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Friday, 29 November 2013

What are the types of triggers and how the sequence of firing in text item.



The different types of triggers are:

* Row triggers and statement triggers: specifies how many times the trigger should get executed – Once for every row or once for every triggering statement.
* Before and after triggers – Before trigger is fired before and update, insert or triggering statement is executed. After trigger is fired after the triggering statement is executed.
* Instead of Trigger- Here, the trigger is fired instead of executing the triggering statement
* Key triggers – fired on some key action.
* Mouse trigger- fired on some mouse navigation
* Navigational trigger – fired as a result of some navigation.

The sequence of firing in a text item are as follows::

a) pre - text
b) when new item
c) key-next
d) when validate
e) post text

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