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Kopelog
The Kopelog System was developed by Kopel Re'em in order to provide a solution for a problem that comes up repeatedly in many applications:
how to record changes made to a database, including time and previous value, without making major amendments to the existing application, and without investing in developing a new application?
The solution offered by Kopel Re'em does not require changes to the existing application.
The Kopelog System works directly on the database.
Via a system of triggers and queries, Kopelog records any data that has
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been altered, added or deleted, and records previous values, time of modification, and name of the user who performed the modification.
With a minor addition to the application, the name of the modification routine can also be recorded.
The system includes simple queries that analyze the log file and present any modifications that were recorded.
Of course, the administrator is free to choose the tables and columns to be documented via the logging system.
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