The Table Thief

A medium Python mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.

Domain
Python
Difficulty
medium
Seniority
L4

Interview Prompt

You're building a data-lineage tool that needs to know which tables each query reads. Given a SQL query string `sql`, return the table names that follow its FROM and JOIN keywords.

Summary

Somewhere in that query, tables are hiding.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write and run your Python against test cases
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision