Data file corrupted; you wanted to recreate, yet there is no backup in place.

Hello

I made a mistake to copy 17 GB of the data file of a mount pt to others, because of this, the data file has been corrupted (because I assume that only 2 GB can be copied directly, more RMAN must be used), but unfortunately I made this mistake. I don't have a current backukp available.
Is it possible to recreate or recover my data? Please help me with helpful suggestions.

784786 wrote:
I have old backup. which is not very valid for this particular file. However, I got database archive log. I guess I can recreate the data file. Can you please tell me how to do this.

What version of oracle?
What do you mean "corrupted file"?
How to identify the actually corrupted data files?

If you have the copy of backup data missing/lost files and archive logs you can RESTORE the DATA file and RECOVER the DATA file.
If you do not have a backup but the newspaper archive enough so

sqlplus "/as sysdba"
alter database create datafile  as ;
recover datafile ;

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