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Monthly Deployment Count
A easy SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- junior
Problem
For each month, count unique deployments where a deployment is identified by the combination of service name and version. Format months as 'YYYY-MM'. Return the month and the unique deployment count.
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.