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Authors Deploying to Dev and Production
A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- mid
Problem
The release engineering team wants to identify authors who ship to both the dev and production environments (case-insensitive match). Show each qualifying author and how many of those two environments they have deployed to, listed alphabetically.
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.