How to find out WHAT PFILE IS USED?

Question

I find that many spfile and pfile coexist in one system. How do I know
which one is used by the DBA to startup the database?
If the database is started, I can type "show parameter spfile" to
check the location of spfile. But it show nothing if pfile is used.
but what about pfile?

Answer 1

>
I find that many spfile and pfile coexist in one system. How do I know
which one is used by the DBA to startup the database?
If the database is started, I can type "show parameter spfile" to
check the location of spfile. But it show nothing if pfile is used.
but what about pfile?From
http://www.dba-oracle.com/concepts/pfile_spfile.htm
==============================
Depending on which operating system you are running on,
your PFILE is located by default in the ORACLE_HOME\database
(usually the case on Windows) or ORACLE_HOME\dbs directory
for most other platforms (we talked about where ORACLE_HOME
was earlier in this book).
If you are using a PFILE, it takes on the form of initSID.ora, meaning
the file will use the ORACLE_SID you defined when you created the
database. If your SID is called testdb, the resulting PFILE should
be called inittestdb.ora
=============================
Now, what you should be able to do also is to
find the script that starts the database and find the
pfile that it points to.
You could do
find . -name "*.ora" -print
Oh yes, PLEASE, PLEASE put OS and DB versions
in your posts.
Paul...