While Loop :
Set Serveroutput On;
DECLARE
v_no NUMBER := &no;
f NUMBER := 1;
n_temp NUMBER;
BEGIN
n_temp := v_no;
WHILE v_no > 0
LOOP
f := f * v_no;
v_no := v_no – 1;
END LOOP;
DBMS_OUTPUT.PUT_LINE(‘factorial of ‘ || n_temp ||’ is ‘ || f);
END;
/
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