Oracle Error Message
ORA-31525: could not find column string in CDC change table string.string
Reason for the Error
A column was missing for an imported Change Data Capture change table.
Solution
It is likely that this table existed before the import operation and import did not overwrite it. Determine whether the imported change table should supercede the original table. If so, drop the original table and retry the import. If not, the change table must have a different name in order to be imported.