Affiliation:
1. Tecnológico Nacional de México, Mexico & Instituto Tecnológico de Ciudad Madero, Mexico
Abstract
Currently, there exist tools for query composition that can be used by users who are not skillful in a DB query language such as SQL. Many tools are difficult to use, and others cannot answer some queries that inexperienced users would like to formulate. This chapter describes the new functionality developed for a query composition interface, which allows inexperienced users to compose queries that involve one, two, or three subqueries without the need to have any knowledge of neither SQL nor the database schema. The experimental tests showed that users could easily compose queries that involve one subquery. Furthermore, the new functionality preserves the domain independence of the previous version of the interface. Additionally, like the earlier version, the latest release offers language independence; that is, it can be configured for other languages similar to Spanish, for example English, French, Italian, and Portuguese.
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