DFQL: A Graphic Data Flow Query Language for Retrieval, Analysis, and Visualization of a Scientific Database
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DFQL: A Graphic Data Flow Query Language for Retrieval, Analysis, and Visualization of a Scientific Database
Published Date
1994-10
Publisher
Minnesota Department of Transportation
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Report
Abstract
This report describes the design, functionality, and implementation of a data flow query language (DFQL), that
visually represents a query as a directed acyclic data flow graph. The language is well suited for application
domains such as scientific databases, where data analysis and visualization need to be tightly coupled with data
retrieval, and the relationships between the entities are ill-defined. Unlike most visual query languages that are
declarative, DFQL is a functional language and thus provides the ability to combine data retrieval, analysis, and
visualization, intuitively in a single query.
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Minnesota Department of Transportation
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Dogru, Sait; Rajan, Vijay; Rieck, Keith; Slagle, James R.; Tjan, Bosco S.; Wang, Yuewei. (1994). DFQL: A Graphic Data Flow Query Language for Retrieval, Analysis, and Visualization of a Scientific Database. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/155934.
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