4 - Real-World Use Cases for BAs
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Practice Questions
Test your understanding with targeted questions
What SQL function counts the number of records?
💡 Hint: Think about how we can summarize data.
What does the FROM clause specify in a query?
💡 Hint: It describes the source of data.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What SQL function is used to count records?
💡 Hint: It's for counting entries.
True or False: The HAVING clause works with raw data.
💡 Hint: Think about what GROUP BY does.
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Challenge Problems
Push your limits with advanced challenges
You are analyzing user login data for an app. Write a SQL query that could help you understand how many users logged in each month in 2024.
💡 Hint: Consider how to extract months and aggregate counts.
A company's marketing department wants to check which products had zero sales last month. Compose a SQL query that could help them find this information.
💡 Hint: Use LEFT JOIN to include all products, checking for those with no sales.
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