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PICQUERY: a high level query language for pictorial database management

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2 Author(s)
T. Joseph ; Dept. of Comput. Sci., California Univ., Los Angeles, CA, USA ; A. F. Cardenas

A reasonably comprehensive set of data accessing and manipulation operations that should be supported by a generalized pictorial database management system (PDBMS) is proposed. A corresponding high-level query language, PICQUERY, is presented and illustrated through examples. PICQUERY has been designed with a flavor similar to QBE as the highly nonprocedural and conservational language for the pictorial database management system PICDMS. PICQUERY and a relational QBE-like language would form the language by which a user could access conventional relational databases and at the same time pictorial databases managed by PICDMS or other robust PDBMS. This language interface is part of an architecture aimed toward data heterogeneity transparency over pictorial and nonpictorial databases

Published in:

IEEE Transactions on Software Engineering  (Volume:14 ,  Issue: 5 )