      ( )      .  ,        ,    . ,                   .    .
            deptno  emp,              .        "Oracle:   ",   ,        .   ,         ,    ,           .
  INSTEAD OF
     , ,  ,       :
1.     :        INSERT, UPDATE  DELETE,       .
2.           ,       .            .    INSTEAD OF   .
 ,   ,      INSTEAD OF         ,  ,    .     ,   INSTEAD OF        INSERT, UPDATE  DELETE   ,       (  , ,    ).    :
       ,         NOT NUEL,   .
    ,  ,      :           /. -,  UPDATE  DELETE    .
     UNION ALL,     .        
3.    OractcS	33