In databases or distributed systems, you might have foreign keys. Example: A document version chain where each record has previous_version_uuid and next_version_uuid , forming a 10-node linked list.
Introduced a wizard-style interface, the ability to specify a SID, and computer renaming options. newsid v4 10 link
have a unique SID. If you cloned a hard drive to multiple PCs without changing the SID, "bad things" would supposedly happen—security holes, network conflicts, or even system crashes. Richard M. Hicks Consulting NewSID v4.10 In databases or distributed systems, you might have