Mentorship User Pairs

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

Domain

SQL

Difficulty

medium

Seniority

mid

Problem

We're setting up an internal mentorship program. Find all pairs of users who have different age brackets, the same account status, and signed up in different years. Each pair should appear only once, with the smaller user ID first. Show both user IDs.

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