Ohh god !, the X instance has a corrupt datafile, and we have no backup. and now q?
We called to support Oracle to resolve brown us, whose only solution they give you is to use your recovery tool DUL, his full name is Bernard's Data Unloader, and its creator is Bernard van Duijnen. DUL has the ability to read and extract datafiles data uncorrupted blocks, recovering a large portion of the stored information.
There is also an Open Source tool with similar characteristics:
PRM-DUL
http://www.parnassusdata.com/en
FlashUnload
http://sourceforge.net/projects/oflashunload/
And not Open as:
HESITATE
http://www.ora600.nl/custom_work.htm
Good luck with your recovery !!
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