How To Open Database When UNDO Datafile Accidentally Deleted And No Backup (Doc ID 3074024.1)

Last updated on MARCH 03, 2025

Applies to:

Oracle Database - Enterprise Edition - Version 19.3.0.0.0 and later
Information in this document applies to any platform.

Goal

When the datafile of undo tablespace was accidentally deleted, database cannot be started:

If there is backup generated before this symptom, of course we need to use backup to restore database.
But in cases when there is no backup, we can try forcing database open.

But please keep in mind, there is no assurance of the success.

Solution

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In this Document

Goal

Solution

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How To Open Database When UNDO Datafile Accidentally Deleted And No Backup (Doc ID 3074024.1)

Applies to:

Goal

Solution

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!