Pfile or spfile?

When Oracle starts an instance it reads the spfile or pfile to determine the initialization parameters.
i want to ask that hacker can also hack the spfile and pfile and damage them or anyone else wrong? in that case how to protect our s/pfiles.
Manish

but if hacker changed the dbname, instance name in that case what will happen?And drop tables, or update data could be more vicious...
This is a whole part of security architecture problem, and not only against (s)pfile.
I would advise you to read some articles from Pete Finnigan.
Nicolas.

Similar Messages

Create pfile from spfile when oracle in idle mode

Create pfile from spfile when oracle in idle mode
from where it creates pfile?? note:-oracle is in idle stage..

Since you are asking for creating PFILE so I think below text will answer your question :
If you do not specify spfile_name, then the database uses the spfile that is currently associated with the instance, usually the one that was used a startup. If no spfile is associated with the instance, then the database looks for the platform-specific default server parameter file name. If that file does not exist, then the database returns an error.http://docs.oracle.com/cd/E11882_01/server.112/e26088/statements_6008.htm#i2072768
Regards
Girish Sharma

How to know database is using pfile or spfile?????????????

Hi Guru's
how to know database is using pfile or spfile?????????????
THanks

select decode(count(*), 1, 'spfile', 'pfile' )
from v$spparameter
where rownum=1
and isspecified='TRUE'
OR
SELECT DECODE(value, NULL, 'PFILE', 'SPFILE') "Init File Type"
FROM sys.v_$parameter WHERE name = 'spfile';
Regards
Girish Sharma

Create pfile from spfile ORA-27037

This always worked on some other Databases I worked in past. however this Database raise error. Here are the steps on how I did it
Old initSID.ora file located in directory below
cd $ORACLE_HOME/dbs
sqlplus / as sysdba...
SQL> create pfile from spfile ;
create pfile from spfile
ERROR at line 1:
ORA-27037: unable to obtain file status
IBM AIX RISC System/6000 Error: 2: No such file or directory
Additional information: 3
Any idea why this does not work?

This is something strange, if the database is using spfile then why there is no value in VALUES column, see below:(like this)
SQL> show parameter pfile;
NAME TYPE VALUE
spfile string ?/dbs/[email protected]
Do you able to see physical file .

Pfile from Spfile

Hi ,
I am trying to create pfile from spfile and getting this error.
Can u pls help me out.
SQL> show parameter pfile;
NAME TYPE VALUE
spfile string ?/dbs/[email protected]
SQL> create pfile from spfile;
create pfile from spfile
ERROR at line 1:
ORA-07393: unable to delete text file
Linux Error: 2: No such file or directory
Additional information: 32
Additional information: 29
Additional information: 3
SQL>
Thanx in advance

hi ,
O/P of ls -al is
drwxr-xr-x 43 oracle oinstall 4096 Jan 19 13:26 .
drwxr-xr-x 3 oracle oinstall 4096 Jan 19 12:40 ..
drwxr-xr-x 10 oracle oinstall 4096 Jan 19 13:02 Apache
drwxr-xr-x 5 oracle oinstall 4096 Jan 19 13:06 assistants
drwxr-xr-x 4 oracle oinstall 4096 Jan 19 13:41 BC4J
drwxr-xr-x 2 oracle oinstall 4096 Jan 22 09:44 bin
drwxr-xr-x 5 oracle oinstall 4096 Jan 19 12:52 classes
drwxr-xr-x 10 oracle oinstall 4096 Jan 19 13:02 ctx
drwxr-xr-x 2 oracle oinstall 4096 Mar 30 10:49 dbs
drwxr-xr-x 3 oracle oinstall 4096 Jan 19 12:54 demo
drwxr-xr-x 3 oracle oinstall 4096 Jan 19 12:55 doc
drwxr-xr-x 10 oracle oinstall 4096 Jan 19 13:01 ds
drwxr-xr-x 7 oracle oinstall 4096 Jan 19 13:41 hs
drwxr-xr-x 3 oracle oinstall 4096 Jan 19 13:41 install
drwxr-xr-x 2 oracle oinstall 4096 Jan 19 13:02 jar
drwxr-xr-x 8 oracle oinstall 4096 Jan 19 12:54 javavm
drwxr-xr-x 5 oracle oinstall 4096 Jan 19 12:47 jdbc
drwxr-xr-x 7 oracle oinstall 4096 Jan 19 13:26 jis
drwxr-xr-x 2 oracle oinstall 4096 Jan 19 13:26 jlib
lrwxrwxrwx 1 oracle oinstall 21 Jan 19 12:51 JRE -> /opt/oracle/jre/1
.1.8
drwxr-xr-x 6 oracle oinstall 4096 Jan 19 12:56 jsp
drwxr-xr-x 15 oracle oinstall 4096 Jan 19 13:00 ldap
drwxr-xr-x 2 oracle oinstall 4096 Jan 19 13:35 lib
drwxr-xr-x 5 oracle oinstall 4096 Jan 19 13:26 md
drwxr-xr-x 13 oracle oinstall 4096 Jan 19 13:40 network
drwxr-xr-x 3 oracle oinstall 4096 Jan 19 12:55 oci
drwxr-xr-x 3 oracle oinstall 4096 Jan 19 12:47 ocommon
drwxr-xr-x 16 oracle oinstall 4096 Jan 19 13:41 oem_webstage
drwxr-xr-x 4 oracle oinstall 4096 Jan 19 12:47 oracore
drwxr-xr-x 13 oracle oinstall 4096 Jan 19 12:55 ord
drwxr-xr-x 7 oracle oinstall 4096 Jan 19 13:26 otrace
drwxr-xr-x 4 oracle oinstall 4096 Jan 19 12:54 owm
drwxr-xr-x 8 oracle oinstall 4096 Jan 19 12:55 plsql
drwxr-xr-x 8 oracle oinstall 4096 Jan 19 12:47 precomp
drwxr-xr-x 13 oracle oinstall 4096 Jan 19 13:41 rdbms
drwxr-xr-x 8 oracle oinstall 4096 Jan 19 13:26 relnotes
-rwxr-xr-x 1 oracle oinstall 7448 Jan 19 13:41 root.sh
drwxr-xr-x 3 oracle oinstall 4096 Jan 19 12:47 slax
drwxr-xr-x 5 oracle oinstall 4096 Jan 19 12:48 sqlj
drwxr-xr-x 7 oracle oinstall 4096 Jan 19 12:54 sqlplus
drwxr-xr-x 8 oracle oinstall 4096 Jan 19 13:01 syndication
drwxr-xr-x 12 oracle oinstall 4096 Jan 19 12:56 sysman
drwxr-xr-x 10 oracle oinstall 4096 Jan 19 13:06 ultrasearch
drwxr-xr-x 3 oracle oinstall 4096 Jan 19 13:00 wwg
drwxr-xr-x 8 oracle oinstall 4096 Jan 19 12:47 xdk
and I have seen in my dbs directory also that inittest.ora does not exist.
I have all the permissions on this particular directory.
Pls check into it .
Waiting for the response.

Creating Pfile from Spfile while Instance is down

We can create pfile from the spfile of an instance which is currently shut down. Right?
SQL*Plus: Release 11.1.0.7.0 - Production on Mon Apr 12 02:06:52 2010
Copyright (c) 1982, 2008, Oracle. All rights reserved.
Connected to an idle instance.
SQL> create pfile from spfile;
File created.Reason why we need it:
We used to have an instance which consumed 5 gb Memory_target and then we shut it down. It was using SPFILE. Now we want to bring up this instance with only 3gb Memory_target. So we are thinking of editing the pfile created using the above method. It should be fine. Right?

GarryB wrote:
We can create pfile from the spfile of an instance which is currently shut down. Right?
SQL*Plus: Release 11.1.0.7.0 - Production on Mon Apr 12 02:06:52 2010
Copyright (c) 1982, 2008, Oracle. All rights reserved.
Connected to an idle instance.
SQL> create pfile from spfile;
File created.Reason why we need it:
We used to have an instance which consumed 5 gb Memory_target and then we shut it down. It was using SPFILE. Now we want to bring up this instance with only 3gb Memory_target. So we are thinking of editing the pfile created using the above method. It should be fine. Right?Right

Pfile vs spfile

Hello all,
I want to know whether Oracle9i running on my server is using spfile or pfile configuration.
Thanks.

hi hans,
good point indeed, i would like to ask some question if you don't mind!!!!!!!
i have a database, and i opened it by using
SQL>startup pfile=/path/pfile.ora
database open
the next time i opened it, it do not need to provide path of pfile, rather it get started directly, and oracle first search for the spfile am i right??? it looks at the default location of pfile for database parameters.....please correct me if i am wrong...and we use
SQL> create spfile from pfile=/path/pfileinit.ora
spfile created
you are right pfile is used only to find database parameters, but what if i want to change some parameters that are not static,that is need to down database, at that time we should know the path of pfile....please correct me if i am wrong, although we can create
SQL> create pfile=/path/pfileinit.ora from spfile;
and then make changes to pfile as we want.....am i thinking same way that i should think???
thanks and regards
VD

Instance started with pfile or spfile?

How to know which parameter file used for start the instance?

SQL> show parameter spfile;
NAME TYPE VALUE
spfile string /oracle/product/10.2.0/db_1/db
s/spfileneon.ora
if you get the path under the VALUE column, it means that you have used spfile to open the db..

How to know whether the database is using SPFILE or PFILE

How can i know whether the database is using SPFILE or PFILE.
There are both initSID.ora and spfileSID.ora in default location.
The registry entry for ORA_SID_PFILE is C:\oracle\ora90\database\initSID.ora
Also, if it is using SPFILE than how can i modify the non dynamic parameters when the database is in the close state.
Manu

If you do not specify a path of a pfile , when you actually startup a database , then it will be use your pfile , if you specify a path explicitly fot a pfile , then it'll use your pfile.
Also, if it is using SPFILE than how can i modify the non dynamic parameters when the database is in the close state.sql > create spfile from pfile ;
the spfile will syncronise with pfile .
Hare krishna
Alok

Verify steps is correct - about spfile & pfile

hi guys,
let say i need to modify log_archive_format to a valid value and my database cannot startup. The step i need to take is
SQL> conn sys as sysdba
Enter password:
Connected.
SQL>
SQL>
SQL> create pfile from spfile;
File created.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup pfile;
SP2-0714: invalid combination of STARTUP options
SQL> startup pfile
SP2-0714: invalid combination of STARTUP options
SQL> startup pfile='C:\oraclexe\app\oracle\product\11.2.0\server\database\initXE.ora';
ORACLE instance started.
Total System Global Area 535662592 bytes
Fixed Size                  1384760 bytes
Variable Size             243273416 bytes
Database Buffers          285212672 bytes
Redo Buffers                5791744 bytes
Database mounted.
Database opened.
SQL>
SQL>
SQL> show user
USER is "SYS"
SQL>
SQL>
SQL> show parameter spfile;
NAME                                 TYPE        VALUE
spfile                               string
File created.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 535662592 bytes
Fixed Size                  1384760 bytes
Variable Size             243273416 bytes
Database Buffers          285212672 bytes
Redo Buffers                5791744 bytes
Database mounted.
Database opened.
SQL>
SQL>
SQL> show parameter spfile;
NAME                                 TYPE        VALUE
spfile                               string      C:\ORACLEXE\APP\ORACLE\PRODUCT
                                                 \11.2.0\SERVER\DATABASE\SPFILE
                                                 XE.ORA
SQL>the step to restart the database again after the database was startup using the pfile was to allow the database to use spfile back. Is that correct?
And not too sure why the below won't work until i specify the full path.
>
SQL> startup pfile;
SP2-0714: invalid combination of STARTUP options
SQL> startup pfile
SP2-0714: invalid combination of STARTUP options
SQL> startup pfile='C:\oraclexe\app\oracle\product\11.2.0\server\database\initXE.ora';
ORACLE instance started.

Andy Klock wrote:
You have me stumped. It didn't look like you did anything at all. Typically if you get into a state when the spfile has values that don't allow you to startup the instance, you create a pfile from the spfile, which you did. Then you correct the pfile. (vi initXE.ora) which I don't see. Then you execute create spfile from pfile='&corrected_pfile', then startup the instance with the fixed spfile.
As for the pfile parameter, you have to specify the file. That's the way it's always been. If you don't specify anything (i.e. startup) it will first default to the spfile (9i and above) then to the initORACLESID.ora, otherwise it doesn't know where to look.
Good luck.oops....i accidently copied the wrong demo.. .
it should be :
SQL> conn sys as sysdba
Enter password:
Connected.
SQL>
SQL>
SQL> create pfile from spfile;
File created.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
-- MODIFY THE pFILE, THEN
SQL> startup pfile;
SP2-0714: invalid combination of STARTUP options
SQL> startup pfile
SP2-0714: invalid combination of STARTUP options
SQL> startup pfile='C:\oraclexe\app\oracle\product\11.2.0\server\database\initXE.ora';
ORACLE instance started.
Total System Global Area 535662592 bytes
Fixed Size                  1384760 bytes
Variable Size             243273416 bytes
Database Buffers          285212672 bytes
Redo Buffers                5791744 bytes
Database mounted.
Database opened.
SQL>
SQL>
SQL> show user
USER is "SYS"
SQL>
SQL>
SQL> show parameter spfile;
NAME                                 TYPE        VALUE
spfile                               string
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 535662592 bytes
Fixed Size                  1384760 bytes
Variable Size             243273416 bytes
Database Buffers          285212672 bytes
Redo Buffers                5791744 bytes
Database mounted.
Database opened.
SQL>
SQL>
SQL> show parameter spfile;
NAME                                 TYPE        VALUE
spfile                               string      C:\ORACLEXE\APP\ORACLE\PRODUCT
                                                 \11.2.0\SERVER\DATABASE\SPFILE
                                                 XE.ORA
SQL>

Create SPFILE from pfile not working

Experts,
I have edited SPFILE by mistake....but.... I do have a good pfile and am able to startup oracle from pfile.
I am trying create SPFILE from pfile:
create spfile='path/file' from pfile='path/file'
as soon as I execute this command prompt is showing as follows:
c>: 2
and is expecting some reponse, if typein some char like:
c>:2 AAAA,,, reponds back:
c>: 3 (expecting response again)
Please let me know what could be wrong.
I am connected as SYSDBA...
Your help will be greatly appreciated.
Venkat

create spfile='path/file' from pfile='path/file'It's expecting a command termination : try adding a semicolon, e.g.
create spfile='path/file' from pfile='path/file';
http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14357/ch4.htm#sthref829

Spfile is dynamic. But so is Pfile. Right ?

Version:11.2.0.3
Quoting Metalink Doc "Pfile vs SPfile [ID 249664.1]"
"The SPFILE permits dynamic changes without requiring you to bring down the instance"
Doesn't the above statement give a wrong impression that when you use pfile, you need to bounce the DB for dynamich parameter ?
The following commands are run in a DB using pfile. As I've shown below, I've changed the following dynamic parameter without bouncing the DB.
The only downside is that this change is not persistent across reboots unless you manually edit the pfile.
SQL> ALTER SYSTEM SET LARGE_POOL_SIZE = 300M SCOPE= MEMORY;
System altered
SQL> SHOW PARAMETER LARGE_POOL
NAME TYPE VALUE
large_pool_size big integer 304M

Hi,
"The SPFILE permits dynamic changes without requiring you to bring down the instance"
Means no need to edit value in later(database restart) like you have to do in the pfile case

PFILE, SPFILE ?

I am new to oracle. When I startup the database get the following error.
SQL> STARTUP NOMOUNT;
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file 'E:\ORACLE\PRODUCT\10.1.0\DB_1\DATABASE\INITOCA10GS.ORA'
SQL>
Are there any option to start the database if there is no any pfile or spfile?
Thanks,
Regards Manoj.

Thanks to all.
After database starts can I identify which file that
the database used to start?
Use show parameter spfile. If it displays some value it means the database has been started up using the shown spfile. Otherwise you are using pfile.
And i think there is no way to see using which pfile you started up the database ?
Amardeep Sidhu

Is possible convert/edit OFFLINE spfile to pfile in 11gR2

Hello.
I' ve got some SPFILEs to test with COMPATIBLE=11.1.0.0.0 on a 11gR2 (11.2.0.0.0) database.
Is there ANY way (pfile from spfile + editing + spfile from pfile seems not working) to chiange the COMPATIBLE parameter to 11.2.0.0.0 in the original SPFILEs?
Thanks
Paolo

PaolFili wrote:
14:01:38 31-MAY-13:SYS@orcl >show parameter compatible
NAME TYPE VALUE
compatible string 11.2.0.0.0
14:01:50 31-MAY-13:SYS@orcl >sho parameter spfile
NAME TYPE VALUE
spfile string /u01/app/oracle/product/11.2.0
/dbhome_1/dbs/spfileorcl.ora
Probably mu qyestion is not clear.
i)I' ve installled 11g*R2* software and create a 11g*R2* db.
ii)I' m not able to LOAD a spfile with compatible 11.1.0.0.0 ---
someone can show me how to do?
If I SUBSTITUTE the spfileorcl.ora (default) with a spfile with COMPATIBLE=11.1.0.0.0
I' got the following error from alert:
Fri May 31 14:07:50 2013
ALTER DATABASE MOUNT
ORA-00210: cannot open the specified control file
ORA-00202: control file: '/u01/app/oracle/oradata/orcl/control03.ctl'
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
ORA-00210: cannot open the specified control file
ORA-00202: control file: '/u01/app/oracle/oradata/orcl/control02.ctl'
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
And what do you suppose the above error means?
Hint: it has nothing, zero, zilch, nada, null to do with a 'compatible' parameter.
Additional information: 3
Fri May 31 14:07:51 2013
Checker run found 2 new persistent data failures
ORA-205 signalled during: ALTER DATABASE MOUNT...
so the question is:
Is possible to modify using a 11.2.0.0.0 instance the COMPATIBLE parameter in OFFLINE files from 11.1.0.0.0 to 11.2.0.0.0 ?You've got bigger problems than your COMPATIBLE parameter. Like, why is the spfile (or is it a pfile) pointing to a non-existent control file?
>
Thanks

SPFILE to PFILE

Hi,
My database is now using SPFILE insteed of PFILE,How can I alter the database to use PFILE without shuting the database down

Hey, you asked the following
My database is now using SPFILE insteed of PFILE,How can I alter the database to use PFILE without shuting the database down
See, once the database is started, oracle doesn't use PFILE or SPFILE, though, you can make changes to the SPFILE (if your database started using SPFILE) using ALTER SYSTEM...SCOPE=SPFILE.
So, if you want to use PFILE now, you have to shutdown and restart your database using PFILE.
Now you say We manage to solve it by using alter system set with scope to change it in SPFILE.It's now reading the right parameters
Sorry, you said earlier that you want to use PFILE.
-Mukesh

Pfile or spfile?

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