List each distinct product category alongside the total quantity sold for that category

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

Domain

SQL

Difficulty

medium

Problem

List each distinct product category alongside the total quantity sold for that category. NULL categories should be grouped together into one row. Join products and transactions.

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Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and grades it automatically.