How can recover database after deleting/corrupted all control files in oracle .

If you have previously issued ALTER DATABASE BACKUP CONTROLFILE TO TRACE then use that file and modify.

If you don't have any backup of controlfile then you have to create a new one as below.

Try to use _allow_resetlogs_corruption = true parameter. and after open database , export the database and rebuild it .

you can follow this steps after deleting of active redolog file or all redolog files ;

see more here :

http://arjudba.blogspot.com/2008/08/recover-database-after-missing-online.html?showComment=1312122685666#comment-c288881305005051282
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