Abstract
A graphical query language is a visual language which is intended as a database interface and which employs visual metaphors in order to express the semantics of a database language. The TableTalk graphical query language assumes an objectoriented data model and is based upon the notion of a functional query language. TableTalk is a diagrammatic language which uses a variety of visual representations to capture the semantics of a functional query language, including vertical and horizontal juxtapositioning of elements and spatial embedding. This paper presents an introduction to the TableTalk language as well as a description of how TableTalk might be used in a graphical query system.
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