LaserSoft wrote:DBUA and manual upgrade scripts can only be used when there is no platform change. If a platform change is included, the data will have to be moved across OS versions using one of the 3 methods below.
1) Database Upgrade Assistant (DBUA)
2) Manual Upgrade
4) Data Copying
5) Golden Gate
Note 1 : Export/Import works for all versions. But for 10g and above, DataPump or Transportable Table Spaces methods are better.
Note 2 : you may need to perform additional pre-upgrade steps (adjust the parameter file for the upgrade, remove obsolete initialization parameters and adjust initialization parameters that might cause upgrade problems).