G - Physics – 06 – F
Patent
G - Physics
06
F
354/40
G06F 7/08 (2006.01) G06F 7/24 (2006.01) G06F 17/30 (2006.01)
Patent
CA 1108762
FILE QUALIFYING AND SORTING SYSTEM Abstract of the Disclosure A system for sorting records of a file to find the record in the file having the highest or lowest data in a first field of the records, provided that the record quali- fies to be sorted in accordance with the data in a second field of the records. A plurality of such records are stored on a plurality of blocks on a segmented serial storage device. Random access memory used by the system to accomplish the qualifying and sorting is a small fraction of the size of the file. In the preferred embodiment, a multiplicity of qualifying fields and sort fields may be specified. The system may typically be used, for example, to provide names, addresses and other variable text to be merged with form letter text in a printing system to sequen- tially print automatic form letters in the alphabetical or zip code order of their intended recipients. This informa- tion can also be used to list a qualified sublist of a master file in the order specified by the sort information.
295495
Berger David A.
Welch John W.
Gowling Lafleur Henderson Llp
International Business Machines Corporation
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