mount a current controlfile

hi all,
i get ORA-00236, and i need to mount a current controlfile, but what does it mean to mount a control file?
(execuse my english).

Thanks.

There is nothing called mount control file,actually it is mounting database.When u mount the database oracle will look for control file.If it cannot find in the specified path given in the parameter file it will give this error.So check wheather the control file is present or not in the specified path.


Joe

from oracle documentation
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ORA-00236 snapshot operation disallowed: mounted controlfile is a backup

Cause: Attempting to invoke cfileSetSnapshotName, cfileMakeAndUseSnapshot, or cfileUseSnapshot when the currently mounted control file is a backup control file.

Action: Mount a current control file and retry the operation.
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as for your suggestion, the control file is already there.

what do you think could be the problem?

Regards.

Like Jomon suggested, Check the CONTROL_FILES parameter in your instance INI file. Check if all the control files specified are present.

hi,
The control files are there, the problem is not in their presence, i wish i knew what the problem is.

Regards.