A student_courses table stores multiple course names as a comma-separated list in one column
A medium Data Modeling mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Data Modeling
- Difficulty
- medium
Interview Prompt
A student_courses table stores multiple course names as a comma-separated list in one column. This violates 1NF. Redesign it so each enrollment is its own row, with atomic values in every column.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your data modeling solution with real code execution
- Get instant feedback and a hire/no-hire decision