what are the loop events and what is the difference between
them

Answer Posted / smart varghese

AT FIRST - trigered when the loop exectutes for the 1st time
AT NEW <field> - trigered when the a new value is to the
field.
AT END OF <field> -trigered when the last occurance of the
value for the <field>.
AT LAST - trigered at last of the loop.
ON CHANGE OF - some what similiar to AT NEW.

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