Business Intelligence with Microsoft Power BI - with Material - Upper Case, Lower Case and Proper Case

The video tutorial explains how to use case functions in Power Query within Power BI to clean and format data. It provides a practical example of transforming messy data into a consistent format using upper, lower, and proper case functions. The tutorial also covers loading data into Power BI, applying transformations, and finalizing the data for use. Key steps and tips for efficient data cleaning are highlighted throughout the video.

Why is it important to clean data before analysis in Power BI?

• To increase the number of columns

• To reduce the file size

• To make the data look colorful

• To ensure data accuracy and consistency

Which function in Power Query would you use to make all text lowercase?

• Reverse Text

• Uppercase

• Lowercase

• Capitalize Each Word

What is the effect of using 'Capitalize Each Word' in Power Query?

• All letters become uppercase

• All letters become lowercase

• The text is reversed

• The first letter of each word is capitalized

How can you select all columns in a Power Query table?

• Pressing Ctrl + A

• Clicking each column individually

• Using the 'Select All' button

• Typing the column names manually

What happens when you click 'Close and Apply' in Power BI after modifying a query?

• The query is reset to default

• The data is exported to Excel

• The changes are saved and applied

• The query is deleted