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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the PIVOT function do in SQL?
💡 Hint: Think about how we view data differently when switching axes.
Question 2
Easy
What is the result of unpivoting data?
💡 Hint: Consider the opposite of pivoting.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the PIVOT function do?
- Transforms columns into rows
- Transforms rows into columns
- Aggregates data
💡 Hint: Think about how you would analyze data across different categories.
Question 2
True or False: Unpivoting is the process of converting rows into columns.
- True
- False
💡 Hint: Remember the definitions we've discussed.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a dataset and write a comprehensive SQL query that performs both pivoting and unpivoting operations. Discuss the necessity of each transformation.
💡 Hint: Consider using example sales data with years and quarters.
Question 2
How would you structure an SQL query to dynamically pivot based on different years' data with varying years available?
💡 Hint: Look into SQL structure that allows for dynamic queries.
Challenge and get performance evaluation