because the principal "dbo" does not exist 问题解决方法

在做复制时，要删除一个发布，遇到错误：

Cannot execute as the database principal because the principal "dbo" does not exist, this type of principal cannot be impersonated, or you do not have permission.

解决方法：

这个库是我直接从一个2K5备份文件上恢复到2K8实例的，没有做其它设定。

因为我是在sa登录遇到此错误

 

USE master
GO
EXEC sys.sp_dbcmptlevel @dbname = N'MyDB',@new_cmptlevel = 90
GO
USE MyDB
GO
EXEC sys.sp_changedbowner @loginame = sa,@map = 'dbowner' 
GO