Return user_id, COUNT(DISTINCT product_id) AS unique_products, and COUNT(*) AS total_tx from transac

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

Domain

SQL

Difficulty

medium

Problem

Return user_id, COUNT(DISTINCT product_id) AS unique_products, and COUNT(*) AS total_tx from transactions. Filter to users where unique_products >= 2. Order by unique_products DESC, user_id.

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