title: Oracle Backup Database with sqlplus it's possible?
body: <p>I need to do some structural changes to a database (alter tables, add new columns, change some rows etc) but I need to make sure that if something goes wrong i can rollback to initial state:</p>
  
  <ul>
  <li>All needed changes are inside a SQL script file.</li>
  <li>I don't have administrative access to database.</li>
  <li>I really need to ensure the backup is done on server side since the BD has more than 30 GB of data.</li>
  <li>I need to use sqlplus (under a ssh dedicated session over a vpn)</li>
  <li>Its not possible to use "flashback database"! It's off and i can't stop the database.</li>
  </ul>
  
  <p>Am i in really deep $#$%?</p>
  
  <p>Any ideas how to backup the database using sqlplus and leaving the backup on db server?</p>