From event_data, count events per utm_source using JSON_EXTRACT_SCALAR(properties, '$.utm_source')
A medium SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- medium
Interview Prompt
From event_data, count events per utm_source using JSON_EXTRACT_SCALAR(properties, '$.utm_source'). Name the count events. Exclude rows where utm_source IS NULL. Order by events descending, then utm_source.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your sql solution with real code execution
- Get instant feedback and a hire/no-hire decision