當恢複sqlserver bak檔案時，原始的使用者無法刪除的解決方案

你無法建立一個相同的使用者並mapping這個使用者到資料庫， 並且你無法刪除資料庫的使用者：DemoUser.
請運行以下指令碼， 之後你就可以刪除使用者：DemoUser.然後建立使用者（DemoUser.）並mapping到資料庫。
指令碼： 複製代碼 代碼如下: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