What it does
SQLBolt teaches SQL through interactive lessons covering selection, filtering, joins, aggregates and table changes.
Begin with SELECT and move through constraints and sorting before attempting joins. The ordered lesson menu helps you build one query concept on another. Later lessons introduce changes to data and tables, which are different tasks from reading results. Use the review sections to check the earlier query ideas before continuing. Lessons and exercises run in the browser. The teaching concentrates on common SQL; individual database products can differ in extra features and supported data types.
Sources
- SQLBolt - Learn SQL - Introduction to SQL (Oct 26, 2026)