How to fix the Oracle error ORA-55622: DML, ALTER and CREATE UNIQUE INDEX operations are not allowed on table “string”.”string”?

In this post, you’ll learn more about the Oracle ErrorORA-55622: DML, ALTER and CREATE UNIQUE INDEX operations are not allowed on table “string”.”string” with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-55622: DML, ALTER and CREATE UNIQUE INDEX operations are not allowed on table “string”.”string”

Reason for the Error ORA-55622: DML, ALTER and CREATE UNIQUE INDEX operations are not allowed on table “string”.”string”

An attempt was made to write to or alter or create unique index on a Flashback Archive internal table.

How to fix the Error ORA-55622: DML, ALTER and CREATE UNIQUE INDEX operations are not allowed on table “string”.”string” ?

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

No action required. Only Oracle is allowed to perform such operations on Flashback Archive internal tables.