向视图中插入数据的问题(通过触发器向视图插入数据)

两个表：
CREATE TABLE SCOTT.DTEMP (
VNAME VARCHAR2(20) NOT NULL PRIMARY KEY,
VID VARCHAR2(20) NOT NULL
)

CREATE TABLE SCOTT.DTEMPME (
VNAME VARCHAR2(20) NOT NULL PRIMARY KEY,
VSS VARCHAR2(20) NOT NULL
)

在这个基础上建立的视图：
CREATE VIEW SCOTT.BBVIEW AS
select dtemp.vname as pvname, dtemp.vid, dtempMe.* from dtemp,dtempMe

插入数据出现问题：
insert into bbview (pvname, vname, vid, vss) values ('101','102','102','101')
*
ERROR 位于第 1 行:
ORA-01779: 无法修改与非键值保存表对应的列

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假定两个表用vname字段连接：
CREATE VIEW SCOTT.BBVIEW AS
select dtemp.vname as pvname, dtemp.vid, dtempMe.*
from dtemp,dtempMe
where dtemp.vname = dtempme.vname;

--对view,每次只能向一个基表中插入数据
--在表dtemp中插入一行
insert into bbview (pvname, vid)
values ('101','102');

--在表dtempme中插入一行，vname相同
insert into bbview (vname, vss)
values ('101','102');

-----------------------------------------------------------------------------------------------------------------------------------

我找了一下资料，不知对你有没有启发：
（通过触发器的INSTEAD OF来修改视图）

CREATE TABLE customers_sj
(
cust NUMBER(6),
address VARCHAR2(50),
credit NUMBER(9,2)
);

CREATE TABLE customers_pa
(
cust NUMBER(6),
address VARCHAR2(50),
credit NUMBER(9,2)
);
CREATE TYPE customer_t AS OBJECT
(
cust NUMBER(6),
address VARCHAR2(50),
credit NUMBER(9,2),
location VARCHAR2(20)
);
CREATE VIEW all_customers (cust)
AS SELECT customer_t (cust, address, credit, ’SAN_JOSE’)
FROM customers_sj
UNION ALL
SELECT customer_t (cust, address, credit, ’PALO_ALTO’)
FROM customers_pa;

CREATE TRIGGER instrig INSTEAD OF INSERT ON all_customers
FOR EACH ROW
BEGIN
IF (:new.cust.location = ’SAN_JOSE’) THEN
INSERT INTO customers_sj
VALUES (:new.cust.cust, :new.cust.address,:new.cust.credit);
ELSE
INSERT INTO customers_pa
VALUES (:new.cust.cust, :new.cust.address, :new.cust.credit);
END IF;
END;

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还是被我弄出来了：
SQL> CREATE TABLE DTEMP (
2 VNAME VARCHAR2(20) NOT NULL PRIMARY KEY,
3 VID VARCHAR2(20) NOT NULL
4 )
5 ;

表已创建。

SQL> CREATE TABLE DTEMPME (
2 VNAME VARCHAR2(20) NOT NULL PRIMARY KEY,
3 VSS VARCHAR2(20) NOT NULL
4 );

表已创建。

SQL> CREATE VIEW BBVIEW AS
2 select dtemp.vname as pvname, dtemp.vid, dtempMe.* from dtemp,dtempMe where dtemp.vname=dtemp
me.vname;

视图已建立。
----------
建一个TRIGGER：
create or replace trigger BBTrigger
instead of insert on bbview
for each row
declare
-- local variables here
begin
insert into sa.dtemp values(:new.pvname,:new.vid);
insert into sa.DTEMPME values(:new.vname,:new.VSS);
end BBTrigger;

------------

SQL> insert into bbview (pvname, vname, vid, vss) values ('101','102','102','101');

已创建 1 行。

SQL> select *From dtemp;

VNAME VID
-------------------- --------------------
101 102

SQL> select *From DTEMPME;

VNAME VSS
-------------------- --------------------
102 101

SQL>
-------------------------------------------------------
OK!