The Token Census
A easy SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- L3
Problem
The platform team needs a headcount of how many token owners issued at least one API token during 2026. Return a single count of unique owners.
Summary
How many tokens are out there?
Practice This Problem
Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and grades it automatically.