Practice - Validate User Activity for a Feature
Practice Questions
Test your understanding with targeted questions
What is the purpose of validating user activity?
💡 Hint: Think about how user actions inform business decisions.
What SQL command is used to count logins?
💡 Hint: It’s a function that summarizes values.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What SQL function would you use to count user logins?
💡 Hint: It tallies occurrences of a specified condition.
True or False: The GROUP BY clause is necessary when you are counting occurrences for unique entries.
💡 Hint: Consider how aggregation affects your dataset.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Suppose you have user activity data that reveals a drop in logins post a feature update. Formulate a strategy to investigate this.
💡 Hint: Consider qualitative and quantitative data to get a fuller picture.
You suspect that a specific demographic logs in more after certain marketing campaigns. How would you explore this using SQL?
💡 Hint: Think about how to isolate different groups in your analysis.
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Reference links
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