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

L4

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.

Summary

Ordered, then... waiting.

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