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《Electronics World》 2012-23
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触发器的用法

Trigger is a special type of stored procedure,it binds specific table,when trying to change it to protect data operation occurs automatically performs.The trigger can enforce referential integrity,data associated with the logical consistency,can achieve complex business rules.This article mainly introduces introduce three kinds of commonly used INSERT,UPDATE trigger trigger trigger trigger,DELETE usage examples.
【CateGory Index】: TN783
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