Liangxu Linux

May 27, 2020 · Databases

Recovering a Missing Oracle Datafile: Step‑by‑Step Diagnosis and Fix

This article walks through diagnosing an Oracle database where a datafile is inaccessible, interpreting ORA‑01157, ORA‑01110, and ORA‑00600 errors, and outlines a practical recovery method using ODU scans, dd concatenation, and checkpoint correction.