Other triggers used in Oracle Reports?

Apart from the Five Global Report Triggers, there are three other types of triggers :
* Validation Triggers
* Format Triggers
* Action Triggers

What is Validation Trigger?

Validation Triggers : Validation Triggers are PL/SQL functions that are executed when parameter values are specified on the command line and when you accept the Runtime Parameter Form. (Notice that this means each Validation Trigger may fire twice when you execute the report). Validation Triggers are also used to validate the Initial Value of the parameter in the Parameter property sheet.

What is Format Trigger?
Format Triggers : Format Triggers are PL/SQL functions executed before the object is formatted. The trigger can be used to dynamically change the formatting attributes of the object.

What is Action Trigger?

Action Triggers : Action Triggers are PL/SQL procedures executed when a button is selected in the Previewer. The trigger can be used to dynamically call another report (drill down) or execute any other PL/SQL.

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