Issues in data base management for APL2

Authors:
R. D. Stockbridge;A. Eisner;R. Jernigan
Affiliations:
Johns Hopkins Univ., Laurel, MD;Johns Hopkins Univ., Laurel, MD;Decision Resource Systems, Columbia, MD
Venue:
APL '88 Proceedings of the international conference on APL
Year:
1987

Citing 1
Cited 1

A generalised data base interface for APL

APL '86 Proceedings of the international conference on APL

APL: The language of science and management

APL '88 Proceedings of the international conference on APL

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Abstract

APL2 is an excellent user interface to the dynamic facilities of IBM's DB2, a relational data base management system for the MVS operating system. An APL2/DB2 application has been written that utilizes the Generalized Command Syntax (GCS) of Jernigan for data base block processing. Our experience has led to the identification of several issues whose resolution affects the performance of our application. One issue concerns the use of large nested arrays in APL2. Another addresses the design of an efficient and effective data base update procedure that employs the current AP (auxiliary processor) 127, which is the interface between APL2 and DB2. These issues are formulated and discussed. The potential benefit of modifying AP 127 is suggested.