1.
TRIGGERING EVENT OR STATEMENTS
2.TRIGGER CONSTRAINT
3.TRIGGER SECTION
1.
TRIGGERING EVENT OR STATEMENTS:
A triggering event or statements in the sql statements that causes a trigger to be find.a triggering event can be an insert,update,pr delete statement for a specific statements
1.
TRIGGERING CONSTRAINT OR RESTRICTION
A trigger restriction specify a boolean ecpression that must be truefor the trigger to fire
1.
TRIGGER ACTION
A trigger action is a procedure that conatains the sql statements and pl/sql code to be executed when a trigger statement is issued and the trigger restriction evalutes to true
