How to Enable Archiving

Perform the following operation step wise to enable Archiving in Oracle 10g archiving.

1. SQL> startup 
First start oracle to check that oracle is installed or not
2. SQL> shutdown immediate
Shutdown oracle to start in mount state
3. SQL> startup mount;
 Your oracle is now in mount state
4. SQL> alter database archivelog;
Use the above command to alter database to use archivelogs
5. SQL> alter database open;
Use command # 5 to open database