is another level up and. Direct Lake mode is a groundbreaking new dataset capability for analyzing very large data volumes in Power BI. set up data source credentials for Power BI datasets. Performance. • Consider promote/certify your dataset so that it can be reused by others in the organisation. Fusing data queries together and avoiding unnecessary roundtrips is a tried and proven approach to boost query performance in Power BI. PowerPlatform. Group by and summarize. The SAP BW Connector for Power BI supports BW version 7. Choose Azure Synapse Analytics (SQL DW) from the list of connection options. I ask because import mode stores this 8GB data into memory when. So i want to figure out. The key differences between DirectQuery and Import in Power BI are: Data storage and processing: The Import method stores the data within the Power BI file, while DirectQuery retrieves the data directly from the data source in real time. There are some table that's in import mode, and some which are DirectQuery. In the DirectQuery mode, click on the model tab from the vertical left-hand menu. Reduces load on/number of calls to source system. Power BI Direct Query Method: In this method, at the time of creating the data model, only the schema, tables and columns are defined. The web based Data Source did pull data from the Excel file on Sharepoint into Power BI desktop. So, if you have many users who are sending requests to Snowflake and Snowflake charges you for it use. The key differences between DirectQuery and Import in Power BI are: Data storage and processing: The Import method stores the data within the Power BI file, while DirectQuery retrieves the data directly from the data source in real time. Click on “OK” to confirm the changes. The only way to run a "to database" query refresh is via the Refresh Now option (pbi server > Settings. The Currency Exchange table manages currency conversions. See also. You can not edit your data by query editor, it will ask to to switch to data import mode. Both of these connectivity modes have their own unique features and capabilities. If this is the first time you're connecting using the OData Feed, select the authentication kind and enter your credentials (if necessary). July 2, 2023 Chris Webb. Visualizations, including dashboards, Power BI reports, and Power BI paginated reports. In this article. Enter credentials for DirectQuery to Power BI dataset. Related to your question on import or live connection it depends on your data sources. Because the data is stored locally within the Power BI. * ,c. , tables, relationships) of how your model is structured to query the data source. If your data source is a SQL Server database then Power BI will generate SQL queries to get the data it needs; for other sources it may generate queries in other query languages. In Import mode Power BI Desktop store the data inside Power BI Cache. For PowerBi. First, select 'Home', then 'Get Data', then select 'More' and choose 'Direct Query'. Unlike user-defined. The direct query option I can only see it worthy for a very special situation that need a composite model to incorporate one table for an specific requirement. Select the dataset you want to import and click on the "Data Source Settings" in the "Manage" tab. Live Connection refers to connecting directly to a Model (SSAS Multidimensional or Tabular) in this regard, all your modeling work is done on those. 11) Right click the value of the row and click the menu item Drill down. Go into FileOptions and SettingsOptions. If you're. It fundamentally changes how we create and consume BI solutions. This process is called query folding. Yes, that's right--put the dimensions you'll want in slicers into their own table in Import mode and relate to your fact table. . Go to the App Workspace where you uploaded the PBIX file and log into the Power BI Service. DataSet refresh with Import vs Direct Query 02-25-2021 10:16 PM. The query is the DAX formula you need for the dataset in Power BI Report Builder. Hello @akiko_lim,. For Power BI users, refreshing data typically means importing data from the original data sources into a semantic model, either based on a refresh schedule or on-demand. This can be done in either Power BI Desktop or Power BI Service. When you use DirectQuery, composite models make it possible to create a Power BI model, such as a single . There are two different Data Connectivity modes in Power BI; viz; Import & Direct Query. Use DirectQuery or Import mode. How we can use Direct Query when loading data into Power BI DesktopDirectQuery has limitations in the data transformations that can be applied within Power Query Editor. Connect the file with the latest data only just as suggested by @amitchandak . To connect SQL Server Profiler to your Power BI Desktop report: Open SQL Server Profiler. 07-20-2018 10:08 AM. 1) Sales data needs to be refreshed in near real time, so "Direct Query" is preferred. Select Get data and select more. Now, when a user logs in, they will only see their own. Click on “Current File” in the left-hand panel. As your report readers interact with visualizations on your report, Power BI queries the imported data. For choosing direct query or import, you need to consider the data amount (1GB limit for dataset size) and refresh frequency. Loads and stores all the data into Power BI before using it in the report. With Import connection, you can take full advantages of the high-performance query engine. Each query is limited to return less than or equal to 1 million rows. With Direct Query - you are connecting to a database, and you have the ability to create calculated columns and measures in Power BI. pbix reports where I used Import to bring in SQL Server data and a few CSV files (dimension tables). However, it can put undue load on the capacity or data source. We recommend the Import Query mode when. The strange thing is that, once you wait it out and manage to develop and publish a direct query report into Power BI Service, it works fine with the gateway and the same ODBC driver. Other relevant best practices: • Add users to Office or Azure Active Directory groups and then use groups to share report content. Option to Select Import & Direct Query within Power BI Direct Query – When you connect a data source using the Direct Query technique, your dashboard will query the data. Amazon Redshift is a fast, fully managed, cloud-native data warehouse that makes it simple and cost-effective to analyze all your data using standard SQL and your existing business intelligence (BI) tools. Performance: The Import method can offer better performance than DirectQuery, as the data is stored locally and can be optimized for performance. How you can incrementally refresh any Power BI data source (This. Power BI を検討する際、最初に検討するべき項目の一つとして、データソースへの接続モード（インポート、DirectQuery など）があります。 一般的に、Power BI では機能面とパフォーマンス面から、可能な限りインポート形式のデータセットでデータモデルを構築. As its name suggests, DirectQuery is a method of retrieving data, that pulls the data directly from the data source, at the query time! The last part of the sentence holds the key – while Import mode stores the snapshot of your data in-memory – DirectQuery (DQ) doesn’t store any data. On the Get Data screen, select Database, and then select either SAP Business Warehouse Application Server or SAP Business Warehouse Message Server. Orders table loaded into PBI Desktop using Power Query. First, there is no need for scheduled data refreshes since DirectQuery always brings back the latest data. 30. Configuration of the Security for DRLS in the Power BI Service. Using a custom SQL query. Power BI Direct Query Method: In this method, at the time of creating the data model, only the schema, tables and columns are defined. Limitations of using DirectQuery : You can not connect to other sources which does not support directQuery. If you require full control over data, extensive modeling capabilities, and customization, a local data model is ideal. You can check this process in SQL Profiler. The following screenshot highlights a group of events for a query. Direct Query or Import Mode in terms of performance speed . In the Performance Analyzer pane, hit Start recording and then Refresh visuals. Open your Power BI model and select the report containing the dataset that you want to switch to import mode. Some of the visuals take 10-20 seconds to load. • Consider promote/certify your dataset so that it can be reused by others in the organisation. Consider the following table called FruitSales in a SQL Server database: If I build a DirectQuery dataset containing only this table I can create the following Power BI report with a matrix and a slicer: The SQL query generated by Power BI to get the data for the matrix is this: SELECT TOP (1000001) [t0]. Using Datamarts, you can build Power Query ETLs using the portal. Use Import mode when:. Power BI On-premise Gateway supports scheduled refresh of datasets for BI Connector based data sources. pbix file is a Power BI model with 10 million rows in the Sales table. Power BI has different data connectors to connect those data sources. In Import mode, data is moved to Power BI. Another thing to note in difference. In Power BI Desktop, you can determine and specify a column's data type in the Power Query Editor, in Data View, or in Report View: In Power Query Editor, select the column and then select Data Type in the Transform group of the ribbon. It modifies visuals for displaying the model tables. SQL DW) are imported into Power BI Desktop and into the computers memory. . Should you use Import or DirectQuery data connectivity mode for your Power BI models? Let's make the right choice by comparing the performance and scalabilit. Live connection. Select Connect. Rendered event: The time until the report is fully rendered, using the. Include in the view only the columns that. Generally, query results are small in size. Optimize data source performance. If I answered your question, please mark my post as solution, Appreciate your Kudos 👍. May 7, 2023 Chris Webb. Select OAuth2, and enter the Power BI account credentials that have access to the datasets. Yes it’s different. Check the datamodel and the storage mode of each table involved (ie: fact table, calendar, customer, etc). As long as the data returned to Power BI is less than 1 million rows, the query can accurately return the results. 1 ACCEPTED SOLUTION. Automatic aggregations use state-of-the-art machine learning (ML) to continuously optimize DirectQuery semantic models for maximum report query performance. For Server Name, enter localhost: [port recorded earlier]. Note: This size limit is the compressed data size that. DimCustomer. Enter the Odata URI and click ok. Create one view for each table you want to create in the Power BI data model within that schema. I created calculated column on the imported table to perform value lookup from DirectQuery table. Import Mode-. For example, the query that runs on the data source can aggregate 10 million rows. To connect to Dataverse from Power Query Online: Select the Dataverse option in the Choose data source page. DAX should be used when aggregating data that is calculated on the fly. Measures are dynamic. It is important to note that when using Direct. This time the maximum amount of data read by Power Query was only 2. Direct Lake is a fast-path to load. Not sure what DirectQuery is or how it works in Power BI? Then, this is the quick video you will want to watch! In this quick discussion we will talk about t. This is a more complicated question to answer than you might think, though, and in this post I’ll explain why. A Power BI dataset is always a semantic layer, an easily consumable interface for your BI data: in Import mode it is a semantic layer and it also stores the data it. So, I'm stumble with PowerBI Desktop. Here are the differences between using import and DirectQuery connectivity modes: Import: A copy of the data from the selected tables and columns imports into. On-Demand Loading Of Direct Lake Power BI Datasets In Fabric. Power BI uses the query as provided, without an attempt to rewrite it. "Power BI does not import data over connections that operate in DirectQuery mode. So, you can carry out all the steps in the dataflow to replicate the table or copy-paste the Power Query code from Power BI Desktop to the dataflow. How we can use Direct Query when loading data into Power BI DesktopDirectQuery has limitations in the data transformations that can be applied within Power Query Editor. I blog about Power BI, Power. In the Power BI service, users with access to a workspace have access to semantic models in that workspace. DirectQuery vs. If you're using Power Query from Power BI Desktop, you'll be asked to select either the Import or DirectQuery data connectivity mode. 04-25-2023 03:03 PM. (15) Power Pivot (4) Power Platform (17) Power Query (71) PowerShell (11) Reporting Services. Create one view for each table you want to create in the Power BI data model within that schema. The Currency Exchange table manages currency conversions. In Get Data > Power Platform, select Power BI datasets, and then select Connect. Power query results are always fresh and Delta Lake data security controls are enforced. Conclusion. Just have in mind, that this method might prevent query folding, so it is mostly suitable. Serverless SQL pools can't provide an interactive experience in Power BI Direct Query mode if you're using complex queries or processing a large amount of data. Please refer to a blog below: Power BI – Live connection vs. The credentials. Topic Options. If you are pulling in tables and modeling with pbi then you will want to import. When you interact with the report, the data is loaded from. The data is not imported. The key differences between DirectQuery and Import in Power BI are: Data storage and processing: The Import method stores the data within the Power BI file, while DirectQuery retrieves the data directly from the data source in real time. It supports all data sources. All Power BI Import and non-multidimensional DirectQuery data sources can work. July 2022: This post was reviewed for accuracy. Watch on. One of the most compelling advantages of using Power BI’s Import mode is its speed. Select the "Transform Data" button on the "Home" tab. [Colour],SUM ( CAST ( [t0]. Use data in Power BI. On the other hand, if your organization relies. In theory, leaving the data within source systems — or within a single “golden” dataset — and having multiple reports connect using DirectQuery sounds like a great idea. We are using a A1 Sku for the. As of now, some of the cloud data sources we can connect through Power BI Live Connection are: Azure Analysis Services; SQL Server Analysis Services TabularTo connect to an SAP HANA database from Power Query Desktop: Select Get Data > SAP HANA database in Power BI Desktop or From Database > From SAP HANA Database in the Data ribbon in Excel. Because the storage mode for each fact table is Direct Query or Import, the storage mode for the dimension tables must be set to Dual. Follow these steps to get the query. Import mode: In this mode, Power BI imports the data from the source and creates an in-memory snapshot of the data. Figure 2: Power. Hello everyone! I am still trying to get a working Direct Query with PowerBI. Our sample Power BI report is based on the TPC-DS dataset. Query log data is rolled forward each day. Data not imported or copied into Power BI Desktop. Click Run —now the SQL Server Profiler trace is live, and is actively profiling Power BI. This query parallelization reduces the impact of data source delays and network latencies on query performance. Regards, View solution in original post. Also, some data sources may not. You can click Transform Data, if necessary, when working with your own files. Welcome to the November 2023 update. This data is stored in Power BI model. If you’re using the native Oracle connector in Power Query, you will probably experience a very slow import performance. Import Mode vs Direct. Orders o INNER JOIN Sales. To measure embedded performance, you can use two events: Loaded event: The time until the report is initialized (the Power BI logo disappears when the load is finished). Using the Import method, Power BI captures a snapshot of your data and caches it in Power BI Desktop. Import Mode: In this mode, data is imported from the data source into Power BI’s internal data engine called the Power BI Desktop. Import vs DirectQuery in Power BI. Direct Query. Select “Import” under “Data Connectivity Mode”. Analysis Services can also sit over a data source in direct query mode or import the data, like Power BI. If you have a slow DirectQuery report in Power BI one of the first questions you need to ask is how long the SQL queries that Power BI generates take to run. More information: Where to. We are excited to announce. Now, the performance of this report would depend on many things. 01-22-2020 07:46 PM. For more information, see Power. First, click on the "File" tab and select "Options and Settings," then click on "Options" and select "Current File. If your data size is less then 1 GB or data not continually changing then you can use Import mode. The initial Contoso. Connect to Dataverse from Power Query Online. Detailed explanation can be found in the video session below. " For import models, you can find the refresh schedule in the "Scheduled refresh" section of the Datasets tab. In the Properties pane, expand the Advanced section, and expand. Go into FileOptions and SettingsOptions. But if using direct query, do (or could) these performance impacts in privacy levels affect the report response times for. In addition to delivering fast query performance and lowering infrastructure costs, Dremio also makes it easy for Power BI report authors to connect to their data sources. It is called automatic aggregations. The data is not imported or embedded into the xlsx or pbix file. , a user runs a report, or changes filters). Cumulative Total/ Running Total in Power BI; DAX - COUNT, COUNTA & COUNTX Functions; Column quality, Column distribution & Column profile; Power BI - Import. This pattern restricts using query statements that use Common Table Expressions (CTEs) and stored procedures. Applies to: SQL Server Analysis Services Azure Analysis Services Power BI Premium This article describes DirectQuery mode for Analysis Services tabular models at the 1200 and higher compatibility levels. Then select Next. DirectQuery is a. Follow the steps described in Connect with Power BI Desktop to create a connection, using Import as the data connectivity mode. More than one year ago, I and Alberto Ferrari started to work on DirectQuery, exploring the new implementation appeared in Analysis Services 2016 for the Tabular models, which uses the same engine of Power BI. This UI is basically the use of Power Query to import data. Expand the plus sign (+) next to the table name, and select Copy query. In my opinion Live connections is the best option. Minimizing the distance between your Snowflake and Power BI data centers can reduce latency and improve query performance. With Power BI natively. Chris Webb – My name is Chris Webb, and I work on the Fabric CAT team at Microsoft. Should you use Import or DirectQuery data connectivity mode for your Power BI models? Let's make the right choice by comparing the performance and scalabilit. There is more to explore, please continue to read on. The dialogue confirms our settings. I understand that the auto feature is only available when the corresponding table is in direct query mode. To measure embedded performance, you can use two events: Loaded event: The time until the report is initialized (the Power BI logo disappears when the load is finished). Every query to the data will be a query to the in-memory structure, not to the data source. Direct Lake is based on loading parquet-formatted files directly from a data lake without having to query a Lakehouse endpoint, and without having to import or duplicate data into a Power BI dataset. When the report user changes the report parameter to a different year—and then views the report—Power BI doesn't need to retrieve any source data. The recent release of DAX Studio 2. Import vs. Fusing data queries together and avoiding unnecessary roundtrips is a tried and proven approach to boost query performance in Power BI. In Import method, upon load all the data will be imported and kept on Power BI cache which will be queried while building a visual with Power BI Desktop. When scheduled the reports takes 10-20 minutes to refresh at the same time (I have 4 reports)Actually, power bi will limit you to use dax calculation functions in calculated column if you are working on 'direct query' mode. Power BI’s DirectQuery data storage mode works much differently than Import. Specify the Teradata server to connect to in Server. With DirectQuery enabled; every time you see a visualization, Power BI sends a query to the data source, and the result of that comes back. It does not affect the performance of queries in the Power BI Service, although there is another setting that (I think) will have the same effect for queries that go through an on-premises data gateway – but that’s yet another for a future post. It provides best practice guidance on when—and how—you can achieve Power Query query folding. Image 1 shows this how to manage roles.