
Description: ByteScout SQL Trainer is a free web app for learning SQL. It provides a browser-based interface for writing, running, and testing SQL queries on sample databases. The tool is good for beginners learning SQL.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: An interactive web-based PostgreSQL SQL tutorial that teaches the basics of SQL queries, statements, clauses, operators, functions, and more through hands-on examples and exercises.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API