By default, the CASCADE parameter is set to NO. This setting means that when mapping migrating users to a shared schema, users who own database objects in their old schemas are not migrated. For users who do not own database objects, their old database schemas are automatically dropped, and they are mapped to the new shared schema.
See Also:
Example A-3 for a syntax example to map users to a shared schema with CASCADE set to NO. Note that because NO is the default setting for CASCADE, this parameter does not have to be specified in the utility command syntax