
 CREATE OR REPLACE PROCEDURE OUT_PARAM (RAJ OUT VARCHAR2) IS
 x number := &x;
 y number := &y;
 BEGIN
 if x>y then
 DBMS_OUTPUT.PUT_LINE('THE GREATER VALUE IS :'||X);
 ELSE
 DBMS_OUTPUT.PUT_LINE('THE GREATER VALUE IS :'||Y);
 END IF;
 END OUT_PARAM;

____________________________________---
 DECLARE
 R VARCHAR2(30);
 BEGIN
 OUT_PARAM(R);
 DBMS_OUTPUT.PUT_LINE(R);
 END;
 /