Show HN: SQL Protocol – learn SQL by running real queries, with 1v1 PvP

Category: devtools

Tags: sql-learning, gamification, interview-prep, pvp-game, data-engineering

Score: 6.7/10 (Innovation: 7, Technical: 6, Documentation: 6, Utility: 7)

SQL Protocol is a browser-based game that teaches SQL through a story-driven campaign, timed interview drills, and competitive 1v1 PvP matches against real live databases. It uniquely combines gamification with practical SQL execution, offering a structured path from beginner to advanced concepts while providing interview prep and competitive play.

Target audience: backend devs, data engineers, data analysts

Repository: https://sqlprotocol.com

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