Function - Oracle 10g

CREATE OR REPLACE FUNCTION TESTDAZ_F
  ( res IN int)
 
  RETURN  INT IS
      result INT;
   
     
     

BEGIN
      
        IF(res <10)  THEN result:=0;       
           ELSIF(res>10) THEN result:=1;
            ELSE result:=-1;
       
        END IF;
       

    RETURN result;

END;