Question

You have imported a data source in Power BI Desktop, and now you plan to use Power Query to add some data transformations. You notice that the data model presents a huge list of queries that make it difficult to organize the transformation steps. Which best practice can you adopt in Power Query to solve this issue?

A) Rename queries with meaningful names.
B) Use comments to describe each transformation step.
C) Group queries based on their functionalities.
D) All of the above.

Answer 1

To organize transformation steps in Power Query within Power BI Desktop, adopt best practices such as renaming queries with meaningful names, using comments to describe each step, and grouping queries based on their functionality.

Step-by-step explanation:

When working with Power Query in Power BI Desktop, it is essential to maintain an organized data model, especially when dealing with a large list of queries. The best practice to solve the issue of organizing transformation steps in Power Query is D) All of the above. This means you should:

• Rename queries with meaningful names that reflect their content or purpose, which can help you and others understand the flow of data transformations.
• Use comments to describe each transformation step, providing context and facilitating comprehension for anyone reviewing the query.
• Group queries based on their functionalities, such as source data, intermediate transformations, and final output, which can help streamline the process and make it more manageable.

Adopting these practices allows for better organization, readability, and maintenance of your data model within Power BI.