In this post, you’ll learn more about the Oracle ErrorORA-55642: Table has column names that are reserved by Flashback Data Archive with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-55642: Table has column names that are reserved by Flashback Data Archive
Reason for the Error ORA-55642: Table has column names that are reserved by Flashback Data Archive
The table on which Flashback Data Archive is being enabled contains column(s) with names that are reserved by Flashback Data Archive.
How to fix the Error ORA-55642: Table has column names that are reserved by Flashback Data Archive ?
You can fix this error in Oracle by following the below steps
Rename column name before retry.