ORA-16806

Error: ORA-16806: Supplemental logging is not turned on

Causa: Supplemental logging is not turned on while there is a logical standby database in the configuration. This could happen either6854// on the primary or on the logical standby that is being switched over to the primary.

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