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 as original, the encoded version as encoded, and the decoded result as roundtrip.
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