Loading...
Single Service Owners
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
An infrastructure audit needs to identify owners responsible for exactly one service. Show the service name and how many services that owner manages (which will be 1), listed alphabetically by service name. Limit to the top 10.
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.