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Lowest Latency per Service
A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- junior
Problem
For each service in the us-east-1 region, find the lowest latency recorded. Results should appear by latency descending, then alphabetically by service name.
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.