Topic: Backup & Recovery >> how to recover control file
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| Title: how to recover control file |
| imran |
Posted: Jul 08, 2008 09:12:39 AM |
Total Post: 3
Joined: Jul, 2008
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I have three controlfiles in my database,one of the controlfile is corrupted during database is in functional,
suddenly my database is shutdown,during next startup oracle send me the error,i have the old backup of controlfile that is taken before one week,my database is running in archivelog mode and no datafile is added yet but i added five tables this week,how could i recover the database.
i am working in oracle 9i |
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 Babu |
| Posted: Jul 08, 2008 01:03:43 PM |  |
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Total Post: 94
Joined: Oct, 2007
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Hi,
You need to create text based controlfile using;
'ALTER DATABASE BACKUP CONTROLFILE TO TRACE'
Babu
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| eyecycas |
| Posted: Jul 09, 2008 03:05:28 PM | |
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Total Post: 6
Joined: Nov, 2007
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Hello,
Babu is right! But you can even have it easier. If just one controlfile is gone and the others are intact, just shutdown the instance. Replace the damaged controlfile with one of you other intact controlfiles and then startup the instance. That's possible, because you only need 1 Controlfile. The others are identical copies of the Original.
host > cp controlfile03.ctl controlfile01.ctl
Or you can do it in NOMOUNT, by altering the parameter CONTROL_FILES. Just delete the damaged Controlfile from this entry:
alter system set CONTROL_FILES= '../controlfile02.ctl', '../controlfile03.ctl';
shutdown immediate;
startup;
Hope I was able to help.
bye-bye
eyecycas
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| Babu |
| Posted: Jul 09, 2008 09:08:13 PM | |
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Total Post: 94
Joined: Oct, 2007
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