doubt in exception and trigger,,, please help

how to solve this exception problem ?? please help

Begin
STMT 1;(im-material if this stmt is executed)
STMT 2;(but this stmt shud be executed)

EXCEPTION
when NO_DATA_FOUND then
raise_app_error(err.num,err.mesg);
END

how do i get the STMT 2 stmt to get executed.if suppose STMT 1 gives error.

also how many maximum number of trigger can a table have ?

put it in the exception clause

Code:

---

BEGIN
    BEGIN
        stmt1;
    EXCEPTION
        WHEN no_data_found THEN NULL;
    END;

    stmt2;
END;

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