ATabase> An action causing the automATic invocATion of a procedure, for instance to preserve referential integrity. 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]. (1995-02-22)