我的目的就是:原来的字段名  --->  目标的字段名原来的:                           目标的:
 
table_1(                          table_1( 
         field_1 varchar2(30),             field1 varchar2(30),
         field_2 varchar2(30)              field2 varchar2(30)
        )                                 )哪位帮忙解决一下,谢谢