> I've even seen a few cases where people had data loss which had either gone unnoticed or been sporadic enough that they assumed it was user error or random co

> I've even seen a few cases where people had data loss which had either gone unnoticed or been sporadic enough that they assumed it was user error or random corruption. I've gotten to troubleshoot this specific condition myself. Amusingly, the big thing that saved us was that we could use lingering redundancy in a poorly normalized schema to rebuild some relationships that should've been enforced by the database.