Data processing: database and file management or data structures – Database design – Data structure types
Patent
1997-05-12
1999-07-27
Amsbury, Wayne
Data processing: database and file management or data structures
Database design
Data structure types
707101, G06F 1730
Patent
active
059307820
ABSTRACT:
The present invention relates to a method for modifying and operating a computer system to perform date operations including the steps of storing at least one subroutine for performing the date operation, modifying the application program to include a call to at least one of the subroutines, the call operative to pass at least one date field representative of at least two dates to the subroutine which has been called, wherein the subroutine determines which of the at least two dates corresponds to the date field according to a predetermined criteria performs a date operation on the date field, and returns a code to the application program for use by the application program in its further operations.
REFERENCES:
patent: 4068300 (1978-01-01), Bachman
patent: 5289393 (1994-02-01), Kaya
patent: 5367704 (1994-11-01), Hasuo et al.
patent: 5473772 (1995-12-01), Halliwell et al.
patent: 5490249 (1996-02-01), Miller
patent: 5719826 (1998-02-01), Lips
patent: 5740442 (1998-04-01), Cox et al.
LE/370 Programming Guide, pp. 70-72, 485-487, 492, 493, 495 and 496 (date unknown-admitted prior art), no date.
Amsbury Wayne
Lewis Cheryl
LandOfFree
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