Boots – shoes – and leggings
Patent
1988-01-21
1990-03-13
Anderson, Lawrence E.
Boots, shoes, and leggings
364200, 3642832, 3642821, G06F 1540
Patent
active
049087592
ABSTRACT:
A process for transitioning a hierarchical input database to create a hierarchical output database. The processing occurs generally in two stages. During the first stage, information contained in user-specified driver tables is utilized to extract only pertinent data from the input database and thereby produce intermediate data in a form accessible by the second stage. During the second stage, information from the driver tables is applied to the intermediate data to map this data to the required output form representative of the hierarchical output database. With this processing approach, the driver tables are derived and then maintained independently of underlying software that executes under control of the driver tables. A database conversion is efficiently effected by preparing the driver tables and then invoking execution of the common software embodying the extracting and mapping subprocesses.
REFERENCES:
An Introduction to Database Systems, by C. J. Date, Third Edition, published by Addison-Wesley, 1981, pp. 273-386.
"Data Extraction, Processing, and Restructuring System; Program Description/Operations Manual", published by IBM Corporation, 1979.
Alexander, Jr. Everett L.
Carlin Allan R.
Fiore Alice L.
Mackiewicz Walter A.
Anderson Lawrence E.
Bell Communications Research Inc.
Falk James W.
Peoples John T.
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