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 Duration 14 hours

Course Outline

Overview of Power Query

  • Exploration of the Power Query user interface
  • Grasping the concepts of queries and applied steps
  • Navigating the integration features with Power BI and Excel

Establishing Data Source Connections

  • Importing data from Excel, CSV, and text files
  • Handling folder-based and structured data collections
  • Linking to online resources and database systems

Essentials of Data Cleaning

  • Eliminating errors and redundant entries
  • Filtering, sorting, and restructuring data formats
  • Addressing missing values effectively

Data Transformation and Reshaping

  • Techniques for splitting and consolidating columns
  • Performing pivot and unpivot operations
  • Applying grouping and aggregation methods

Integrating Multiple Queries

  • Distinguishing between appending and merging queries
  • Considering join types and underlying data structures
  • Constructing models from multiple data sources

Fundamentals of M Language

  • Comprehending M language formulas
  • Modifying queries via the Advanced Editor
  • Developing custom transformation scripts

Automation and Data Refresh

  • Building reusable transformation pipelines
  • Setting up automated refresh schedules
  • Optimizing query dependencies and performance

Advanced Methodologies

  • Implementing parameters within queries
  • Leveraging functions within M language
  • Applying best practices for scalable transformation architectures

Conclusion and Future Directions

Requirements

  • Proficiency in spreadsheet-based data operations
  • Hands-on experience with fundamental data analysis procedures
  • Knowledge of standard file formats, including CSV and Excel

Target Audience

  • Data professionals tasked with cleansing and preparing datasets
  • Business analysts managing regular data processing workflows
  • Individuals involved in data reporting and operational automation

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