Duplicate DQ Check Records

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

Domain

SQL

Difficulty

medium

Seniority

L3

Problem

A downstream team reported that some entries in the data quality checks table appear more than once for the same table and column combination. Surface any table-and-column pairs that have multiple records, along with the duplicate count.

Summary

Passed QA twice. That's the problem.

Practice This Problem

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