Unicode Import in the Same Server

Hello,

I will be doing the Unicode Import in the same server.

After Unicode Export and before import, Deletion of /usr/sap and /sapdata(s) will solve my purpose, right?

I need not touch ORACLE_HOME as I would be using the same SID. I am planning not to install the Oracle DB S/w and the patch again.

Please let me know if there would be any issues?

Thanks!