cancelling a standby database

HI, I´m trying to make a normal databas out of a current standby db. I have entered recover database cancel; and then I shut it down. A startup I recieved

ORA-01666:Controlfile is for a standby database

Now I wonder if it is possible to make a trace backup controlfile file and remake it.?

Hopeful of answers

Hi,

You need to change the controlile status from standby to normal.

You can do this by issuing "alter database activate standby database'; command in mount mode.

Baliga