Sql视图创建语句及修改视图

create view [dbo].[AllUsers]
as
select    u.UserId,
        u.Firstname,
        u.Lastname,
        u.ts,
        am.Email,
        au.UserName
    from dbo.aspnet_Membership am
    inner join dbo.aspnet_Users au on au.UserId = am.UserId
    inner join dbo.[User] u on u.UserId = au.UserId

GO

 怎么给视图增加一个字段：

CREATE OR REPLACE VIEW v2 AS SELECT id , price * num as 总价 , num*1000 as 数量 from sheet1;
--这个 num*1000 as 数量 创建的时候忘了创建,现在把他添加到v2视图中?
--重新执行一下就行了，视图v2会重新创建。

alter view v2 as select id, price..., number...其实很重新创建差不多。

-- 获得视图程创建语句
select o.xtype,o.name,cm.text from syscomments cm 
inner join sysobjects o on o.id=cm.id 
where xtype ='v'
order by o.xtype,o.name,cm.text