From users, return EXTRACT(YEAR FROM CAST(signup_date AS DATE)) AS signup_year and COUNT(*) AS signu

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 users, return EXTRACT(YEAR FROM CAST(signup_date AS DATE)) AS signup_year and COUNT(*) AS signups grouped by signup_year. Order by signup_year ascending.

How This Interview Works

1. Read the vague prompt (just like a real interview)
2. Ask clarifying questions to the AI interviewer
3. Write your sql solution with real code execution
4. Get instant feedback and a hire/no-hire decision