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database An action causing the automatic invocation of a
A triggers goes into effect when a user attempts to modify
data with an insert, delete, or update command. A trigger can
instruct the system to take any number of actions when a
specified change is attempted. By preventing incorrect,
unauthorized, or inconsistent changes to data, triggers help
maintain the integrity of the database.
[Sybase SQL Server Release 10.0 Transact-SQL User's Guide].