How to fix the Oracle error ORA-56929: Ending an upgrade window failed?

In this post, you’ll learn more about the Oracle ErrorORA-56929: Ending an upgrade window failed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-56929: Ending an upgrade window failed

Reason for the Error ORA-56929: Ending an upgrade window failed

Ending an upgrade window failed or there were tables containing TSTZ data which have not been upgraded.

How to fix the Error ORA-56929: Ending an upgrade window failed ?

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

Check alert or trace file for error(s) or complete upgrading of tables containing TSTZ data.