Answer / ankur aggarwal

shutdown the database
copy the existing control file by using copy command of OS.
paste it another location where you want to create it.
define the path in init.ora file ("control file" Parameter)
startup database.

Answer / azhar ali khan

1)Check number of controlfiles.
SQL>select name from v$controlfile.
Suppose there are two controlfiles,control01.ctl and control02.ctl.Check the path of controlfiles.
SQL>Shut immediate.
Go to the controfile location.
$ls
control01.ctl control02.ctl
$cp control01.ctl control03.ctl
$ls
control01.ctl control02.ctl control03.ctl

Now open parameter file init<sid>.ora .
$vi init<sid>.ora
control_files='/home/..../control01.ctl','/home/.../control02.ctl','/home/...../control03.ctl'

save and quit
SQL>startup
SQL>Now check the name and path of controfiles.

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