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

Domain
SQL
Difficulty
medium
Seniority
junior, mid

Problem

The API gateway team is cracking down on abusive traffic patterns. Find the two clients generating the most blocked requests, where a request counts as blocked when the blocked value is greater than 0. Show each client and their blocked count, sorted from most blocked to least.

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.