Restore or reset Oracle database (No Flashback features) I am running

Oracle Database 11g Release 11.2.0.4.0 - 64bit Production


Seem it not Enterprise edition, so I not able to use flashback features

SQL&gt; ALTER DATABASE FLASHBACK ON;
ALTER DATABASE FLASHBACK ON
*
ERROR at line 1:
ORA-00439: feature not enabled: Flashback Database

SQL&gt; SELECT flashback_on, log_mode FROM v$database;
FLASHBACK_ON |LOG_MODE     
-------------|-------------
NO           |NOARCHIVELOG 


As you see my database are running with NOARCHIVELOG mode and my filesystem is ext3

I had to do CRUD test with my system + another vendor. and after that I want to revert back  to the state of "restore point" (before testing). In short word, I don't want to keep test data inside my database. 

There is discussion here, but this is using flashback features. But how about for my case?

Is there any solution suitable for me?
If takeing a rman backup, remember that is has to be an offline backup. Expdp/impdp is an option only if your data is not too big.
You could do filesystem/VM snapshoting depending on your environment.

If your data is of any value to you, please activate the archivelog mode and take consistent backups of your database. The database does it‘s best to safeguard your data please don‘t sabotage the.effort by not takeing backups.