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Failed Constraint Checks Count

A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.

Domain
SQL
Difficulty
medium
Seniority
junior

Problem

A downstream consumer flagged bad data from the quality-checks pipeline. Surface how many data quality checks with a constraint-related rule resulted in a failure.

Practice This Problem

Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a live PostgreSQL database and grades it instantly.