Duplicate Noduplicate Specifies a new database with the same content but different identity from that of the original database. The default is the Noduplicate qualifier. The Duplicate qualifier creates a copy of your database that is not expected to remain in sequence with the original database. Note that you cannot interchange after-image journal (.aij) files between the original and duplicate copy of the database because each database is unique. You can create a duplicate database when you use the Duplicate qualifier or create the original database again when you use the Noduplicate qualifier. The Duplicate qualifier conflicts with the Incremental, Area, and Online qualifiers.