Recover Database after all control files are lost

Shutdown the database if it’s not shutdown yet.

>Shutdown abort

You Must know the all datafile location or you have TRACE of Controlfile.

Note: how to create trace of control file

> alter database backup control file to trace

A text trace file will be create to udump directory

Or

> alter database backup controlfile to 'e:\tmp\ctrl.ctl';

> Startup nomount;

> RECOVER DATABASE
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> ALTER DATABASE OPEN;
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> ALTER TABLESPACE TEMP ADD TEMPFILE 'D:\oracle\product\10.2.0\orcl\TEMP01.DBF'
     SIZE 29360128  REUSE AUTOEXTEND ON NEXT 655360  MAXSIZE 32767M;
=========================================================================

> ALTER TABLESPACE TEMP ADD TEMPFILE 'D:\oracle\product\10.2.0\orcl\TEMP01.DBF'
     SIZE 29360128  REUSE AUTOEXTEND ON NEXT 655360  MAXSIZE 32767M;
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