How to fix the Oracle error ORA-16806: supplemental logging is not turned on?

In this post, you’ll learn more about the Oracle ErrorORA-16806: supplemental logging is not turned on with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-16806: supplemental logging is not turned on

Reason for the Error ORA-16806: supplemental logging is not turned on

Supplemental logging was not turned on while there was a logical standby database in the configuration. This could happen either on the primary database or on the logical standby database that was being switched over to be the primary database.

How to fix the Error ORA-16806: supplemental logging is not turned on ?

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

Check the Data Guard broker log for more details. Issue the ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY, UNIQUE INDEX) COLUMNS to add supplemental logging.