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PL/SQL:What is a Trigger? Name some instances

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PL/SQL:What is a Trigger? Name some instances when “Triggers” can be used.

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1780169608831412 2021-10-16 18:04:13 523 0
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  • 网络规划设计师、敏捷专家、CISP、ITSS服务经理、ACA全科目、ACP4项、ACE、CBP、CDSP、CZTP等。拥有 PRINCE2 Foundation/Practitioner、CCSK、ITIL、ISO27001、PMP等多项国际认证。 专利5+、期刊10+、知识产权师。核心期刊审稿人。
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    As the name indicates, ‘Trigger’ means to ‘activate’ something. In the case of PL/SQL, a trigger is a stored procedure that specifies what action has to be taken by the database when an event related to the database is performed.

    Syntax:

    TRIGGER trigger_name
     trigger_event
     [ restrictions ]
    BEGIN
     actions_of_trigger;
    END;
    
    2021-10-16 18:17:05
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