1. Create the restore point after opening the database.
2. Open the database, shut it down cleanly, mount the database, and retry creating the restore point.
- The object specified did not exist in the source database.
- The user lacked the proper EXP_FULL_DATABASE or IMP_FULL_DATABASE role that would allow access to the object.
- The VIEWS_AS_TABLES object contained a type that is not supported with the VIEWS_AS_TABLES parameter. If importing from files, the user specified an object name that was not found in the dump file set.
1. The version of the type in the database was greater than the version of the type at export time because 1 or more attributes have been added or dropped from the type.
2. If the type existed in the database prior to the import operation, then its internal identifier may not match the internal identifier of the type from the export database. The identifiers must match for an import to succeed.
* Flashback the CDB and open the CDB with resetlogs. Restore the PDB later, and perform a complete PDB recovery.
* Flashback the CDB first. Restore and recover the PDB to the same system change number (SCN). Open CDB with resetlogs.