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Three-Item Combinations

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
Seniority
mid

Interview Prompt

Given a products table with item names and costs, write a query to produce all unique 3-item combinations. For each combination, concatenate the names alphabetically (comma-separated) and sum the costs. Sort by total cost descending, then by name 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