Business Intelligence with Microsoft Power BI - with Material - Basic Text M Functions

The video tutorial introduces basic M functions in Power Query, focusing on text manipulation. It covers how to use functions like upper, lower, and proper case, and demonstrates extracting text before a delimiter. The tutorial also explores the advanced editor to understand backend processes in Power Query, providing insights into how steps are generated and managed.

What is the primary purpose of using M functions in Power Query?

• To clean and transform text data

• To design graphical user interfaces

• To create complex mathematical models

• To manage database connections

Which function would you use to convert text to uppercase in Power Query?

• text.lower

• text.capitalize

• text.proper

• text.upper

Which of the following is NOT a basic text function in Power Query?

• text.lower

• text.upper

• text.reverse

• text.proper

How can you extract the first name from a full name using a delimiter in Power Query?

• Using text.afterDelimiter

• Using text.split

• Using text.beforeDelimiter

• Using text.extract

What does the 'delimiter' refer to in text functions?

• A function to format text

• A method to sort data

• A character that separates text

• A type of data source

What is the role of the advanced editor in Power Query?

• To manage data sources

• To write and edit M code

• To create charts and graphs

• To visualize data

In Power Query, what does the 'rename columns' step indicate?

• Changing the data type of a column

• Deleting a column

• Adding a new column

• Modifying the name of a column