Programs for u..

set serveroutput on;

DECLARE
I NUMBER:=0;
J NUMBER:=1;
V NUMBER;
L NUMBER:=2;
Limit NUMBER:=0;
BEGIN
DBMS_OUTPUT.PUT_LINE(I);
DBMS_OUTPUT.PUT_LINE(J);
Limit:=&Limit;
LOOP
L:=L+1;
V:=I+J;
I:=J;
J:=V;
DBMS_OUTPUT.PUT_LINE(J);
EXIT WHEN L=Limit;
END LOOP;
END;