Worst Table Per Year by DQ Failures
A hard SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- hard
- Seniority
- L4
Problem
For each year, surface the table with the most failed data quality checks and its failure count.
Summary
Every year has a worst table.
Practice This Problem
Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and grades it automatically.