G - Physics – 06 – F
Patent
G - Physics
06
F
354/223
G06F 11/00 (2006.01) G06F 11/08 (2006.01)
Patent
CA 2020711
Abstract of the Disclosure A method and apparatus for testing the integrity of the data in a large data base is described. The constraints on the values of the data are represented by data descriptor records having the same format as the data records. These constraints specify intra-record constraints, inter-record constraints andconditional constraints, i.e., constraints which depend upon the satisfaction of some condition such as a particular data value. These descriptor records are compileddirectly into executable code which, in turn, can test each record of the data base for conformance with the constraints specified. Such code can be compiled "on the fly" as needed to test particular records, or compiled off-line and called whenever needed. The same facilities used to process the application data base records can thus be used to create, modify and delete the constraint descriptor records which may therefore form part of the same data base.
Bell Communications Research Inc.
Cassan Maclean
Davey Susan S.
LandOfFree
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