Ian, 
That is a very good point to remember. Sounds like the voice of
experience.
Thanks for the tip.
Ron

>>> [EMAIL PROTECTED] 09/03/03 03:34PM >>>
Is the want to read the spfile just a curiosity?  One should not rely
on either the init.ora or the spfile to determine which parameters are
set, but should query the database.  

Now that we have both init.ora and an spfile someone is going to get
caught.  For instance a patch requirement requires 150 MB shared_pool
and java_pool sizes and warns about an unrecoverable memory error if the
pools are undersized.  The person dutifully makes the changes to the
init.ora and starts the database, but forgets that an spfile is being
used with the database  He then starts the patch and it fails with the
unrecoverable memory error.

I would have been caught by this if my patchset installation procedure
did not include "show parameter"  to verify their settings.

Ian MacGregor  
Stanford Linear Accelerator Center
[EMAIL PROTECTED] 

-----Original Message-----
Sent: Monday, September 01, 2003 8:19 PM
To: Multiple recipients of list ORACLE-L


Prem,

The SPFILE should never be opened to be modified; opening a file to see
the contents are acceptable and that's what I said. Sometimes opening
the file in an editor may not be needed; "type" in Windows command
prompt or "cat" in unix will let us achive the same objective.

Talking about the SPFILE modification, you can't effectively modify it
with accuracy. The file is binary (actually binary in the beginning and
then text towards the bottom part), so even if you open it in notepad
and save it, there is no guarantee that the file will be accurately
saved with all contents intact.

By the way, I have edited the SPFILE in some cases, only in
development, though; but I wouldn't advise it to be done that way;
always use ALTER SYSTEM ... SCOPE=SPFILE to modify it or edit the
init.ora file and then create the SPFILE from it. You can create the
spfile from pfile even when the instance is down.

HTH.

Arup

----- Original Message ----- 
To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]>
Sent: Monday, September 01, 2003 10:49 PM


> Arup Bhai, i remember oracle docs saying NOT to open a spfile and
that 
> it
may even
> corrupt the file.
>
> Is that always true ?
> Can the spfile be opened ?
> can you kindly explain me ?
>
> Thanks & Regards,
> Prem Khanna J.
>
>
> 02-09-2003 04:14:26, "Arup Nanda" <[EMAIL PROTECTED]> wrote:
> >Does the entry even exist in the SPFILE? Open up the spfile in 
> >notepad
and
> >check the existence of the parameter in there. Do the following:
> >SQL> alter system set undo_suppress_errors = false scope=spfile
sid='ananda';
> >System altered.
> >SQL> ALTER SYSTEM RESET undo_suppress_errors scope=spfile 
> >SQL> sid='ananda';
> >System altered.
> >Arup
>
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net 
> -- 
> Author: Prem Khanna J
>   INET: [EMAIL PROTECTED] 
>
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