Business Intelligence with Microsoft Power BI - with Material - Year, Quarter, and Day Functions

The video tutorial covers the use of Power Query date functions in Power BI. It begins with setting up an Excel file and preparing it for use in Power BI. The tutorial then explains how to load and transform data using Power Query, focusing on extracting date components such as year, quarter, month, and day. It also discusses the predefined steps in Power Query and how to use various date and time functions to manipulate data effectively.

Why is it important to close the Excel file before importing data into Power BI?

• To save memory space

• To prevent data corruption

• To ensure data is up-to-date

• To avoid file access conflicts

What does the 'change type' step in Power Query do?

• It changes the column names

• It assigns a data type to the column

• It deletes unnecessary columns

• It duplicates the column

Which data types can Power Query automatically identify?

• Audio files

• Geographical data

• Images and videos

• Date, text, and numbers

How can you extract the year from a date column in Power Query?

• By using the 'Add Column' feature and selecting 'Year'

• By changing the data type to text

• By manually typing the year

• By using a custom formula

Why might the date and time functions be disabled for a column?

• The column is empty

• The column is hidden

• The column contains numerical data

• The column is locked