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Top Product Categories
A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- mid
Problem
Find the top 3 product categories by total transactions. If categories are tied at a cutoff rank, include all of them. Category info comes from the products table. Return the category, transaction count, and rank.
Practice This Problem
Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a live PostgreSQL database and grades it instantly.