About What Is Power BI? The Full Story Visually Explained | #PowerBI Course 1

Power BI Desktop File Format Differences (PBIX vs PBIP) Power Query Merge vs Append Tables for Data Combination Power BI Three-Tier Architecture: Desktop, Service, and Mobile General applied mathematics Extracting Dimensions and Junk Dimensions from Fact Tables Direct Query Connection Mode in Power BI Desktop Power BI Import vs DirectQuery: Performance and Data Freshness Comparison Import, DirectQuery, and Live Connection: Semantic Model Flexibility vs. Performance Tradeoffs Unpivot and Pivot Columns in Power Query Unidirectional Filter Propagation from Dimension to Fact Tables in Star Schemas Data Grain Definition Power Query Data Transformation and ETL Pipeline PBIP Project Files: JSON Structure and Version Control Workflow Power BI Data Modeling: Grain Definition and Impact on DAX Calculations Power Query Reference vs Duplicate Queries Power BI Cardinality and Filter Direction Relationships in Data Modeling Ambiguous Relationships: Active vs Inactive Paths and USERELATIONSHIP General theory of mathematical modeling Power BI Live Connection to a Shared Semantic Model Connecting Fact Tables of Different Grain via Shared Dimensions Role-Playing Dimensions Relational Data Modeling: Segregated Tables vs Monolithic Structures in Power BI Power BI Import Storage Mode: Local Caching and the Refresh Overwrite Protocol Handle Missing Values in Power Query using Replace and Trim functions