当恢复sqlserver bak文件时，原始的用户无法删除的解决方法

你无法创建一个相同的用户并mapping这个用户到数据库， 并且你无法删除数据库的用户：demouser.
请运行以下脚本， 之后你就可以删除用户：demouser.然后创建用户（demouser.）并mapping到数据库。
脚本：

go
alter authorization on role::[aspnet_membership_basicaccess] to [dbo]
go
go
alter authorization on role::[aspnet_membership_fullaccess] to [dbo]
go
go
alter authorization on role::[aspnet_membership_reportingaccess] to [dbo]
go
go
alter authorization on role::[aspnet_profile_basicaccess] to [dbo]
go
go
alter authorization on role::[aspnet_profile_fullaccess] to [dbo]
go
go
alter authorization on role::[aspnet_profile_reportingaccess] to [dbo]
go
go
alter authorization on role::[aspnet_roles_basicaccess] to [dbo]
go
go
alter authorization on role::[aspnet_roles_fullaccess] to [dbo]
go
go
alter authorization on role::[aspnet_roles_reportingaccess] to [dbo]
go
go
alter authorization on schema::[db_owner] to [dbo]
go
go
alter authorization on schema::[db_owner] to [db_owner]
go