Fundamentals In Power Query And M - a detailed guide

The Fundamentals in Power Query and M detailed guide by Enterprise DNA offers a thorough exploration of essential concepts and features in Power Query and the M language. This guide encompasses 21 primary topics, beginning with an introduction to Power Query, highlighting its integration with Power BI and Excel. It details the Power Query Editor interface, covering its ribbons, menus, and configuration settings. Users are guided through utilizing the M formula language for data transformation, error handling, writing and editing M code, and creating custom functions. The guide also focuses on optimization strategies and best practices for efficient M coding, managing data models, and troubleshooting formulas.

Additionally, the guide addresses advanced data manipulation techniques using M, managing relationships within Power Query, and handling totals and virtual tables. It provides practical advice for optimizing data processing, such as reducing data load, enabling query folding, and leveraging built-in functions. With numerous pro tips and practical examples, users learn to effectively clean, transform, and enhance their data. By following this guide, users can develop a deep understanding of Power Query's functionalities, improve their data modeling capabilities, and enhance the performance and accuracy of their data transformations within Power BI.