Preview of practice Group By & Having (3.2) - SQL for Business Analysts - Business Analysis
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GROUP BY & HAVING

Practice - GROUP BY & HAVING

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Write an SQL query to count the number of products sold in each category.

💡 Hint: Remember to use GROUP BY after the SELECT statement.

Question 2 Easy

How would you find the total number of orders made by each customer?

💡 Hint: You'll need to aggregate by customer ID.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What clause do you use to group results based on a specific column?

HAVING
GROUP BY
ORDER BY

💡 Hint: Think about how you would summarize data.

Question 2

True or False: The HAVING clause can be used without GROUP BY.

True
False

💡 Hint: Remember what HAVING is designed for.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Draft a SQL query that identifies the three products with the highest sales, excluding any product that sold less than 50 units.

💡 Hint: Use GROUP BY and HAVING effectively to filter.

Challenge 2 Hard

Create a comprehensive report using SQL that highlights customer segments based on their number of purchases, categorizing them as 'Low', 'Medium', or 'High' based on thresholds you define.

💡 Hint: You’ll need to use a CASE statement along with GROUP BY and HAVING.

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Reference links

Supplementary resources to enhance your learning experience.