Migrating spatial data refers to moving or copying Oracle Spatial and Graph geometry objects from one Oracle database to another. (The databases can have the same or different Oracle Database release numbers.)
If you are migrating spatial data using database links, export/import, Oracle Data Pump, or transportable tablespaces, the MDSYS schema must already exist in the destination database.
In limited situations you might also need to use the SDO_MIGRATE.TO_CURRENT subprogram (described in SDO_MIGRATE Package (Upgrading) ). See the Usage Notes for that subprogram.