How to fix the Oracle error ORA-55563: number is not a valid undo segment number?

AbundantCode 1 week ago in Oracle 0

In this post, you’ll learn more about the Oracle ErrorORA-55563: number is not a valid undo segment number with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-55563: number is not a valid undo segment number

Reason for the Error ORA-55563: number is not a valid undo segment number

the given usn is not a valid one

How to fix the Error ORA-55563: number is not a valid undo segment number ?

You can fix this error in Oracle by following the below steps

check undo$

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