SQL Notes — SQL Practice Platform

BEGINNER · BOOK 01

Beginner Notes

Foundational SQL concepts, table basics, and fundamental query syntax to get you started.

SELECT WHERE ORDER BY LIMIT GROUP BY HAVING

17 topics available

INTERMEDIATE · BOOK 02

Multi-table relationships, joins, groupings, and nested queries for deeper SQL mastery.

JOIN GROUP BY HAVING UNION DISTINCT CASE

15 topics covered

ADVANCED · BOOK 03

Analytical window functions, CTEs, indexing strategies, and query performance tuning.

CTE Window Functions Subqueries Indexes Query Optimization

18 topics covered