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Average Fulfillment Lag
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 operations team is measuring fulfillment lag across the customer base. For each user, compute the average number of days between their transaction dates and today, only considering transactions with a positive amount. Present users from the longest average lag to the shortest.
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.