Service Roll Call
A easy SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- L3
Problem
The SRE team wants a quick count of how many unique services are being monitored by health checks.
Summary
The mesh is sprawling. Find out exactly how many services are actually running.
Practice This Problem
Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and grades it automatically.