How to fix the error ORA-00026: missing or invalid session ID?

In this post, you’ll learn more about the Oracle ErrorORA-00026: missing or invalid session ID with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-00026: missing or invalid session ID

Reason for the Error ORA-00026: missing or invalid session ID

Missing or invalid session ID string for ALTER SYSTEM KILL SESSION.

How to fix the Error ORA-00026: missing or invalid session ID ?

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

Retry with a valid session ID.

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