In this post, you’ll learn more about the Oracle ErrorEXP-00025: dictionary shows no column for constraint string.number with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
EXP-00025: dictionary shows no column for constraint string.number
Reason for the Error EXP-00025: dictionary shows no column for constraint string.number
Export failed to gather column information about the referenced constraint from the data dictionary. The constraint may have been altered.
How to fix the Error EXP-00025: dictionary shows no column for constraint string.number ?
You can fix this error in Oracle by following the below steps
Retry the export and, if this error recurs, report it as an Export internal error to customer support.