Feature Flag Engagement Impact

A hard SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.

Domain

SQL

Difficulty

hard

Seniority

L5

Problem

The growth team wants to understand session activity around feature flag launches. For each feature flag, return the flag name, a display name (underscores replaced with spaces), whether the flag is currently enabled, and how many user sessions started in the 30 days following the flag's created date. Flags with zero qualifying sessions should still appear with a session count of zero. Sort by flag name.

Summary

Flags on versus flags off. The engagement gap.

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