Abstract

Semi-Formal Query Language Interface (SFQI) is a user interface for interaction with database systems. SFQI is based on a Semi-Formal Query Language (SFQL) which is an enhancement of SQL. SFQI provides facilities for guiding users in performing database querying, such as formulating a valid database query, refining user-misconceptions and modifying database query misconstructions. The syntax of SFQL is not as rigid as in most database query languages. The system provides logical database navigation and users are not required to know, in detail, the structure of the database being queried.

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