3. Oracle control file management

1. Close instance （shutdown immediate）, Delete all control files , Recreate the control file （3 individual ）

select member from v$logfile;

select value from v$parameter where name = 'control_files';

First, close the database

perform create control command （ I reported an error before , The reason is that the log file size is not set correctly , It should be the same size as when it was created ）

2. After the above operations are completed , Add a control file control04.ctl, Put it in D disc （ Multi mirror ）

ALTER SYSTEM SET CONTROL_FILES =
'D:\APP\SNAKEWOOD\PRODUCT\11.2.0\DBHOME_1\DATABASE\ORA_CONTROL1',
'D:\APP\SNAKEWOOD\PRODUCT\11.2.0\DBHOME_1\DATABASE\ORA_CONTROL2',
'D:\app\Snakewood\oradata\mydba\ORA_CONTROL4'
SCOPE=SPFILE;

3. The backup control file is a text file

4. Please try to control01.ctl File move to C:\oracle\product Location , And ensure that the database can be re 、 Normal start
   Query the location of the control file
   
   modify spfile Location of control files in
   
   Close the database , And move the control file to the modified location

Start database , And query the directory where the control file is located