Introductory tutorial to the M language used in Power BI for the definition of ETL processes. In this tutorial we will review the basic concepts involved in writing this code: language syntax, data types, function creation...
Content
- Presentation
- The M language
- Writing M code
- Structure of an M query
- Steps in the ETL process
- Step formula evaluation
- Expressions and values
- Primitive types
- Comments
- Features
- Standard features
- The each keyword
- conclusion
