WebSQL is an interactive Internet tool for teaching Structured Query Language (SQL). It can be accessed from a Web Server running at the University of Minnesota or downloaded and installed on a Web Server at any accredited educational institution. It facilitates the learning of SQL by providing an interface to major database management systems for query execution on the web. The accompanying interactive SQL tutorial allows students to invoke the WebSQL query interface and dynamically modify and execute any example query.
Allen, Grove N., "WebSQL: A Demonstration of an Interactive Web Tool for Teaching SQL" (2000). AMCIS 2000 Proceedings. 385.