Pivot Unpivot Quiz

What you'll be asked

1. What is the primary purpose of the 'Pivot' operation in data transformation?
2. You have a table where each month has its own column (e.g., Jan, Feb, Mar). You want to transform this into a 'long' format with one 'Month' column and one 'Value' column. Which operation should you use?
3. When performing a Pivot operation on a dataset, what is a common requirement for the columns that are not being pivoted?
4. If your dataset has columns 'Category', 'Region', and 'Sales', and you pivot the 'Region' column, what happens to the resulting table structure?
5. You are processing a dataset with 50 columns representing daily sales for the last two months. You need to perform a time-series analysis that requires all sales data in a single column. If you unpivot these 50 columns, how does the row count of your dataset change?

Answers and explanations come after you submit.