Perform a full encoding round-trip on the string 'DataEngineer2024': encode it to Base64, then decod

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

Perform a full encoding round-trip on the string 'DataEngineer2024': encode it to Base64, then decode it back. Return the original, the encoded version, and the decoded result.

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