use dbname

sp_changedbowner 'new_user'
更改当前数据库的所有者。

--批量修改数据库对象的所有者

新建一个存储过程：changename
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[changename]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[changename]
GO

SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS OFF
GO

Create PROCEDURE dbo.changename
@OldOwner as NVARCHAR(128),--参数原所有者
@NewOwner as NVARCHAR(128)--参数新所有者
AS

DECLARE @Name as NVARCHAR(128)
DECLARE @Owner as NVARCHAR(128)
DECLARE @OwnerName as NVARCHAR(128)

DECLARE curObject CURSOR FOR
select 'Name' = name,
'Owner' = user_name(uid)
from sysobjects
where user_name(uid)=@OldOwner
order by name

OPEN curObject
FETCH NEXT FROM curObject INTO @Name, @Owner
WHILE(@@FETCH_STATUS=0)
BEGIN  
if @Owner=@OldOwner
begin
set @OwnerName = @OldOwner + '.' + rtrim(@Name)
exec sp_changeobjectowner @OwnerName, @NewOwner
end

FETCH NEXT FROM curObject INTO @Name, @Owner
END

close curObject
deallocate curObject
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO

以SA登陆查询分析器 ，选中你要的数据库
执行存储过程
执行exec Changename '原所有者','dbo'
或exec Changename 'dbo,'数据库所有者'

修改MS SQL表用户属性的命令 
 
可以用exec sp_changeobjectowner 'dataname.数据表','dbo'　把表或存储过程中的所有者都改成dbo