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RESTORE CONTROL FILES FROM BACKUP 11G



C:\Users\computer>set ORACLE_SID=TEST

C:\Users\computer>sqlplus / as sysdba

SQL*Plus: Release 11.1.0.7.0 - Production on Thu May 10 23:05:45 2013

Copyright (c) 1982, 2008, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select name from v$database;

NAME
---------
TEST

TAKEN BACKUP OF THE CONTROL FILE;

SQL> ALTER DATABASE BACKUP CONTROLFILE TO TRACE AS 'D:\TEST1\CONTROL.BKP';

Database altered.

SQL> shut immediate
Database closed.
Database dismounted.
ORACLE instance shut down.

NOTE: EDITED PFILE AND REMOVED THE EXISTS CONTROLFILE PARAMETER FROM IT & TRY STARTED THE DATABASE IN MOUNT.

SQL> startup mount;
ORACLE instance started.
Total System Global Area  535662592 bytes
Fixed Size                  1348508 bytes
Variable Size             167775332 bytes
Database Buffers          360710144 bytes
Redo Buffers                5828608 bytes
ORA-00205: error in identifying control file, check alert log for more info


SQL> shut immediate
ORA-01507: database not mounted


ORACLE instance shut down.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

C:\Users\computer>D:

D:\>cd TEST1

D:\TEST1>sqlplus / as sysdba

SQL*Plus: Release 11.1.0.7.0 - Production on Thu May 10 23:14:25 2013

Copyright (c) 1982, 2008, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> startup nomount
ORACLE instance started.

Total System Global Area  535662592 bytes
Fixed Size                  1348508 bytes
Variable Size             167775332 bytes
Database Buffers          360710144 bytes
Redo Buffers                5828608 bytes

NOTE:CREATED SCRIPT FROM THE BACKUP CONTROL FILES.

SQL> @Create_control_file.sql

Control file created.

SQL> alter database mount;
alter database mount
*
ERROR at line 1:
ORA-01100: database already mounted - CONTROL FILES CREATED AND DATABASE STARTED IN MOUNT.

SQL> alter database open;

Database altered.

SQL> select open_mode,log_mode from v$database;

OPEN_MODE  LOG_MODE
---------- ------------
READ WRITE ARCHIVELOG

SQL> select name from v$database;

NAME
---------
TEST

SQL> show parameter control;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time        integer     7
control_files                        string      D:\TEST1\CONTROLFILE.CTL
control_management_pack_access       string      DIAGNOSTIC+TUNING
SQL> create spfile from pfile;

File created.

SQL> shut immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup;
ORACLE instance started.

Total System Global Area  535662592 bytes
Fixed Size                  1348508 bytes
Variable Size             167775332 bytes
Database Buffers          360710144 bytes
Redo Buffers                5828608 bytes
Database mounted.
Database opened.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

D:\TEST1>


SCRIPT USED > Create_control_file.SQL

CREATE CONTROLFILE REUSE DATABASE "TEST" NORESETLOGS  ARCHIVELOG
    MAXLOGFILES 16
    MAXLOGMEMBERS 3
    MAXDATAFILES 100
    MAXINSTANCES 8
    MAXLOGHISTORY 292
LOGFILE
  GROUP 1 'D:\TEST1\REDO01.LOG'  SIZE 50M,
  GROUP 2 'D:\TEST1\REDO02.LOG'  SIZE 50M,
  GROUP 3 'D:\TEST1\REDO03.LOG'  SIZE 50M
DATAFILE
  'D:\TEST1\SYSTEM01.DBF',
  'D:\TEST1\SYSAUX01.DBF',
  'D:\TEST1\UNDOTBS01.DBF',
  'D:\TEST1\USERS01.DBF'
CHARACTER SET WE8MSWIN1252
;

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