Couldn't switch log

Question

Dear buddies,
I was dropping and recreating some of the redo logs to create them with a larger size and somehow made some mistakes (in location and when I want to drop and recreate now, one of the files is giving me an error.
select * from v$logfile;
select group#, sequence#, bytes, archived, members, status
from v$log;
alter database drop logfile group 1;
alter database
add logfile group 1 ('F:\ORACLE\DATA\DEV\REDO01.LOG',
'F:\ORACLE\DATA\DEV\REDO01A.LOG',
'F:\ORACLE\DATA\DEV\REDO01B.LOG')SIZE 55M reuse;
alter database drop logfile group 2;
alter database
add logfile group 2 ('F:\ORACLE\DATA\DEV\REDO02.LOG',
'F:\ORACLE\DATA\DEV\REDO02A.LOG',
'F:\ORACLE\DATA\DEV\REDO02B.LOG')SIZE 55M reuse;
alter database drop logfile group 3;
alter database
add logfile group 3 ('F:\ORACLE\DATA\DEV\REDO03.LOG',
'F:\ORACLE\DATA\DEV\REDO03A.LOG',
'F:\ORACLE\DATA\DEV\REDO03B.LOG')SIZE 55M reuse;
alter database
add logfile group 4 ('F:\ORACLE\DATA\DEV\REDO03.LOG',
'F:\ORACLE\DATA\DEV\REDO03A.LOG',
'F:\ORACLE\DATA\DEV\REDO03B.LOG')SIZE 55M reuse; --added this newly and didn't change the file name
alter system switch logfile;
ALTER SYSTEM CHECKPOINT GLOBAL;
This is the error I receive when I try to start the database
ORA-00331: log version 10.2.0.4.0 incompatible with ORACLE version 10.1.0.0.0
ORA-00312: online log 2 thread 1: 'F:\ORACLE\DATA\MAinDB\LOG_02.LOG'
I mistakenly used the logs which belongs to another database.
Please help me.
Its the production database!
Nith

Answer 1

Ok try that:
alter database
add logfile group 5 ('F:\ORACLE\DATA\DEV\REDO05.LOG') SIZE 55M ;
alter database
add logfile group 6 ('F:\ORACLE\DATA\DEV\REDO06.LOG') SIZE 55M ;
alter database drop logfile group 1;
alter database drop logfile group 2;
alter database drop logfile group 3;
alter database drop logfile group 4;if you can not drop these logfiles then you need recreate controlfiles again with resetlogs option as:
sqlplus "/as sysdba"
shutdown ummediate;
STARTUP NOMOUNT;
CREATE CONTROLFILE REUSE DATABASE "W" RESETLOGS  ARCHIVELOG
    MAXLOGFILES 16
    MAXLOGMEMBERS 3
    MAXDATAFILES 100
    MAXINSTANCES 8
    MAXLOGHISTORY 292
LOGFILE
  GROUP 1 'D:\ORACLE\PRODUCT\10.2.0\ORADATA\W\REDO01.LOG'  SIZE 50M,
  GROUP 2 'D:\ORACLE\PRODUCT\10.2.0\ORADATA\W\REDO02.LOG'  SIZE 50M,
  GROUP 3 'D:\ORACLE\PRODUCT\10.2.0\ORADATA\W\REDO03.LOG'  SIZE 50M
DATAFILE
  'D:\ORACLE\PRODUCT\10.2.0\ORADATA\W\SYSTEM01.DBF',
  'D:\ORACLE\PRODUCT\10.2.0\ORADATA\W\UNDOTBS01.DBF',
  'D:\ORACLE\PRODUCT\10.2.0\ORADATA\W\SYSAUX01.DBF',
  'D:\ORACLE\PRODUCT\10.2.0\ORADATA\W\USERS01.DBF',
  'D:\ORACLE\PRODUCT\10.2.0\ORADATA\W\EXAMPLE01.DBF';
alter database open resetlogs;Edited by: Chinar on Aug 3, 2010 4:00 AM