An important database of the company has encountered an issue and needs to be migrated to another server. This server is one of the three domain controllers within Domain A. To avoid conflicts between SQL and the domain controller, and to ensure the database runs stably on the target server after migration, it is necessary to delete the Active Directory on the target server. In other words, the server must be demoted from a domain controller to a member server.
However, the company previously carried out a comprehensive network migration, moving the entire network, including all servers and client machines, to a much larger Domain B. This means that the domain controller I need to operate on not only exists in Domain A (the domain it manages), but also resides within this larger Domain B. During that migration, for the purpose of global network integration, the DNS settings for all servers were configured to use the services of Domain B.
Thus, I now have no choice but to...