Extended system catalogs must only be copied into new databases, and never into existing databases that contain user interface objects (such as forms or reports).

Copying extended system catalogs with the copy statement does not create new object IDs for the copied objects. If the target database already contains user interface objects, serious problems can result: different objects with the same object ID (for example, both a form and a report with the same object ID). Use the appropriate copy utility (copyform, copyrep) to copy objects to existing databases; the copy utilities generate a new object ID for each object copied into the target database.