
Description: Practice and Learn SQL is a free, interactive website for learning SQL. It provides a browser-based SQL interface and challenges for writing and running queries on practice datasets.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: SQLBolt is an interactive online SQL tutorial that teaches the fundamentals of SQL, the popular language for working with relational databases. It offers a hands-on learning approach with numerous examples and exercises.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API