Power BI Step by Step Tutorials

Based on the outline you've provided, here is a comprehensive guide to understanding the various aspects of data modeling and analysis in Power BI with a focus on DAX (Data Analysis Expressions). This guide assumes that you have a foundational understanding of Power BI and some familiarity with Excel formulas.

Part 1: Basic Operations and Data Shaping

Chapter 1: Introduction to Power BI, DAX, and Data Shaping

• Understanding the Power BI interface and workflow.
• Overview of DAX as a query language used in Power BI for calculations.

Chapter 2: Text Manipulation in Power BI

• Removing special characters (like the rupee symbol) from strings using various text functions in DAX.

Chapter 3: Basic Calculations (Standard and Scientific)

• Performing standard arithmetic operations and scientific calculations with DAX functions.

Part 2: Pivot vs Unpivot, Parameters, Merge and Append Queries

Chapter 4: Pivot and Unpivot in Power BI

• Understanding the difference between pivoting and unpivoting data.
• Learning how to create pivot and unpivot tables using Power BI's built-in functions and DAX formulas.

Chapter 5: Working with Parameters

• Utilizing different types of parameters in Power BI, including simple parameters, list parameters, and query parameters.

Chapter 6: Merge Queries and Append Queries

• Combining data from multiple sources using merge queries.
• Appending tables or rows to existing ones within Power BI.

Part 3: Joins and Join Kind, Optimize PBIX File, Database Normalization

Chapter 7: Types of Join in Power BI

• Exploring different types of joins (left join, right join, inner join, etc.) and understanding how they work.

Chapter 8: Optimizing PBIX Files

• Learning strategies to optimize the performance of your Power BI files by leveraging the 'Load Feature'.

Chapter 9: Database Normalization

• Understanding the concept of database normalization and its importance in designing efficient data models.

Part 4: Data Model, OLTP, Star Schema & Snowflake Design, Dax Function

Chapter 10: Introduction to Data Modeling Chapters 10-110: Data Modeling Concepts

• Learning about the data model.
• Understanding OLTP (Online Transaction Processing) vs. analytical processes. Chapter 120: Designing Star Schema & Snowflake Schema
• Exploring star schema and snowflake schema designs in Power BI. Chapters 130-13100: Understanding Dax Functions for Calculations
• Diving deep into DAX functions specifically designed for complex calculations.

Part 5: Advanced Calculations, Ranking, and Top Values

Chapter 520: Introduction to Advanced DAX Calculations

• Overview of advanced DAX calculations. Chapter 550: Dynamic Calculation of Top N Values Using DAX Functions
• Learning how to dynamically calculate the top values using DAX functions like TOPN and PERCENTILEX.

Chapter 580: Ranking Data Using DAX RANKX, RANK, AND CUME RANK FUNCTIONS

• Exploring the ranking functions like RANKX, RANK, and CUME in DAX to rank data based on various criteria.

Part 6: Working with Dates and Time

Chapter 590: Working with Date and Time Data Types Using DAX Functions

• Understanding how to work with date and time data types using DAX functions like DATE, DAY, WEEK, etc.

Part 7: Complex Calculations and Logic

Chapter 6100: Introduction to Complex DAX Calculations and Logic

• Overview of complex calculations and logic in DAX.

Chapter 6250: Implementing Conditional Logic Using IF, SWITCH, and CALCULATE IN DAX

• Learning how to implement conditional logic using functions like IF, SWITCH, and CALCULATE in DAX.

Part 8: Specialized Functions

Chapter 6250: Working with SELECTEDVALUE and Other Related DAX Functions

• Understanding how to work with the SELECTEDVALUE function and other related functions in DAX.

Chapter 63750: Dynamic Column Generation Using SELECTCOLUMNS, ADDCOLUMNS, and SAME ROW FUNCTIONS IN DAX

• Exploring how to dynamically generate new tables or columns using functions like SELECTCOLUMNS, ADDCOLUMNS, and ROW in DAX.

Part 9: Alternatives to DAX for Certain Operations

Chapter 7: Use GROUPBY without DAX

• Learning how to perform groupings without directly using DAX functions.

Chapter 8: Power BI DAX SUMMARIZE vs GROUPBY

• Understanding the differences between SUMMARIZE and GROUPBY functions in DAX and when to use each one.

Part 10: Miscellaneous Topics

Chapter 9: Calculating Workdays Using DAX Networkdays Function

• Learning how to calculate workdays using the DAX Networkdays function.

This guide provides a structured learning path for those looking to deepen their understanding of Power BI and DAX for complex data analysis tasks. Each chapter in this outline is designed to build upon the previous knowledge, leading to an expert-level command over advanced data analysis capabilities within the Power BI ecosystem.