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Pete Finnigan
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DBF FILE READERS
« on: Jun 8th, 2007, 6:15pm »
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Hello All:
I am somewhat new to Oracle and still learning. We have encountered an issue where during zipping and encrypting of our coldbackup files a few such as the undo01.dbf file was encrypted but the original remained un-encrypted and moved to tape. My question is simple, if a tape was ever lost is it possible for someone to view individual dbf files without having to restore through Oracle by using some sort of dbf viewer that will let them read any data in a text format.
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Pete Finnigan
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Re: DBF FILE READERS
« Reply #1 on: Jun 8th, 2007, 8:43pm »
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Hi,
 
Yes its possible. there are a number of individual people who have written block reading software. There are also a numbre of companies doing the same. Oracle has a tool called DUL that does the same. There are also tools intrnal to Oracle that can read blocks without the database being up. There is the BBED tool shipped with Oracle databases that does the same and finally there is Unix strings command.
 
Dont let you datafiles out of your site, even without a database the data can be read
 
cheers
 
Pete
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Pete Finnigan
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Re: DBF FILE READERS
« Reply #2 on: Jun 11th, 2007, 2:49pm »
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Thanks Pete. I came across MyDul and Dude which are examples of such programs.
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Pete Finnigan
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Re: DBF FILE READERS
« Reply #3 on: Jun 11th, 2007, 5:01pm »
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I would also watch this space as David L has started an open source project to create tools to perform forensic analysis of an Oracle database. he is also writing a book on the same subject. I would fully expect this toolkit to include tools capable of reading data directly from blocks.
 
cheers
 
Pete
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