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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does CTE stand for?
💡 Hint: Think of temporary results in SQL.
Question 2
Easy
Write a simple CTE to get total sales from an orders table by region.
💡 Hint: Remember to use the SUM function and GROUP BY.
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 keyword is used to define a CTE?
- CREATE
- WITH
- DEFINE
💡 Hint: Think about how we start a new SQL block.
Question 2
CTEs can reference themselves. Can they be used for hierarchical data?
- True
- False
💡 Hint: Consider what recursion allows us to do.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a CTE that computes the average sales for each region and returns those above a certain threshold, while using ranking to list them.
💡 Hint: Consider how averages are calculated with GROUP BY.
Question 2
Create a recursive CTE that traces a product's lineage through categories and subcategories, displaying each step.
💡 Hint: Focus on constructing the category tree with proper joins.
Challenge and get performance evaluation