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Resetting Redo Logs (ORA-322)

I am using Personal Oracle8i. Recently I have been experimenting with adding and dropping redo log files. It appears that in doing so I may have dropped and subsequently deleted, using Windows Explorer, the current redo log. Even after restoring the deleted file from the recycle bin, my orclALRT file gives the message:

Errors in file c:\ora95po\admin\orcl\bdump\orclLGWR.TRC:
ORA-00322: log 7 of thread 1 is not current copy
ORA-00312: online log 7 thread 1 'C:ORA95PO\ORADATA\ORCL\REDO08.LOG'

Errors in file C:\ORA95PO\admin\orcl\bdump\orclLGWR.TRC:
ORA-00322: log 7 of thread 1 is not current copy
ORA-00312: online log 7 thread 1 'C:ORA95PO\ORADATA\ORCL\REDO08.LOG'

ORA-00322 signaled during alter database open...
archiving is disabled

I am running Personal Oracle8i in NOARCHIVELOG mode. Redo08.log is definitely one that I deleted. I cannot swear to it, but I think I dropped it using the ALTER DATABASE command prior moving it from its folder to the recycle bin.

Since I cannot start the Oracle database because of this problem, I'm wondering if it is possible to reset the logs without starting the database or if whatever I have done requires that I reinstall Personal Oracle 8i and my various client products (e.g., Oracle Developer).

Thanks for your help.

Richard Scamell

ASKER CERTIFIED SOLUTION

UsamaMunir

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rscamell

ASKER

Usama,

Thanks for your prompt comment. I have a question. How do I do what you have suggested if I cannot open the database to begin with? Can I issue a mount database command from the MS-DOS prompt? I am running Windows 98. At the moment, believe I have eight log files in my database. I cannot tell for sure since I am unable to get into Oracle and look at the content of v$logfile. Can the switch logfile command be entered at the MS-DOS prompt without having the database started?

Thanks again for your comment.

Richard Scamell

Guy Hengel [angelIII / a3]

at the command prompt, issue:
SET ORACLE_SID=<yourdatabasesid>

start the servermanager command:
svrmgr30 (or eventually svrmgrl, check your oracle\bin folder for the actual executable.

then, at the svrmgr prompt, issue this:
connect internal/password
(password is typically oracle, but depending on the config, you might omit the password)

then:
open database mount;
and you have mounted (but not opened) the database

now, here comes the time to alter the REDO log as suggested my UsamaMunir

Finally, open the database
ALTER DATABASE OPEN;
the database should now open correctly

to close:
exit (svrmgr)
exit (dos prompt)

UsamaMunir

Angelll is correct

Usama

rscamell

ASKER

Usama,

Thanks very much for your help and especially for responding so quickly.

Richard Scamell