建表：

create table User_Info (

   ID                   INTEGER                         not null,

   UserName            VARCHAR(30)                     not null,

   PassWord            VARCHAR(20)                     not null,

   CreateDate          Date                            not null,

   Status              INTEGER                         not null,

   constraint PK_User_Info primary key (ID)

);

create table User_Info_temp (

   ID                   INTEGER                         not null,

   UserName            VARCHAR(30)                     not null,

   PassWord            VARCHAR(20)                     not null,

   CreateDate          Date                            not null,

   Status              INTEGER                         not null,

   constraint PK_User_Info_temp primary key (ID)

);

触发器写法：

create or replace trigger UserToTemp after insert or update or delete

on user_info for each row

declare

    integrity_error exception;

    errno            integer;

    errmsg           char(200);

    dummy            integer;

    found            boolean;

   

begin

if inserting then

    insert into User_info_temp(ID,UserName,PassWord,CreateDate,Status) values(:NEW.ID,:NEW.UserName,:NEW.PassWord,:new.CreateDate,:NEW.Status);

elsif updating then

    update User_info_temp set ID=:NEW.ID,UserName=:NEW.UserName,PassWord=:NEW.PassWord,Status=:NEW.Status where id=:OLD.id;

elsif deleting then

    delete from User_info_temp where id=:OLD.id;

end if;

exception

    when integrity_error then

       raise_application_error(errno, errmsg);

end;

测试数据：

insert into user_info(ID,UserName,PassWord,CreateDate,Status)values(1,'xier','222',to_date('2008-10-11','yyyy-mm-dd'),1)

update user_info u set u.status=3,u.username='xier' where u.id=1

delete from user_info u where u.id=1