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Connecting Power BI to Databases

Connecting Power BI to Databases

Databases are widely used to store structured business information. Power BI can connect to supported database systems and retrieve the data required for reporting.

Connecting to SQL Server

Microsoft SQL Server is commonly used in business applications and enterprise reporting environments.

To connect to SQL Server:

  1. Open Power BI Desktop.
  2. Select Home → Get data → SQL Server.
  3. Enter the server name.
  4. Enter the database name if required.
  5. Select the appropriate connectivity mode.
  6. Provide the required authentication details.
  7. Select the tables or supported database objects you want to use.
  8. Load the data or open Power Query for transformation.

You must have the necessary database permissions and network access. The server name and authentication method depend on your organization's configuration.

Understanding Database Tables

Imagine a database containing three tables:

  • Customers: Customer identifiers, names, and locations.
  • Orders: Order identifiers, customer identifiers, and order dates.
  • OrderDetails: Product identifiers, quantities, and prices for individual orders.

Power BI can retrieve information from these tables for analysis. In a later module, you will learn how to create relationships between them to support accurate reporting.

Connecting to PostgreSQL

Power BI also supports PostgreSQL through its database connector.

The general workflow is similar:

  1. Select the PostgreSQL database connector.
  2. Enter the server address and database name.
  3. Configure authentication.
  4. Choose the required tables or data.
  5. Load or transform the selected data.

Depending on the environment and connector version, you may need an appropriate PostgreSQL driver or additional configuration.

Importing Data vs. Querying a Database

When connecting to a database, Power BI may offer different storage modes, depending on the connector and supported configuration.

With Import mode, data is loaded into the Power BI model. With DirectQuery, supported queries retrieve data from the underlying source when needed.

The choice affects report responsiveness, data freshness, source workload, and modeling capabilities. You will explore these modes in more detail in the next lesson.

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Power BI Tutorial

VA

Vishalini A

Power BI Tutorial

MODULE 1 : Introduction to Power BI
lessonWhat Is Power BI?
lessonWhy Is Power BI Important?
lessonKey Components of Power BI
lessonUnderstanding Power BI Reports, Dashboards, and Visualizations
lessonHow Power BI Works
lessonCommon Use Cases of Power BI
MODULE 2 : Power BI Ecosystem and Installation
lessonUnderstanding the Power BI Ecosystem
lessonPower BI Desktop vs. Power BI Service
lessonPower BI Licensing and Workspace Basics
lessonInstalling Power BI Desktop
lessonExploring the Power BI Desktop Interface
lessonCreating Your First Power BI Report File
MODULE 3 : Connecting to Data Sources in Power BI
lessonUnderstanding Data Sources in Power BI
lessonConnecting Power BI to Excel and CSV Files
lessonConnecting Power BI to Databases
lessonUnderstanding Import Mode and DirectQuery
lessonConnecting to Web Data and APIs
lessonManaging and Troubleshooting Data Connections
MODULE 4 : Data Cleaning and Transformation in Power BI
lessonUnderstanding Data Cleaning and Transformation
lessonExploring Power Query Editor
lessonCleaning Data by Removing Duplicates, Handling Missing Values, and Correcting Errors
lessonTransforming Data with Power Query
lessonUsing Power Query to Prepare a Sales Dataset
lessonApplying Data Preparation Best Practices and Troubleshooting Common Problems
MODULE 5 : Data Modeling and Relationships in Power BI
lessonUnderstanding Data Modeling in Power BI
lessonCreating Relationships Between Tables
lessonUnderstanding Cardinality and Cross-Filter Direction
lessonDesigning a Star Schema
lessonWorking with Date Tables and Model Relationships
lessonData Modeling Best Practices and Common Mistakes
MODULE 6 : Data Visualization Fundamentals in Power BI
lessonUnderstanding Visualizations in Power BI
lessonChoosing the Right Chart Type
lessonCreating Your First Visualization
lessonFormatting and Customizing Visuals
lessonUsing Filters and Sorting in Visualizations
lessonVisualization Best Practices and Common Mistakes
MODULE 7 : Building Interactive Reports in Power BI
lessonUnderstanding Interactive Reports
lessonUsing Slicers and Visual Interactions
lessonDrill-Down and Drill-Through
lessonUsing Bookmarks and Buttons
lessonCustom Tooltips and Report Navigation
lessonBuilding and Testing an Interactive Sales Report
MODULE 8 : Introduction to DAX in Power BI
lessonUnderstanding DAX and Its Role in Power BI
lessonUnderstanding DAX Syntax and Operators
lessonCalculated Columns vs. Measures
lessonCommon DAX Functions
lessonUnderstanding Filter Context and Row Context
lessonCreating and Validating Your First DAX Measures
MODULE 9 : Advanced DAX and Time Intelligence in Power BI
lessonWorking with CALCULATE and Filter Functions
lessonCalculating Percentages, Growth, and Ranking
lessonUnderstanding Time Intelligence in DAX
lessonAdvanced Time-Based Comparisons
lessonVariables and Reusable DAX Expressions
lessonOptimizing and Troubleshooting DAX Measures
MODULE 10 : Power BI Dashboards and Data Storytelling
lessonUnderstanding Power BI Dashboards
lessonDesigning an Effective Dashboard Layout
lessonCreating and Publishing a Dashboard
lessonUnderstanding Key Performance Indicators
lessonData Storytelling with Power BI
lessonDashboard Best Practices and Performance Monitoring
MODULE 11 : Publishing and Sharing Reports in Power BI
lessonUnderstanding Power BI Publishing
lessonPublishing a Report from Power BI Desktop
lessonManaging Power BI Workspaces
lessonSharing Reports and Distributing Content Through Apps
lessonUnderstanding Licensing and Secure Report Access
lessonTroubleshooting Publishing and Sharing Issues
MODULE 12 : Refresh Gateways and Scheduled Updates in Power BI
lessonUnderstanding Data Refresh in Power BI
lessonConfiguring Scheduled Refresh
lessonUnderstanding Power BI Gateways
lessonManaging Credentials and Data Source Connections
lessonIncremental Refresh and Refresh Optimization
lessonTroubleshooting Refresh Failures
MODULE 13 : Power BI Security Governance and Administration
lessonUnderstanding Security in Power BI
lessonManaging Workspace Roles and Permissions
lessonImplementing Row-Level Security (RLS)
lessonProtecting Sensitive Data and Applying Governance
lessonManaging Power BI Environments and Deployment
lessonMonitoring, Auditing, and Troubleshooting Security Issues
MODULE 14 : Advanced Power BI Features
lessonUsing Field Parameters for Dynamic Reports
lessonWhat-If Parameters and Scenario Analysis
lessonCalculation Groups and Reusable Calculations
lessonPaginated Reports and Specialized Reporting
lessonIntegrating Power BI with Other Tools
lessonAdvanced Analytics and AI Features
MODULE 15 : Real-World Power BI Projects and Career Roadmap
lessonProject 1 - Sales Performance Analysis
lessonProject 2 - Financial Analysis Dashboard
lessonProject 3 - Customer Analytics and Retention
lessonProject 4 - Human Resources Analytics
lessonBuilding a Complete Power BI Project from Start to Finish
lessonPower BI Career Roadmap and Portfolio Development

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Microsoft Power BI

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Power BI Tutorial

MODULE 1 : Introduction to Power BI
lessonWhat Is Power BI?
lessonWhy Is Power BI Important?
lessonKey Components of Power BI
lessonUnderstanding Power BI Reports, Dashboards, and Visualizations
lessonHow Power BI Works
lessonCommon Use Cases of Power BI
MODULE 2 : Power BI Ecosystem and Installation
lessonUnderstanding the Power BI Ecosystem
lessonPower BI Desktop vs. Power BI Service
lessonPower BI Licensing and Workspace Basics
lessonInstalling Power BI Desktop
lessonExploring the Power BI Desktop Interface
lessonCreating Your First Power BI Report File
MODULE 3 : Connecting to Data Sources in Power BI
lessonUnderstanding Data Sources in Power BI
lessonConnecting Power BI to Excel and CSV Files
lessonConnecting Power BI to Databases
lessonUnderstanding Import Mode and DirectQuery
lessonConnecting to Web Data and APIs
lessonManaging and Troubleshooting Data Connections
MODULE 4 : Data Cleaning and Transformation in Power BI
lessonUnderstanding Data Cleaning and Transformation
lessonExploring Power Query Editor
lessonCleaning Data by Removing Duplicates, Handling Missing Values, and Correcting Errors
lessonTransforming Data with Power Query
lessonUsing Power Query to Prepare a Sales Dataset
lessonApplying Data Preparation Best Practices and Troubleshooting Common Problems
MODULE 5 : Data Modeling and Relationships in Power BI
lessonUnderstanding Data Modeling in Power BI
lessonCreating Relationships Between Tables
lessonUnderstanding Cardinality and Cross-Filter Direction
lessonDesigning a Star Schema
lessonWorking with Date Tables and Model Relationships
lessonData Modeling Best Practices and Common Mistakes
MODULE 6 : Data Visualization Fundamentals in Power BI
lessonUnderstanding Visualizations in Power BI
lessonChoosing the Right Chart Type
lessonCreating Your First Visualization
lessonFormatting and Customizing Visuals
lessonUsing Filters and Sorting in Visualizations
lessonVisualization Best Practices and Common Mistakes
MODULE 7 : Building Interactive Reports in Power BI
lessonUnderstanding Interactive Reports
lessonUsing Slicers and Visual Interactions
lessonDrill-Down and Drill-Through
lessonUsing Bookmarks and Buttons
lessonCustom Tooltips and Report Navigation
lessonBuilding and Testing an Interactive Sales Report
MODULE 8 : Introduction to DAX in Power BI
lessonUnderstanding DAX and Its Role in Power BI
lessonUnderstanding DAX Syntax and Operators
lessonCalculated Columns vs. Measures
lessonCommon DAX Functions
lessonUnderstanding Filter Context and Row Context
lessonCreating and Validating Your First DAX Measures
MODULE 9 : Advanced DAX and Time Intelligence in Power BI
lessonWorking with CALCULATE and Filter Functions
lessonCalculating Percentages, Growth, and Ranking
lessonUnderstanding Time Intelligence in DAX
lessonAdvanced Time-Based Comparisons
lessonVariables and Reusable DAX Expressions
lessonOptimizing and Troubleshooting DAX Measures
MODULE 10 : Power BI Dashboards and Data Storytelling
lessonUnderstanding Power BI Dashboards
lessonDesigning an Effective Dashboard Layout
lessonCreating and Publishing a Dashboard
lessonUnderstanding Key Performance Indicators
lessonData Storytelling with Power BI
lessonDashboard Best Practices and Performance Monitoring
MODULE 11 : Publishing and Sharing Reports in Power BI
lessonUnderstanding Power BI Publishing
lessonPublishing a Report from Power BI Desktop
lessonManaging Power BI Workspaces
lessonSharing Reports and Distributing Content Through Apps
lessonUnderstanding Licensing and Secure Report Access
lessonTroubleshooting Publishing and Sharing Issues
MODULE 12 : Refresh Gateways and Scheduled Updates in Power BI
lessonUnderstanding Data Refresh in Power BI
lessonConfiguring Scheduled Refresh
lessonUnderstanding Power BI Gateways
lessonManaging Credentials and Data Source Connections
lessonIncremental Refresh and Refresh Optimization
lessonTroubleshooting Refresh Failures
MODULE 13 : Power BI Security Governance and Administration
lessonUnderstanding Security in Power BI
lessonManaging Workspace Roles and Permissions
lessonImplementing Row-Level Security (RLS)
lessonProtecting Sensitive Data and Applying Governance
lessonManaging Power BI Environments and Deployment
lessonMonitoring, Auditing, and Troubleshooting Security Issues
MODULE 14 : Advanced Power BI Features
lessonUsing Field Parameters for Dynamic Reports
lessonWhat-If Parameters and Scenario Analysis
lessonCalculation Groups and Reusable Calculations
lessonPaginated Reports and Specialized Reporting
lessonIntegrating Power BI with Other Tools
lessonAdvanced Analytics and AI Features
MODULE 15 : Real-World Power BI Projects and Career Roadmap
lessonProject 1 - Sales Performance Analysis
lessonProject 2 - Financial Analysis Dashboard
lessonProject 3 - Customer Analytics and Retention
lessonProject 4 - Human Resources Analytics
lessonBuilding a Complete Power BI Project from Start to Finish
lessonPower BI Career Roadmap and Portfolio Development

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HCL GUVI (Grab Your Vernacular Imprint) Geek Network Private Limited is a leading online learning and skills development company, incubated by IIT Madras and IIM Ahmedabad.

Established in 2014 and acquired by the HCL Group in 2022, HCL GUVI is dedicated to providing effective and high-quality learning and skilling programs that transcend language barriers in technology education. HCL GUVI today is trusted by over 4.8 million users, 20 languages and 2500+ corporate partners.

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Refer & Earn

HCL GUVI (Grab Your Vernacular Imprint) Geek Network Private Limited is a leading online learning and skills development company, incubated by IIT Madras and IIM Ahmedabad.

Established in 2014 and acquired by the HCL Group in 2022, HCL GUVI is dedicated to providing effective and high-quality learning and skilling programs that transcend language barriers in technology education. HCL GUVI today is trusted by over 4.8 million users, 20 languages and 2500+ corporate partners.

app storeplay storeRefer & Earn
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