How to Recover a Database After Its Rules Have Been Broken

The constraint was re-enabled in twenty minutes. The audit of what passed through while it was off took nine weeks. This video covers what database recovery actually looks like after rules have broken down — why restoring the constraint is the fast part, why the data that arrived during the gap is the hard part, and what a structured approach to rebuilding trust in a database looks like. Covers constraint recovery, database remediation, data triage after constraint failure, foreign key repair, NOT VALID constraint staging, and post-migration integrity audits.

We look at a 2022 UK insurance platform that left foreign key constraints disabled for five months following a claims system migration. The gap was discovered accidentally by a customer service representative. By then, 11,400 claim records existed with no valid policy reference. The constraint was restored in an afternoon. Remediating the records took eleven weeks and three full-time staff months, with 340 records ultimately irreconcilable. We cover why auditing scope before re-enabling constraints matters, how triaging affected data into clean, recoverable, and unrecoverable categories shortens recovery time, and why the constraint restoration and the data remediation are two separate problems that require two separate timelines.

Видео How to Recover a Database After Its Rules Have Been Broken канала Data Explained