Missing Email for Non-Active Users

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

Domain

SQL

Difficulty

easy

Seniority

L3

Problem

A downstream notification pipeline is failing for a subset of users. You traced the issue to users from 2026 who have no email on file but whose account is not active. Find those user IDs.

Summary

No email on file. No recent activity. Something smells off.

Practice This Problem

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