Aggregations & GROUP BY — Roadmap Step & Resources
Summarizing data with COUNT, SUM, AVG and grouping rows into categories
- Level: beginner
- Estimated time: 1 days
- Roadmap: Data Science
Before this step
Study resources
- SQL GROUP BY (Article) — W3Schools' clear reference for GROUP BY and aggregate functions.
- SQL Aggregate Functions Explained (Video) — freeCodeCamp's SQL course covers GROUP BY and aggregation in depth.
Part of
- SQL & Databases — section
- Data Science roadmap — the full learning path