sql server中如何修改视图中的数据？

--创建视图语句 ---
create view V_EdsProd_1
as
    select a.Uid ProdId, a.Code ProdCode,a.Name ProdName,b.Name ProdUnit,0 as FlagState 
    from EdsProd a 
    left join EdsProdUnit b on a.ProdUnit = b.Uid
    where a.DownloadFlag=0 and a.State=9
go

--查询视图的数据---
select * from V_EdsProd_1

--修改视图数据的语法--
update V_EdsProd_1 set FlagState=1 where ProdId in(33921,33922);

--删除视图的语法--
drop view V_EdsProd_1;

--创建视图语句 ---
create view V_EdsProd_1
as
    select a.Uid ProdId, a.Code ProdCode,a.Name ProdName,a.DownloadFlag as FlagState 
    from EdsProd a 
    left join EdsProdUnit b on a.ProdUnit = b.Uid
    where a.DownloadFlag=0 and a.State=9
go