Introduction to Power BI
What is Power BI?
- Overview of Microsoft’s Business Intelligence platform
- Components of Power BI: Power BI Desktop, Power BI Service, Power BI Mobile
Key Features & Benefits
- Data connectivity, transformation, and visualization
- Real-time dashboards and collaborative analytics
- Cost-effectiveness and scalability
Power BI Architecture
- Understanding the Power BI ecosystem: Data sources, Power BI Desktop, Power BI Service, Gateway
- Data refresh and publishing cycle
Power BI Desktop Overview
Installing & Setting Up Power BI Desktop
- System requirements and installation steps
- Introduction to the Power BI Desktop interface
Connecting to Data Sources
- Connecting to Excel, SQL Server, Web APIs, SharePoint, and more
- Managing data connections and credentials
Understanding Data Models
- Working with relationships, star schemas, and snowflake models
- Best practices for building robust data models
Data Preparation & Transformation (Power Query)
Introduction to Power Query Editor
- Overview of Power Query interface
- Steps to import, transform, and clean data
Data Transformation Techniques
- Merging, appending, pivoting, and unpivoting data
- Filtering rows, replacing values, and data type conversions
Best Practices for Data Cleaning
- Handling missing data and duplicates
- Applying transformation steps systematically
Data Modeling in Power BI
Introduction to Data Modeling
- Concepts of tables, relationships, and cardinality
- Importance of a well-designed data model
Creating Relationships Between Tables
- One-to-One, One-to-Many, and Many-to-Many relationships
- Relationship directions and impact on report filters
Building Calculated Columns, Measures, and Tables
- Understanding DAX (Data Analysis Expressions)
- When to use columns, measures, and tables
Introduction to DAX (Data Analysis Expressions)
Understanding DAX Syntax & Functions
- Basic DAX functions: SUM, AVERAGE, COUNTROWS, etc.
- Logical functions: IF, SWITCH, AND, OR
Creating Measures and KPIs
- Writing efficient DAX measures
- Creating KPIs for dashboards and reports
Advanced DAX Concepts
- Time Intelligence functions: YTD, QTD, MTD
- Calculations over hierarchies and context transition
Visualizations in Power BI
Creating Basic Visualizations
- Bar charts, Pie charts, Line charts, Cards, Tables
Advanced Visualizations
- Waterfall charts, Donut charts, Treemaps, Maps, Gauge charts
Custom Visuals
- Importing and using custom visuals from AppSource
- Building tailored visualizations for storytelling
Visual Interaction and Drill-Down
- Enabling drill-through and cross-filtering between visuals
- Designing interactive reports
Power BI Service (Cloud)
Publishing Reports to Power BI Service
- Steps to publish from Power BI Desktop to Service
Creating and Managing Dashboards
- Pinning visuals to dashboards
- Real-time data tiles and Q&A functionality
Workspaces and Apps
- Organizing reports and dashboards in Workspaces
- Publishing apps for wider audience distribution
Sharing & Collaboration
Sharing Reports and Dashboards
- Sharing options inside Power BI Service
- Managing permissions and access levels
Subscriptions and Alerts
- Setting up email subscriptions for reports
- Creating data alerts for threshold-based notifications
Commenting and Collaboration
- Collaborative commenting within dashboards
- Integrating Power BI with Microsoft Teams
Power BI Mobile & Embedded Analytics
Power BI Mobile Overview
- Setting up and using Power BI Mobile apps
- Optimizing reports for mobile devices
Embedding Power BI in Applications
- Basics of Power BI Embedded Service
- Overview of API access and embedding dashboards in custom portals
Advanced Power BI Topics
Row-Level Security (RLS)
- Setting up RLS to restrict data access
- Managing RLS roles and testing security settings
Incremental Data Refresh
- Enabling incremental refresh for large datasets
- Best practices for performance optimization
Power BI Gateway
- Installing and configuring Data Gateway
- Managing on-premises data refresh schedules
Optimizing Performance
- Query reduction techniques
- Best practices for faster report loading and data modeling
Power BI Administration & Governance
Power BI Admin Portal
- Managing users, groups, and settings
Auditing and Monitoring
- Activity logs and usage metrics
Licensing Overview
- Understanding Power BI Free, Pro, Premium licensing
- Choosing the right plan for business needs
Best Practices for Enterprise Deployment
- Governance policies
- Lifecycle management and version control in Power BI
Real-Time Projects and Case Studies
Building End-to-End Solutions
- Real-world project examples from different industries: Sales, Finance, HR, Operations
Best Practices for Building Reports
- Designing visually appealing and effective reports
Interview Preparation
- Common Power BI interview questions
- Hands-on exercises and assignments