Oracle 触发器
在Oracle中，您可以定义对关联表发出INSERT，UPDATE或DELETE语句时隐式执行的过程。这些过程称为数据库触发器。
根据它们的触发点，有六个CREATE TRIGGER语句。
Firing Point: BEFORE
BEFORE INSERT TRIGGER
BEFORE UPDATE TRIGGER
BEFORE DELETE TRIGGER
Firing Point: AFTER
AFTER INSERT TRIGGER
AFTER UPDATE TRIGGER
AFTER DELETE TRIGGER
Trigger Topics
