recover datafile

My datafile has not been backed up physically..It is deleted accidently..
Is there any way to recover..
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   Sorry to say, no backup means no way to recover. The only way is to build the data again.
I don't know if it's even possible and you'd most certainly need to contact a professional for this, but you can attempt a drive restore. Depending on how long it's been since the file was erased, they might be able to recover it.

Do you have all the archive log files since you db been put in archive log mode??
nobleitAuthor Commented:

Ok, If you have all the archive log then you can use the below method, you can create a new datafile as the datafile which been corrupted and recover the new datafile.

Eg :-

datafile   E:\oradata\test01.dbf  is been corrupted , i dont have a phyiscal file backup of it but i have all the archivelog since it been created, create a new file as the corrupted one..

sql> alter database datafile 'E:\oradata\test01.dbf '  offline immediate;

sql> alter database create datafile 'E:\oradata\test01.dbf ' as 'E:\oradata\newtest01.dbf' ;

sql > recover datafile 'E:\oradata\newtest01.dbf' ;

sql > alter database datafile 'E:\oradata\newtest01.dbf'  online;

Hope the above helps..



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