oracle11g Database recovery After reinstalling the system (original Oracle installation directory is still in)

1. Install with previous version of the database, the installation directory selection is the same as before.

2. Turn off all services from Oracle.
   

3. Copy the database folder from the original Oracle_home directory to the current directory (it is a good idea to back up the current database folder).

4. Copy the Oradata, admin, Fgtoollogs, Flash_recovery_area folder under the original oracle_base, overwriting the current directory (please backup first).

5. Open the service.

6. Run command Sqlplus/as SYSDBA;

7. Run command shutdown

8. Run command startup

9. Restore success.
   

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oracle11g Database recovery After reinstalling the system (original Oracle installation directory is still in)