Re: Recovery Scenarios -> Consolidated

Finally, I have figured out a Freeware Hex editor at http://www.hhdsoftware.com/hexeditor.html. Using this freeware, I could open Oracle data files (while database is shutdown) and corrupt them (for testing, of course).

1. BBED (Block Editor) did not work as I do not have password. I believe only Oracle support will have this password.
2. We can't corrupt/ alter the data files on Windows, because Oracle.exe locks these files, while database is open.

I have developed a script to alert me of corruptions, which I have started using right now. Let me know if it is useful to you.

HTH, Krishna

• Original Message ----- From: Yechiel Adar To: Multiple recipients of list ORACLE-L Sent: Wednesday, December 11, 2002 10:14 AM Subject: Re: Recovery Scenarios

  Hello Krishna

  I just tried to open a datafile using textpad and got sharing violation.   I tried opening using notepad and it worked.

  For obvious reasons (not trying to test recovery) I did not change and save the file with notepad.

  Yechiel Adar
  Mehish

• Original Message ----- From: Krishna Rao Kakatur To: Multiple recipients of list ORACLE-L Sent: Wednesday, December 11, 2002 2:00 AM Subject: Recovery Scenarios

    Hi,

    Could you please suggest me how to corrupt a data file, for testing recovery.

    I am trying to test Block Recovery with my Personal Oracle 9i on Windows Me. I am not able to open or overwrite the files because oracle.exe locks them.

    Thanks, Krishna

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Author: Krishna Rao Kakatur
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application/octet-stream attachment: alert_corruption.ksh